Issue-568 - August 24, 2015   Recommend
Press Releases Patents Technical Papers
Having problems with bubbling in your polyurethane coatings systems? Oxazolidines are the answer

Traditional polyurethane coating applications have a slow and haphazard curing process, which allows moisture or humidity to cause unwanted reactions, generating CO2 bubbles. These create pinholes or blisters, which weaken the film integrity and spoil the finished appearance.And because the bubbles occur during the curing process, there's nothing...

Company name: Industrial Copolymers
Published On: Tuesday August 18th, 2015

US EPA releases initial assessments for flame retardants

The US EPA has released initial assessments for three flame retardant chemical clusters, in a bid to identify "scenarios where further risk assessment may be necessary".They have been conducted under the Toxic Substances Control Act (TSCA) chemicals work plan programme.The assessments address the likely exposure and hazard scenarios to workers and...

Company name: US Environmental Protection Agency
Published On: Tuesday August 18th, 2015

Resichem Commits To Exclusive Use Of Environmentally Safe Polyurethane Foam Blowing Agent Ahead Of...

Resichem, the leading South African provider of polyurethane foam systems to a range of industries, has announced an expansion of its agreement with Foam Supplies, Inc. (FSI) which will dramatically increase its use of FSI's environmentally benign polyurethane foam blowing agent called ecomate . Resichem has been slowly transitioning to ecomate for...

Company name: Resichem
Published On: Friday August 21st, 2015

Demands increase for ecomate non-HFC Foam Blowing Agent

Due to increased customer demand for ecomate foam blowing agent, and in preparation for the U.S. EPA's pending phase outs of HFC blowing agents, Foam Supplies is adding over 50,000 square feet of ecomate production and warehousing capacity.ST. LOUIS, MO - Foam Supplies, Inc., a leading polyurethane foam systems supplier and producer of the patented...

Company name: Foam Supplies
Published On: Friday August 21st, 2015

Chem-Trend Series 8000 Release Agents Designed to Increase Efficiency of OSB Production

Chem-Trend, a global leader in the development and production of high-performance release agents and casting lubricants, recently launched its Chem-Trend Series 8000 line for oriented strand board (OSB) producers. The customizable line of release agents is specially engineered for pMDI applications and the variances found between different...

Company name: Chem-Trend
Published On: Thursday August 20th, 2015

ALBERDINGK PUR-MATT: First mix it! Then use it.

These innovations can be used as sole binders or as additives to modify the surface porperties of existing products■ ALBERDINGK PUR-MATT 300This innovative soft feel inherent matt polyurethane dispersion can be used on paper, leather, plastics and as overprint varnish. Besides the unique haptic effect, ALBERDINGK PUR-MATT 300 offers a...

Company name: Alberdingk Boley, Inc
Published On: Wednesday August 19th, 2015

AkzoNobel Launches New U-Base System

AkzoNobel's Vehicle Refinishes business has released a new U-TECH basecoat system.Known as U-Base, it is designed for the commercial builder and refinishing markets. U-Base is a two-component polyurethane basecoat system and replaces the Polybase and Polybase Plus systems.The U-Base basecoat system introduces four new components: U-Base Binder,...

Company name: AkzoNobel
Published On: Tuesday August 18th, 2015

PPG coatings specified for TAI trainer aircraft

PPG Industries aerospace coatings have been specified by Turkish Aerospace Industries (TAI) for the initial production of its Hurkus new-generation basic trainer for the Turkish Armed Forces, with the potential for additional aircraft if production is extended. Fifteen aircraft will be painted with Deft military polyurethane topcoat and...

Company name: PPG Industries
Published On: Friday August 21st, 2015

Why Spray Polyurethane Foam is the Architect's Best Friend

In the past, one thinks of polyurethane only as the material used to stuff your mattresses and sofas to make them quite comfortable for you and your family. These days, polyurethane foam is not limited to that sole purpose. It has evolved to become one of the most versatile materials on the planet. There are numerous uses and densities for...

Company name: Multiflex RNC Philippines
Published On: Wednesday August 19th, 2015

Icynene introduces new 2 hour re-occupancy and 1 hour re-entry times

Global spray foam insulation manufacturer, Icynene, today introduced revised shorter re-entry and re-occupancy allowances for trades and homeowners in the United States for its ultra-low VOC Icynene Classic Max and Icynene ProSeal spray foam products. The revised allowances permit one hour re-entry for trades and two hour re-occupancy for...

Company name: Icynene
Published On: Wednesday August 19th, 2015

Spray Foam is a key element of contemporary building design

To fully understand and appreciate spray foam and its importance to today's building industry is to take a closer look at one of the main goals of architects and building engineers -- to create sustainable structures which allows maximum design creativity. With an ability to contour into any space or shape and adhere to any surface, spray foam...

Company name: Demilec
Published On: Thursday August 20th, 2015

New Durable, Long-Lasting, Sunshine Resistant Glass Paint to Revolutionize Polymer Industry

Hopkins Applied Physics Laboratory has come up with a paint that can withstand not only erosion from sun shine but also one that reflects the sunrays away, making the metal roofs of houses and vehicles durable and long-lasting.Unlike the traditional polymer paint that degrades due to the sun's ultraviolet rays and also turns harmful to the...

Company name: Hopkins Applied Physics Laboratory
Published On: Friday August 21st, 2015

STAUF Introduces PUK-455 (Wide Plank Adhesive)

For the longest time, installers in North America would not consider gluing down solid planks, even though it was a widely accepted practice in Europe. STAUF had already brought specialty adhesives into the US to serve the customers of European Wide Plank Flooring manufacturers. Just recently, more and more US based manufacturers have begun to...

Company name: Stauf Adhesives
Published On: Friday August 21st, 2015

The Installer's Perspective-Ultrabond ECO 962

MAPEI's Ultrabond ECO 962 Pressure Sensitive Wood Flooring Adhesive can be used for engineered wood plank, LVT, LVP, and prefinished cork flooring. However any product is only as good as it meets the performance and application requirements for the installer and the project installation. As part of this new segment we will be interviewing past and...

Company name: Mapei
Published On: Friday August 21st, 2015

NRC announces increase in Wanhua's production capacity

Three years ago, a business partnership between the German chemical distributor Nordmann, Rassmann (NRC) and Chinese TPU manufacturer Wanhua Chemical Group Co., Ltd. was founded. Since then, NRC has been distributing Wanthane brand products and will be presenting these at the Fakuma trade fair from 13 - 17 October 2015 in Friedrichshafen, Germany....

Company name: Nordmann Rassmann
Published On: Friday August 21st, 2015

New material revamps Star Wars Stormtroopers

Film fanatics will be eagerly awaiting the next release in the long awaited Star Wars saga, Episode VII - The Force Awakens.Pre-production for the movie began back in 2012, and the movie premiere will be ready to hit cinemas in the UK, by Christmas this year. Members of the original cast, including Harrison Ford, Mark Hamill, and Carrie Fisher will...

Company name: Alchemie
Published On: Wednesday August 19th, 2015

BASF launches HP+TM Wall System for the residential construction industry

BASF says that its HP+TM Wall System is available to the residential construction industry.The HP+ Wall System combines three BASF products: Neopor, a graphite-enhanced and rigid thermal foam insulation that helps mitigate the risk of moisture inside of wall cavities; WALLTITE HP+, a closed-cell, spray-applied polyurethane for greater insulation,...

Company name: Basf - Walltite
Published On: Friday August 21st, 2015

Why R-Value Matters for Spray Foam Insulation

If you're wondering why R-Value matters for spray foam insulation, we'll do a little comparison of your options.But first. Defining R-Value:This is the unit of thermal resistance for a certain element used in construction. Everything has an R-Value, it's just a matter of how high or low that is to do the job you need.Windows, for example, have...

Company name: Foametix
Published On: Wednesday August 19th, 2015

Polyurethane from Ruhl Puromer wins SPE Innovaton Award 2015 Automotive Body Interior

During the 16th Automotive Award Night on July 3, 2015, awards were given for the most innovative and creative solutions for vehicle production as well as for communication tools related to vehicle production. The Automotive Division Award, which is offered by SPE Central Europe, is known for its high quality and objective criteria. Next to the...

Company name: Ruehl Puromer Gmb
Published On: Friday August 21st, 2015

Autoneum expands its local presence in Mexico

Autoneum has laid the foundation stone for a new plant in the North American growth market of Mexico. The decisive factor behind the expansion of its production capacities in Mexico is the prevailing high demand from international automobile manufacturers for the lightweight and multifunctional components of the market and innovation...

Company name: Autoneum
Published On: Friday August 21st, 2015

New samples of products - Case for intercommunication device

This week OSV Technologiya team of technologists produced new samples of case for intercommunication device, which is going to be used on vessels and ships.These products are made of rapid solid casting mass based on polyurethane Dekolast 5, produced by Italian company Pozzi Arosio. All works are done, using a compact mixing and metering machine...

Company name: OSV Technologiya
Published On: Monday August 17th, 2015

Coastal Enterprises a manufacturer of Precision Board high-density urethane tooling board, will...

Coastal Enterprises, a manufacturer of Precision Board high-density urethane tooling board, will feature two new products at CAMX. Updated Precision Board with higher physical properties and improved machining characteristics is said to hold edges better and provide smoother tapers. Chip loading has also been improved, allowing concise speed and...

Company name: Coastal Enterprises
Published On: Friday August 21st, 2015

What makes Caster Concepts Poly Tread Materials Premium?

There are some fairly common characteristics among tread materials offered on industrial casters, for example 95A shore hardness is pretty much a standard offering from all manufacturers. A softer 85A shore hardness offering is also common, as is a harder poly, usually a 70D shore hardness. Shore hardness is a very common attribute that...

Company name: Caster Concepts
Published On: Monday August 17th, 2015

Die-Cut Urethane Gaskets for Harsh Environments

Interstate Specialty Products die-cuts custom gaskets made of cast urethanes for applications that require resistance to abrasion, cracking, flexing, impact, tear, and heavy loads. Examples of these strong but versatile materials include cast urethane sheets from PSI Urethanes, Inc. Die-cut urethane gaskets are available in a wide range of...

Company name: Interstate Specialty Products
Published On: Friday August 21st, 2015

SATRA has developed a new abrasive water durability test for shoes and boots.

SATRA's researchers have developed a test (TM 446:2015) to replicate the effect that abrasive substances such as sand, silt and mud have on footwear which is submerged in water. Potential applications for the TM446 include the testing of footwear for kayaking, off-road running, and military exercises.Using the SATRA STM 505 dynamic water testing...

Company name: Satra
Published On: Wednesday August 19th, 2015

Dynamic Performance Insoles- Flex-Arch Technology

Dynamic Sports Development ("DSD") announces the launch of their performance orthotic insoles featuring patent pending "Flex-Arch Technology" with a range of features that outperforms all competition at a similar price point.DSD has biomechanically designed and developed a gender and sports specific insole that features all of the following in a...

Company name: Dynamic Sports Development
Published On: Tuesday August 18th, 2015

Isocyanate exposure in the workplace: Monitoring and control

Recently, the Health and Safety Executive won a case against a paint spraying company in Derbyshire who had not complied with a number of improvement orders related to isocyanates. The defendant was fined a total of 5,600 in fines and court costs.What Are Isocyanates?First, a bit of chemistry, isocyanates are organic (carbon based) substances,...

Company name: Envirocare
Published On: Friday August 21st, 2015

Solvay acquires Cytec for USD 5.5 billion

The Brussels-based Belgian company Solvay has entered into a definitive merger agreement with Cytec Industries Inc. to acquire 100 % of its share capital. According to Solvay, the total cash consideration will amount to USD 5.5 billion, corresponding to an enterprise value of USD 6.4 billion.Headquartered in Woodland Park, NJ, USA, and with 4,600...

Company name: Cytec Industries Inc
Published On: Friday August 21st, 2015

Sanyo Chemical start the joint study on potential development of Polyols with PTT Global Chemical...

Sanyo Chemical Industries, Ltd. (Head office: Higashiyama-ku, Kyoto City; President: Takao Ando) signed a Head of Agreement (HoA) to jointly perform Front End Engineering Design (FEED) for potential development of manufacturing and sales of Polyether Polyols (Polyols) in Thailand with PTT Global Chemical Public Company, Ltd. (PTTGC) and Toyota...

Company name: Sanyo Chemical Industries
Published On: Friday August 21st, 2015

China blast warehouse on fire again

"State media say the shipping company where the explosion took place in the city of Tianjin stored dozens of flammable chemicals, including ingredients for gunpowder", NPR's Frank Langfitt reports from Tianjin. A few thousand people from the two residential buildings in question have been evacuated and were being housed in shelters set up at 10...

Company name:
Published On: Wednesday August 19th, 2015

Tianjin Explosion Creates Logistical Hurdles in Chinese Port City

The enormous blasts, which occurred late Wednesday night, have killed 50 people, including 17 firefighters."I thought it was an quake, so I rushed downstairs without my shoes on", Tianjin resident Zhang Siyu, whose home is several kilometers from the blast site, told The Associated Press in a telephone interview.However, photographs made it appear...

Company name:
Published On: Tuesday August 18th, 2015

FXI Expands Its Manufacturing Center In Baldwyn, Mississippi

FXI, a leading producer of polyurethane foams, is expanding operations at its facility in Baldwyn, Mississippi. The project represents a corporate investment of more than $700,000 and will create at least 60 jobs in Prentiss County. The company is a leading producer of innovative foam products for the home, healthcare, electronics, industrial,...

Company name: FXI Foamex Innovations
Published On: Tuesday August 18th, 2015

Polyurethane project set for detailed study

PTT Global Chemical says its board of directors has agreed for the company to proceed with a detailed study on a plan to build a US$1-billion (Bt35-billion) polyurethane complex in Rayong.PTT Global Chemical says its board of directors has agreed for the company to proceed with a detailed study on a plan to build a US$1-billion (Bt35-billion)...

Company name: PTT Global Chemical Public Company
Published On: Monday August 17th, 2015

Bioamber Sarnia inauguration recognized by Government, Industry and Media

The largest of its kind in the world, the plant's launch is being hailed as a major accomplishment, and not only for BioAmber.Politicians, industry representatives and media outlets were present in Sarnia on August 6th as BioAmber unveiled its new bio-succinic acid production facility.The opening of the BioAmber Sarnia facility is key to the...

Company name: Bioamber
Published On: Monday August 17th, 2015

Acrylamide-based crosslinking monomers, their preparation, and uses thereof

A process for preparing an acrylamide-based crosslinking monomer comprising reacting in the presence of a catalyst an isocyanate compound containing at least two isocyanate groups with one of acrylic acid or methacrylic acid. These acrylamide-based crosslinking monomers are used in the preparation of coating compositions, adhesive compositions...

Company name: Saltworks Technologies
Published On: Saturday August 22nd, 2015

Polymer polyol, method for producing the same, and method for producing polyurethane resin

A polymer polyol (I) is provided that is formed of a polyol (A), polymer particles (B) obtained by polymerization of an ethylenically unsaturated compound (b), and an active-hydrogen-containing compound (d) having an aromatic ring and having a number-average molecular weight of 150 to 2,000, wherein a content of (d) is 1 to 20% on the basis of a...

Company name: Sanyo Chemical Industries
Published On: Friday August 21st, 2015

Polyurethane (meth) acrylates using modified hydroxythiols

The invention provides intermediates of the formula: ##STR00001## as well as a method of their preparation by reacting a thiol having at least two hydroxyl groups with a mono-unsaturated organic compound in the presence of a base catalyst. A polymerizable urethane acrylate oligomer or urethane methacrylate oligomer is formed by reacting a...

Company name: Dymax Oligomers and Coatings
Published On: Saturday August 22nd, 2015

Innovative hydrophilic polyisocyanates with improved storage stability

The invention relates to innovative, water-dispersible, hydrophilic polyisocyanates and polyisocyanate mixtures, to a process for preparing them, to compositions comprising the hydrophilic polyisocyanates of the invention, and to their use as a starting component in the production of polyurethane plastics, more particularly as crosslinkers for...

Company name: Evonik Industries
Published On: Saturday August 22nd, 2015

Prepolymer impact resistor for crack-resistant adhesives for windmills

A composition is described which includes A) a chain-extended prepolymer, which can be obtained from the reaction of a) a polymer containing at least one amino, thiol or hydroxyl group, b) at least one polyisocyanate and c) at least one alkoxylated bisphenol as chain extender, and optionally d) an epoxide compound containing a primary or secondary...

Company name: Sika Technology AG
Published On: Saturday August 22nd, 2015

Ink compositions

Polyurethanes containing at least one bisphosphonate group, as well as related compositions, articles, and methods, are disclosed.

Company name: Cabot Corporation
Published On: Friday August 21st, 2015

Two-component polyurethane compositions, in particular suitable for use as tough structural...

The invention concerns two-component polyurethane compositions of a polyol component and a polyisocyanate component, the polyol component including at least one reaction product of castor oil and ketone resins with an OH number of 110 to 200 mg KOH/g, and at least one aliphatic triol, and the polyisocyanate component including at least one aromatic...

Company name: Sika Technology AG
Published On: Sunday August 23rd, 2015

Polyurethane casting compound for producing wear protection coatings in casting house applications

The present invention relates to multi-component compositions including an isocyanate component and an amine component, wherein the isocyanate component includes a prepolymer, obtainable from toluene isocyanate and a polytetramethylene polyol, and the amine component includes a dialkylthio aryl diamine and possibly a polytetramethylene oxide...

Company name: Sika Technology AG
Published On: Saturday August 22nd, 2015

Biocompatible, biodegradable polyurethane materials with controlled hydrophobic to hydrophilic ratio...

The biocompatible, biodegradable materials in the solid and/or liquid form are based on segmented linear polyurethanes and/or segmented crosslinked polyurethanes based on A) one or more biocompatible polyols susceptible to hydrolytic and/or enzymatic degradation having a molecular weight of 100 to 20,000 dalton and a number of active hydroxyl...

Company name: DePuy Synthes
Published On: Saturday August 22nd, 2015

Poly(thioketal-urethane) scaffolds and methods of use

The presently-disclosed subject matter includes biodegradable scaffolds. Exemplary biodegradable scaffolds comprise a plurality of polythioketal polymers, and a plurality of polyisocyanates, where at least one polyisocyanate is linked to at least one polymer to form the scaffold. Thus, certain embodiments of scaffolds comprise a cross-linked...

Company name: Vanderbilt University
Published On: Saturday August 22nd, 2015

Process for producing a polyurethane foam and polyurethane foam obtainable therefrom

A process for producing a polyurethane foam with bimodal cell size distribution, comprising the following steps: providing a mixture in a mixing head, where the mixture comprises: A) a component reactive towards isocyanates; B) a surfactant component; C) a blowing agent component selected from the group consisting of linear, branched or cyclic...

Company name: Bayer MaterialScience AG
Published On: Saturday August 22nd, 2015

Reaction system for producing PUR and PIR hard foam materials containing layer silicates

The invention relates to a reaction system for producing PUR and PIR hard foam materials, comprising the following components: A) a compound which is reactive towards isocyanates; B1) a surfactant component; C) a propellant in a supercritical or near-critical state; D) a polyisocyanate; and E) a layer silicate. The invention further relates to a...

Company name: Bayer MaterialScience AG
Published On: Sunday August 23rd, 2015

Rigid polyurethane foams with reduced shrinkage

A rigid polyurethane foam obtainable by mixing a) isocyanates, b) compounds having groups which are reactive toward isocyanates, c) a blowing agent, d) a catalyst, e) one or more foam stabilizer, and optionally, f) further additives to form a reaction mixture, applying the reaction mixture to a reinforcing material and curing the reaction mixture,...

Company name: BASF SE
Published On: Sunday August 23rd, 2015

Abrasion resistant polyurethane coating, coated article and method of manufacturing the same

A coated substrate including a 1 to 3 mils thick coating layer has a Bayer abrasion resistance value of less than 1% Haze after 600 cycles. The coating layer includes a reaction product of a coating composition including a polyester diol, a di-isocyanate, and a fluorocarbon-based additive. A method of forming the coating layer on the substrate...

Company name: PPG Industries Ohio, Inc.
Published On: Friday August 21st, 2015

Process for forming multilayer coating film

An object to be attained by the present invention is to provide a method for forming a multilayer coating film having excellent smoothness, distinctness of image, water resistance, adhesion, and popping resistance; moreover, the multilayer coating film has excellent water resistance and adhesion, even when the coating compositions are applied after...

Company name: Kansai Paint
Published On: Saturday August 22nd, 2015

One piece shower pan and method of making same

A one piece shower drain pan, encapsulated in a water proof membrane, and the method of fabricating the one piece open drain shower pan, the method which includes providing extruded polystyrene (XPS) foam of the type which absorbs very little water; shaping the section of extruded polystyrene foam with a CNC router to obtain the desired slope in...

Company name:
Published On: Friday August 21st, 2015

Self-cleaning coatings

The present invention provides two methods for synthesizing novel titania-polyurethane (nTiO.sub.2-PU) nanocomposites for self-cleaning coatings, one a polymer functionalization method (grafting to) and the other, a monomer functionalization method (grafting from). Here, 2,2 bis(hydroxymethyl) propionic acid (HMPA) was used as the coordination...

Company name: The University of Western Ontario
Published On: Friday August 21st, 2015

Radiation curable (meth) acrylated compounds

The present invention relates to (meth)acrylated compounds (A) prepared from (a) at least one cyclic ether polyol, (b) at least one linking compound (b1) and/or (b2), wherein the linking compound (b1) is selected from cyclic compounds (b11) containing at least one (I) group in the cycle where X=O or NH, from hydroxy acids (b12) and/or from alkylene...

Company name: Allnex
Published On: Friday August 21st, 2015

UV curable coating compositions containing aliphatic urethane acrylate resins

Described in preferred embodiments are UV curable coating compositions including a unique blend of aliphatic urethane acrylate resins. Also described are coated articles and methods for their production involving the use of the coating compositions.

Company name: Red Spot Paint & Varnish
Published On: Friday August 21st, 2015

UV/EB curable biobased coating for flooring application

A coating composition and a floor product are disclosed. The coating composition has a biobased component that includes urethane acrylate, vinyl ether, or polyester acrylate. The coating composition includes at least about 5% by weight of renewable and/or biobased component. The coating composition is radiation curable, formed by acrylating a...

Company name: AWl Licensing Company
Published On: Sunday August 23rd, 2015

Fast curing adhesive useful for bonding to glass

A composition comprising: a one part adhesive composition comprising a) one or more isocyanate functional components; b) one or more catalysts for the reaction of isocyanate groups with active hydrogen containing groups; c) one or more fillers which do not enhance the formation of voids during curing; d) one or more fillers having basic character;...

Company name: Dow Global Technologies Inc
Published On: Saturday August 22nd, 2015

Polyurea-based fabric glue

The present invention relates to a polyurea system, the use of such a polyurea system for sealing, linking, gluing, or covering of cellular tissue, and a dosing system having two chambers for a polyurea system such as this. The polyurea system comprises as components: A) an isocyanate-functioning prepolymer, which can be derived by reacting...

Company name: Medical Adhesive Revolution
Published On: Saturday August 22nd, 2015

Moisture-curing hot-melt adhesive compound containing polyaldimine

Described is moisture-reactive hot-melt adhesive compounds, including at least one polyurethane polymer P which is solid at room temperature and which has isocyanate groups, at least one polyaldimine ALD of the formula (Ia) or (Ib), and at least one acid K in the form of an organic monocarbon acid, or dicarbon acid, or an organic monosulphonic...

Company name: Sika Technology AG
Published On: Saturday August 22nd, 2015

Production and use of new thermoplastic polyurethane elastomers based on polyether carbonate polyols...

The invention relates to a method for producing a thermoplastic polyurethane elastomer, comprising the reaction of at least A) one organic diisocyanate containing two isocyanate groups with B) a polyol having a number-average molecular weight Mn>=500 and =60 and =0.9:1 and

Company name: Bayer MaterialScience AG
Published On: Saturday August 22nd, 2015

Optically clear biaxially oriented polyester film with anti-iridescent primer layer

A highly optically clear, composite film has a predominantly thermoplastic polyester base layer of A/B/C-layered structure and a polyester and polyurethane blend primer layer Preferably core layer B of the base layer is substantially particle-free polyester and outer layers A and C include organic and/or inorganic particles. The primer layer is...

Company name: Toray Plastics
Published On: Friday August 21st, 2015

Carbon fiber fabric and process for its manufacture

Woven carbon fiber, in which a polyurethane film or acrylic is joined to at least one side of this fabric. The present invention also relates to a process for the manufacture of such fabric, as well as a product of clothing or leather goods comprising this fabric.

Company name: Automobili Lamborghini
Published On: Saturday August 22nd, 2015

Polymers for contact lenses

There is provided a polyurethane xerogel prepared from a mixture comprising: (a) at least one isocyanate, (b) at least one silicone containing compound of formula J: wherein at least one group represents a hydrocarbyl group and p represents an integer of from 1 to 40, or at least one R.sub.2 group represents a hydrocarbyl group and q represents an...

Company name: Ocutec
Published On: Saturday August 22nd, 2015

Roller for feeding, conveying, and separating paper, and manufacturing method therefor

The present invention provides a paper feed/convey/separation roller in which the inner layer is firmly fixed to the outer layer without use of an adhesive and slipping between the inner layer and the outer layer is suppressed, and which ensures required running torque, and a method for producing the roller. In the paper feed/convey/separation...

Company name: Synztec
Published On: Sunday August 23rd, 2015

Method and apparatus for purging unwanted substances from air

An air filter for purging unwanted substances from air, the air filter comprising: an acid-purging stage, wherein the acid-purging stage comprises an air-permeable skeleton which has an acid-neutralizing substance mounted thereto, wherein the air-permeable skeleton comprises fiberglass fibers, open cell polyurethane foam, etc. and the...

Company name: FIPAK Research And Development Company
Published On: Friday August 21st, 2015

Cushioning support device and method of making the same

A cushioning support device and a method for making the same are disclosed. The device comprises a first polyurethane foam having a non-slip sheet attached on a surface of the first foam, a second polyurethane foam having a resting sheet attached on a surface of the second foam, and a compound pressure-redistributing body. The first and second...

Company name: Forsound
Published On: Friday August 21st, 2015

Foamed polyurethanes having improved flexing endurance properties

The present invention relates to foamed polyurethane obtainable by mixing a) polyisocyanates, b) relatively high molecular weight compounds having groups reactive toward isocyanate groups, c) solid particles, d) blowing agents, e) if appropriate, chain extender, crosslinking agent or mixtures thereof, f) if appropriate, catalyst and g) if...

Company name: BASF SE
Published On: Friday August 21st, 2015

Simulation of liquid physical blowing agents for forming rigid urethane foams

A computer‐based simulation for rigid polyurethane foam‐forming reactions was compared with experimental data for six blowing agents including methyl formate and C5‐C6 hydrocarbons. Evaporation of blowing agent was modeled as an overall mass transfer coefficient times the difference in activity of the blowing agent in the gas foam...

Company name: University of Missouri-Columbia
Published On: Monday August 24th, 2015

Environmental potential of carbon dioxide utilization in the polyurethane supply chain

Potential environmental benefits have been identified for the utilization of carbon dioxide (CO2) as feedstock for polyurethanes (PUR). CO2 can be utilized in the PUR supply chain in a wide variety of ways ranging from direct CO2 utilization for polyols as PUR precursor to indirect CO2utilization for basic chemicals in the PUR supply chain. In this...

Company name: Aachen University
Published On: Monday August 24th, 2015

New insights into the microbial degradation of polyurethanes

Frequent and frequently deliberate release of plastics leads to accumulation of plastic waste in the environment which is an ever increasing ecological threat. Plastic waste represents 2030% of the total volume of solid waste contained in landfills because in addition to the large amount of waste generated, plastic waste is recalcitrant and...

Company name: University of Jammu
Published On: Monday August 24th, 2015

Preparation and Post-Functionalization of Hyperbranched Polyurea Coatings

Postfunctionalizable hyperbranched polyurea coatings were prepared by the bulk polycondensation of AB2 monomers on preactivated silicon substrates. As previously shown, AB2 monomers were prepared, comprising a secondary amino group (A) and two blocked isocyanates (B) connected by hexyl spacers, in a single step and in quantitative yields. Covalent...

Company name: University of Alberta
Published On: Monday August 24th, 2015

Biosourced graphitic nanoparticles loaded hyperbranched polyurethane composites - Application as...

The present work reports the development of a novel nitrogen rich hyperbranched polyurethane-urea nanocomposite using bio-sourced graphitic nanoparticles as an effective filler. Initially, a nitrogen rich hyperbranched polyol is obtained by a two step polycondensation reaction between castor oil derived sebacic acid and triethanolamine. The...

Company name: Indian Institute of Chemical Technology
Published On: Monday August 24th, 2015

Structural properties and chemical bonds in double metal cyanide catalysts

Double metal cyanide (DMC) catalysts are commonly applied at industrial ring-opening polymerization of the epoxides, being the initial stage of the polyurethanes manufacturing route. This group of catalysts is frequently used in industry, but the knowledge on the molecular nature of their high activity and selectivity is limited to some...

Company name: Polish Academy of Sciences
Published On: Monday August 24th, 2015

A route toward multifunctional polyurethanes using triple click reactions

The aliphatic polyurethane with pendant alkyne, perfluorophenyl, and anthracene moieties (PU-anthracene) was prepared from polycondensation of anthracene, alkyne, and perfluorophenyl functional-diols with hexamethylenediisocyanate in the presence of dibutyltindilaurate (DBTL) in CH2Cl2 at room temperature for 10 days. Thereafter, the...

Company name: Istanbul Technical University
Published On: Friday August 21st, 2015

Salt-induced reinforcement of anionic bio-polyureas with high transparency

Bio-based polyureas (PUs) are prepared by the polyaddition of a multifunctional bio-photodimer 4,4'-diamino-α-truxillic acid having two amines and two carboxyls with an aromatic isocyanate comonomer. Weight average molecular weights of the PUs range from 2.4 x 105  to 2.5 x 105 g mol−1 with a narrow distribution...

Company name: Japan Advanced Institute of Science and Technology
Published On: Wednesday August 19th, 2015


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