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  Issue-327 - September 17, 2012   Recommend
Press Releases Patents Technical Papers
LATEST TRENDS >> PRESS RELEASES
PU RAW MATERIALS>> ADDITIVES>> SOLVENTS
Four Solvents from INVISTA’s FlexiSolv™ Product Line Listed in CleanGredients® Database

Four solvents from INVISTA’s FlexiSolv™ product line—FlexiSolv™ 2100C microemulsion concentrate, FlexiSolv™ DBE®-4 ester, FlexiSolv™ DBE®-5 ester and FlexiSolv™ DBE®-6 ester—have been recently listed in the CleanGredients® database after a third-party review by NSF International. CleanGredients®, a project of GreenBlue®, is an online database of...

Company name: FlexiSolv
Published On: Monday September 10th, 2012

 
PU RAW MATERIALS>> ADDITIVES>> FLAME RETARDANT
Alexium raises funds to develop flame retardant technology

Alexium International Group has raised A1.1m ($1.13m) in funds to progress its development work in the specialty chemical solutions area, including flame retardant (FR) treatments and FR additives.The funds were raised through a placement of 11m convertible notes with a face value of A$0.10 each, according to the company.The FR treatments...

Company name: Alexium International
Published On: Tuesday September 11th, 2012

 
PU RAW MATERIALS>> COLORANTS - COLOR PASTES
Pantone color guides make coloration easy for all color shades using liquid colors and Novopearls...

Novosystems GmbH will be presenting its Novotone Main Colors for the first time at Fakuma 2012. Novotone can create the whole Pantone range, with the additive mixing of 15 main colors. The individual colors are all those found in the Pantone range. A highlight of the system is that Novotone can be used for both liquid colors and Novopearls...

Company name: Novosystems
Published On: Tuesday September 11th, 2012

 
PU RAW MATERIALS>> CURING AGENTS - CROSSLINKERS
BASF increases prices for Neopentylglycol and Trimethylolpropane in Europe

BASF is increasing the prices of the polyalcohols neopentylglycol (NPG) and trimethylolpropane (TMP), with immediate effect or as existing contracts permit by 150 €/mt in Europe.Polyalcohols are widely used in solvent free coatings and for the production of polyurethanes, alkyd resins, unsaturated polyester resins and synthetic lubricants.

Company name: BASF
Published On: Thursday September 13th, 2012

 
PU RAW MATERIALS>> POLYOLS>> SOY BASED POLYOLS
Versatility and lower production costs drives increasing use of soy polyols in the automotive...

As oil prices continue to rise, polymer manufacturers search for alternatives using plants, food waste and renewable materials such as corn, beet, sugar cane, grain husk and sweet potatoes. Biopolymers are finding increasing application in a range of diverse applications. Soy based plastics are one such alternative. Soy-based plastics can be...

Company name: United Soybean Board
Published On: Saturday September 15th, 2012

 
PU RAW MATERIALS>> ISOCYANATES
Global MDI outlook brightens as demand rises

Signs are pointing to an improving profit picture for methyl di-p-phenylene isocyanate (MDI) producers, with prices on the upswing in the US and Asia, along with steady pricing in Europe, an analyst said on Tuesday.Frank Mitsch, analyst at US-based investment bank Wells Fargo, raised his third quarter earnings per share estimate on US-based...

Company name: ICIS Chemical Business
Published On: Thursday September 13th, 2012

 
PU RAW MATERIALS>> RESIN COMPOSITION>> RAY-CURABLE/PHOTOSENSITIVE
Cytec Announces Price Increases on its UV/EB Curable Resins Product Range in Europe, Middle East...

Cytec Industries and its affiliated companies, announced today to its customers a price increase for its Energy Curable Acrylated resins sold in Europe, Middle East and Africa.The price increase will be applicable on all shipments as of October 1st, 2012, or as contracts allow. This price increase will range from 3 to 5 % depending on the product...

Company name: Cytec Industries
Published On: Tuesday September 11th, 2012

 
SYSTEMS>> COATINGS>> SPRAYS
N.H. Spray Foam Company Partners with Lapolla Industries

Climate Shield, a leading NH spray foam and geothermal provider, has partnered with Lapolla Industries Inc. to install the manufacturer's reliable insulation products throughout New England.As licensed Lapolla insulators, Climate Shield will distribute and install the company's products to its residential, commercial, industrial and contractor...

Company name: LaPolla Industries
Published On: Tuesday September 11th, 2012

 
FOAMS>> FLEXIBLE
CertiPUR-US creates consumer education video

CertiPUR-US, a flexible polyurethane foam certification program managed by the Alliance for Flexible Polyurethane Foam in Hickory, N.C., has released a 90-second video for use by bedding manufacturers and retailers. The animated production seeks to raise awareness among consumers about the CertiPUR-US seal and convey the value of the program.The...

Company name: CertiPUR-US
Published On: Saturday September 15th, 2012

 
CASE>> COATINGS>> SPRAY FOAMS
Soythane launches new web site

Soythane announced the launch of our new comprehensive website. In the months to come, we will be consolidating our websites and their content into one, easy-to-use site. Customers will be able to access MSDS, Technical Data, Information Videos as well as purchase our products from one portal.

Company name: SoyThane Technologies
Published On: Thursday September 13th, 2012

 
Sprayroq Demos Product for Manhole Rehab in Akron, Ohio

Sprayroq Inc., a designer and manufacturer of spray-applied polyurethane technology for infrastructure rehabilitation and protection, held a demonstration of its “SprayWall” product in Akron, Ohio., on Aug. 17. The demo involved the structural rehabilitation of a sanitary sewer manhole, performed by Abel Recon, one of Sprayroq’s certified partners...

Company name: Sprayroq
Published On: Friday September 14th, 2012

 
CASE>> COATINGS>> WATER-BORNE
Waterbornes to Drive Coating Comeback

The U.S. paint and coatings market has finally been given a light at the end of the tunnel.To be sure, the light will shine brighter for some segments than others, but after four grim years, the market is now on track for a “full recovery” by the end of 2012 and a decade of “steady growth” after that, according to a new industry...

Company name: SBI
Published On: Friday September 14th, 2012

 
CASE>> ADHESIVES
ADEKIT 645: Single component adhesive mastic solvent free

AXSON Technology launches MS polymer bonding material as a new chemistry complementing relevantly a broad range of 2 component Epoxy and Polyurethane structural adhesive specialties dedicated to automotive and composites markets.

Company name: Axson
Published On: Monday September 17th, 2012

 
CASE>> ADHESIVES>> TWO COMPONENTS REACTION ADHESIVES
Perfect adhesive strength and improved occupational safety

Henkel has developed two new high-performance adhesives for repairing plastic components on vehicles and for bonding body parts. The new products are particularly low in emissions and thus offer excellent health and safety attributes.More and more automotive components – from bumpers, fenders and spoilers to the fuel flap – are made from plastics...

Company name: Henkel
Published On: Friday September 14th, 2012

 
PROCESSING EQUIPMENTS - PRODUCTION
Application Story: PR7 applies Polyurethane in Precision Potting of Switches and Connectors

Potting of connectors and switches to ensure resistance to weather and water.MOLEX is a Polish facility of international company that manufactures electrical devices. Their factory is located in the west of Poland in Sulecin. Switches and connectors produced by MOLEX require potting, which has to be done in small shots. Due to difficult-to-reach...

Company name: Molex-Poland
Published On: Thursday September 13th, 2012

 
FINISHED PRODUCTS>> CONSTRUCTING
BMS is LEED-ing the way in sustainable construction

When it comes to creating a work environment that is collaborative, cutting edge and incorporates sustainable materials and technologies, Bayer MaterialScience LLC has set the gold standard. The company’s Pittsburgh headquarters earned the Leadership in Energy and Environmental Design – Commercial Interior (LEED-CI) gold-level certification for a...

Company name: Bayer MaterialScience AG
Published On: Tuesday September 11th, 2012

 
FINISHED PRODUCTS>> MINING>> CASTERS & WHEELS
Pathway Polymers Partners with NeuMaq to Provide TyrFil® to the World’s Largest Underground Copper...

Pathway Polymers, a Chattanooga-based pioneer and industry leader in tire flatproofing solutions, recently signed an agreement with NeuMaq in Chile to provide TyrFil to El Teniente, the world’s largest underground copper mining facility.The El Teniente mine is currently operated by Codelco, a state-owned copper mining company, along with...

Company name: Pathway Polymers
Published On: Monday September 17th, 2012

 
FINISHED PRODUCTS>> FOOTWEAR
New RX Sorbo® Performance Insoles Website Launched

Announcing a new RX Sorbo website designed to make it easy to identify and order the perfect RX Sorbo Performance Insole for you. RX Sorbo Insoles feature the comfort and protection of Sorbothane®.• Easy Navigation• Detailed Product Information• Choose By Activity• Easy Ordering & Fast Deliver

Company name: Sorbothane
Published On: Friday September 14th, 2012

 
INDUSTRY UPDATE
Rim Polymers opens new Research & Development Centre at a cost of USD 1 Million

Rim Polymers Industries has newly launched our sophisticated Research and Development laboratory at our premise in Singapore head-quarter.This new ‘showroom’ has been face-lifted with all the new machines and equipment with an investment of about USD 1 million dollars. This showpiece is integrated with our Technology, After-Sales, and of course our...

Company name: Rim Polymers
Published On: Monday September 17th, 2012

 
Polyurethane Process Industries at CPI 2012

Polyurethane Process Industries will once again have a table top display at the CPI conference in Atlanta September 24-26, 2012. This year we are emphasizing our experience in the following areas:1) Complete plants to manufacture panels and garage doors with continuous and discontinuous processes2) Affordable OMS high pressure metering machines for...

Company name: Polyurethane Process Industries
Published On: Monday September 17th, 2012

 
Kingspan concludes EUR 96 million spending spree

Insulation and building materials specialist Kingspan has completed the acquisition of ThyssenKrupp Construction, Germany and Rigidal Industries, Dubai for a total cost of just over EUR 96 million.The Irish company confirmed the acquisition of ThyssenKrupp Construction Group, German steel giant ThyssenKrupp, for EUR 65 million and Dubai-based...

Company name: Kingspan
Published On: Monday September 17th, 2012

 
Solvay accelerates its development in India with the acquisition of Sunshield Chemicals

Solvay announced today that it has signed an agreement to acquire a controlling interest in Sunshield Chemicals, an Indian company specializing in surfactants, from Amit Choksey Group. This acquisition will enable Solvay’s Novecare business to accelerate growth plans in India for the home and personal care, agrochemicals, coatings and industrial...

Company name: Solvay
Published On: Friday September 14th, 2012

 
The FSK is celebrating its 50th anniversary

With an anniversary conference on technical and market issues under the motto: "Yesterday - today - tomorrow," the FSK will be celebrating its 50th anniversary on the site of and in cooperation with Evonik Industries AG on 21/22 November of this year in Essen. At the conference, in addition to interesting technical outlooks into the future as well...

Company name: FSK
Published On: Friday September 14th, 2012

 
New Camoplast Solideal Sales Division in Russia

Managed by Marcel Hrubcin, Sales Manager for Europe and CIS, and Dmitry Fedin, Commercial Director, Camoplast Solideal CIS Limited Liability Company is serving the markets in Russia and part of CIS (Commonwealth of Independent States) countries. The team has currently six members and more will be joining in a near future.This new division is...

Company name: Camoplast Solideal
Published On: Thursday September 13th, 2012

 
Vitafoam: Foam at fifty

Africa’s largest manufacturer of polyurethane foam products has been very busy extending its products, markets and technology—and supporting new businesses as part of its growth strategy.Vitafoam is 50 this year, but showing no sign of middle age as it drives forward the introduction of new technologies and manufacturing methods and brings to West...

Company name: Vitafoam Nigeria
Published On: Thursday September 13th, 2012

 
Foam Techniques Celebrating 25 years in business

As part of the companies 25th Anniversary celebrations a gala dinner has been organised by Vinay Relan (Managing Director and Executive Chairman)The event is being held to thank loyal staff past and present and business partners for contributing to the company’s success“We have been in business since 1987 and have lived through two recessions” said...

Company name: Foam Techniques
Published On: Wednesday September 12th, 2012

 
PEOPLE
Sorbothane, Inc. Adds Key Personnel As Company Expands

Sorbothane, Inc. announced here today that two pivotal corporate positions have been filled.“…the ability to attract and keep good people is instrumental to achieving 30 years of continued company growth and customer satisfaction. Robert and Daniel will fill important roles within our team”- stated David Church, President Sorbothane, Inc.Robert P....

Company name: Sorbothane
Published On: Friday September 14th, 2012

 
Greg Borst Joins Urethane Supply Company Sales Team

Greg Borst has joined the sales team of Urethane Supply Company, bringing more than 22 years of sales and management experience to his new position as upper Midwest sales representative.Borst, from Fond du Lac, Wis., most recently worked for Fond du Lac Bumper, an auto body jobber specializing in aftermarket and recycled crash parts. He worked in...

Company name: Urethane Supply
Published On: Thursday September 13th, 2012

 
 
LATEST TRENDS >> PATENTS
PU RAW MATERIALS>> CATALYSTS
Catalysts and their use

The invention relates to novel catalysts and the use thereof, for example in the preparation of polyisocyanate polyaddition products.

Company name: Bayer MaterialScience AG
Published On: Thursday September 13th, 2012

 
PU RAW MATERIALS>> CURING AGENTS - CROSSLINKERS
Methods and systems for making thiol compounds from terminal olefinic compounds

The application discloses thiol ester molecules and .alpha.-hydroxy thiol ester molecules having a thiol group located on one of the final two carbon atoms in a carbon chain or a terminal or .alpha.-hydroxyl groups, respectively. The disclosed thiol ester molecules and or .alpha.-hydroxyl thiol ester molecules es may be made from unsaturated ester...

Company name: Chevron Phillips Chemical Company
Published On: Thursday September 13th, 2012

 
PU RAW MATERIALS>> POLYOLS
Blends comprising branched poly(trimethylene ether) polyols

Disclosed are blends comprising branched poly(trimethylene ether)polyols prepared from the acid catalyzed polycondensation reaction of 1,3-propanediol, and at least one triol comonomer selected from 1,1,1-tris(hydroxymethyl)ethane and 1,1,1-tris(hydroxymethyl)propane. The blends are useful in the preparation of polyurethane rigid and flexible...

Company name: E I du Pont de Nemours & Company
Published On: Thursday September 13th, 2012

 
PU RAW MATERIALS>> RESIN COMPOSITION
Polysiloxane-modified polyhydroxy polyurethane resin, method for producing same, heat-sensitive...

Disclosed are a polysiloxane-modified polyhydroxy polyurethane resin characterized by being derived from a reaction between a 5-membered cyclic carbonate polysiloxane compound represented by the below-described formula (1) and an amine compound, and its production process; and a resin composition, thermal recording medium, imitation leather,...

Company name: Ukima Chemicals & Color
Published On: Thursday September 13th, 2012

 
SYSTEMS>> ADHESIVES>> HOT MELT
Moisture-curing hotmelt adhesives comprising at least one silane-functional polyurethane prepolymer ...

The present invention relates to moisture-curing hotmelt adhesive compositions which comprise at least one silane-functional polyurethane prepolymer of the formula (I). The compositions have neither heating nor curing bubbles and feature an exceptional viscosity stability at high temperatures. These hotmelt adhesives are therefore suitable...

Company name: Sika Technology AG
Published On: Thursday September 13th, 2012

 
SYSTEMS>> BIOMATERIALS
Long term drug delivery devices with polyurethane-based polymers and their manufacture

This invention is related to the use of polyurethane-based polymer as a drug delivery device to deliver biologically active compounds at a constant rate for an extended period of time and methods of manufactures thereof. The device is very biocompatible and biostable, and is useful as an implant in patients (humans and animals) for the delivery of...

Company name: Endo Pharmaceuticals Solutions
Published On: Thursday September 13th, 2012

 
FOAMS
Production of polyurethane foams

The invention relates to a process for producing polyurethane foams, by frothing and drying mixtures of specific polyurethane dispersions and crosslinkers.

Company name: Bayer MaterialScience AG
Published On: Thursday September 13th, 2012

 
FOAMS>> FLEXIBLE>> HYDROPHILIC FOAM
Silver-containing foam structure

A method of producing a hydrophilic polyurethane foam structure containing a silver salt, chosen from the group of silver sulphate, silver citrate, silver acetate, silver carbonate, silver lactate and silver phosphate, or a mixture of these salts includes the steps of (a) providing a water phase containing a surfactant, and at least one silver...

Company name: Molnlycke Health Care
Published On: Thursday September 13th, 2012

 
FOAMS>> RIGID
Process for the production of polyurethane rigid foams

The present invention relates to a process for the production of polyurethane rigid foams by reaction of polyisocyanates with compounds with at least two hydrogen atoms reactive with isocyanate groups in the presence of propellants.

Company name: BASF SE
Published On: Thursday September 13th, 2012

 
CASE>> COATINGS>> ROOFING
Process for the production of an underlay for roofs

A method is provided for the production of an active-breathing composite in the form of a web, consisting of a nonwoven made of synthetic material and a layer fully or mainly consisting of polyurethane for utilization as counter ceiling webs for roofs and as facade webs. PU or a mixture of materials with a high fraction of PU is heated to melting...

Company name: Ewald Doerken
Published On: Thursday September 13th, 2012

 
CASE>> ADHESIVES
Adhesive sheet and electronic component

Provided are an adhesive sheet having a conductive die attach film that is superior in semiconductor chip-holding efficiency and pick-up efficiency and an electronic component prepared by using the adhesive sheet. An adhesive sheet, including a base film, an adhesive layer laminated on one face of the base film and a die attach film containing a...

Company name:
Published On: Thursday September 13th, 2012

 
CASE>> ADHESIVES>> PRESSURE SENSITIVE
Double-sided pressure-sensitive adhesive sheet

A pressure-sensitive adhesive sheet according to the present invention is a double-sided pressure-sensitive adhesive sheet having a plastic substrate and pressure-sensitive adhesive layers provided on each side thereof. The pressure-sensitive adhesive layers are formed from a water-dispersed pressure-sensitive adhesive composition having an acrylic...

Company name: Nitto Denko Corporation
Published On: Thursday September 13th, 2012

 
CASE>> ELASTOMERS
Compositions comprising siloxane copolymers

Polyurea/urethane silicone elastomers with improved properties are obtained by addition of solid polyurea/urethane silicone low molecular weight oligomers.

Company name: Wacker Chemie AG
Published On: Thursday September 13th, 2012

 
FINISHED PRODUCTS>> CONSTRUCTING>> PANELS
Composite panel

An insulating panel (1) comprises a first sheet (2), a second sheet (3) with an insulating foam (4) therebetween. The foam may, for example be a polyurethane foam, polyisocyanurate foam or a phenolic foam. The first and second sheets (2, 3) are metal such as steel, for example a galvanised or coated sheet. At least one reinforcing element (20) is...

Company name: Kingspan Holdings
Published On: Thursday September 13th, 2012

 
FINISHED PRODUCTS>> AERONAUTIC / AEROSPACE
Apparatus and method for manufacturing an aircraft stringer

An apparatus and method of forming a stringer or an integral stringer and fuselage skin. The apparatus may be a solid bladder made of silicone, urethane, or any similar material or combination thereof. The method may comprise placing composite material onto a surface of a tooling having a channel sized and shaped to correspond to a desired stringer...

Company name: Spirit AeroSystems
Published On: Thursday September 13th, 2012

 
FINISHED PRODUCTS>> SPORTS>> GOLF
Golf ball with an ionomeric inner cover, stiff TPU intermediate cover, and cast thermoset outer...

A golf ball includes a core and a cover disposed adjacent the core. The cover includes a thermoplastic inner cover layer having a hardness between 55 and 60 Shore D; an outer cover layer having a hardness between 55 and 60 Shore D; and a non-ionomeric thermoplastic polyurethane or polyurea intermediate cover layer disposed between the inner and...

Company name: Acushnet Company
Published On: Thursday September 13th, 2012

 
FINISHED PRODUCTS>> OPTICAL MATERIALS>> LENS
Infrared absorbing eyeglass lens substrate

An infrared absorbing polarized eyeglass lens substrate includes a polarizing element including a polarizing film and a polyurethane resin material containing an infrared absorbing agent and covering both surfaces of the polarizing film, and an eyeglass lens substrate made of a polyurethane resin not containing an infrared absorbing agent and...

Company name:
Published On: Thursday September 13th, 2012

 
CHEMISTRY
Process for continuously preparing urethane-containing (meth)acrylic esters

A process for preparing urethane-containing (meth)acrylic esters (U) by reacting a urethane-containing alcohol (A) with a (meth)acrylic ester of a saturated alcohol (G) in the presence of at least one polymerization inhibitor (P) with an enzyme (E) as a catalyst in a reactor, wherein the (meth)acrylic ester of a saturated alcohol (G) and the...

Company name: BASF SE
Published On: Thursday September 13th, 2012

 
BINDERS
Polyurethane-containing grouts

Grout compositions having a binder including water-borne polyurethane and a filler are described herein. An accelerator component is provided to control the rate of grout curing, thereby decreasing the time required between grout application and grout use. This result is achieved while providing sufficient time for grout application. Grout may be...

Company name: Starquartz Industries
Published On: Thursday September 13th, 2012

 
RECYCLIBILITY
Apparatus and method for recycling scrap, including automotive interior trim scrap

Useful articles are produced from shredded post-industrial (scrap), including post-consumer automotive interior trim parts obtained from vehicles. Feedstock is shredded into a fluff and mixed with an isocyanate prepolymer adhesive composition. The mixture may be placed into a mold, onto a continuous web or between laminating rolls to cure the...

Company name: TrimaBond
Published On: Thursday September 13th, 2012

 
 
LATEST TRENDS >> PAPERS
PU RAW MATERIALS>> POLYOLS>> OTHER
Porous polyurethane foams based on recycled poly(ethylene terephthalate) for oil sorption

In using recycled poly(ethylene terephthalate) (PET) as a petroleum sorbent we tried to achieve two important objectives simultaneously. PET waste was glycolized using trimethylolpropane (TMp) or pentaerytheritol (PEr) to produce suitable polyol oligomers for polyurethane (PU) foams. The glycolysis was carried out in the presence of manganese...

Company name: Egyptian Petroleum Research Institute
Published On: Monday September 17th, 2012

 
SYSTEMS>> ADHESIVES
High‐Shear‐Strength Waterborne Polyurethane/Acrylic Soft Adhesives

Urethane/acrylic hybrid latex particles are prepared by miniemulsion polymerization for an application as soft adhesives. The polymerization of the acrylic monomers and grafting of an isocyanate functionalized PU on a hydroxyl functionalized monomer (HEMA) take place simultaneously, resulting in a complex PU/acrylic network while avoiding any...

Company name: ParisTech
Published On: Monday September 17th, 2012

 
SYSTEMS>> COATINGS>> WATER-BORNE COATINGS
Nanosilver shows antibacterial effect in waterborne 2 K PUR coating

A two-component (2 K) waterborne polyurethane coating containing nanosilver (200 ppm) was prepared and compared to the blank coating with no nanosilver. The coatings were inoculated with Escherichia coli and Staphylococcus aureus by the agar-well diffusion method. According to the results, silver nanocomposite coating exhibited a growth reduction...

Company name: Institute for Color Science and Technology
Published On: Monday September 17th, 2012

 
SYSTEMS>> BIOMATERIALS
Study on the interaction between gelatin and polyurethanes derived from fatty acids.

In this study, gelatin was blended to proprietary noncytotoxic polyurethanes (PU) derived from vegetable oils with different weight ratios, as material for the preparation of novel biomedical products. The PU/gelatin blends were characterized for their morphology through scanning electron microscopy. Mechanical and thermal properties, chemical...

Company name: Rovira i Virgili University
Published On: Monday September 17th, 2012

 
SYSTEMS>> BIOMATERIALS>> HYDROGELS
Synthesis and rheology of thermoreversible polyurethane hydrogels

Polyurethanes based on poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) triblock copolymer, succinic or citric acid, and ethyl ester L-lysine diisocyanate were synthesized and characterized by FT-IR and GPC. Wetting properties were evaluated by contact angle determinations. The critical micelle concentration was determined from...

Company name: Petru Poni Institute of Macromolecular Chemistry
Published On: Monday September 17th, 2012

 
FINISHED PRODUCTS>> FOOTWEAR>> SOLING
Durability of running shoes with ethylene vinyl acetate or polyurethane midsoles

Ethylene vinyl acetate and polyurethane are widely used materials for shoe midsoles. The present study investigated the durability of running shoes made from ethylene vinyl acetate and one type of polyurethane (polyurethane-1), which have similar hardness and density, and another type of polyurethane (polyurethane-2), which has high...

Company name: Shanghai University of Sport
Published On: Monday September 17th, 2012

 
HEALTH & SAFETY
The outcome of 9 years of consecutive patch testing with 4,4'-diaminodiphenylmethane and...

Two outbreaks of allergic contact dermatitis caused by isocyanates at two companies in southern Sweden initiated a research project focusing on contact allergy to isocyanates. Within the project, there was an interest in determining how often contact allergy to the most common isocyanate, diphenylmethane-4,4′-diisocyanate (4,4′-MDI),...

Company name: Lund University
Published On: Monday September 17th, 2012

 
CHEMISTRY
Synthesis and characterization of telechelic macromers containing fatty acid derivatives

Telechelic macromers end-capped with (meth)acrylic functionalities are the most commonly used materials in rigid, dental formulations. In order to provide higher flexibility to the final product (not necessarily for dental applications), long chain aliphatic fatty acid derivatives may be chosen. Thus, new telechelic macromers comprising methacrylic...

Company name: The West Pomeranian University of Technology
Published On: Monday September 17th, 2012

 
PDMS–Fluorous Polyoxetane–PDMS Triblock Hybrid Elastomers: Tough and Transparent with Novel Bulk...

PDMS-3F-1.1-PDMS and PDMS-3F-4.5-PDMS triblock hybrid elastomers are investigated, wherein (1) 3F-1.1 and 3F-4.5 are poly(3-methyl-3-trifluoroethoxymethyl)-1,3-propylene oxide with Mn = 1.1 or 4.5 kDa, (2) segments are linked by urethane/urea forming reactions, and (3) the intermediate PDMS-3F-PDMS aminopropyl end segments are end-capped with...

Company name: Virginia Commonwealth University
Published On: Monday September 17th, 2012

 
Modification of an urethane polymer by introducing terminal trimethoxysilyl groups and effect of...

A polyether oligomer with terminal hydroxy groups was modified in succession with 2,4-toluene diisocyanate, allyl alcohol, and trimethoxysilane (hydrosilation). The modified oligomer was vulcanized by the method used for vulcanization of organosilicon elastomers. The effect of additions of SF-2 fullerene-containing black on the mechanical...

Company name: Lebedev Research Institute of Synthetic Rubber
Published On: Monday September 17th, 2012

 
A new route of CO2 catalytic activation: syntheses of N-substituted carbamates from dialkyl...

This paper reports an effective route for the syntheses of N-substituted dicarbamates from dialkyl carbonates and polyurea derivatives, in which polyurea derivatives could be successfully synthesized from aliphatic diamines and CO2 in the absence of any catalyst. Under the optimized reaction conditions, various N-substituted carbamates were...

Company name: Chinese Academy of Science
Published On: Monday September 17th, 2012

 
 

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