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    PU2PU
  Issue-328 - September 24, 2012   Recommend
Press Releases Patents Technical Papers
LATEST TRENDS >> PRESS RELEASES
PU RAW MATERIALS
Demand improves, but cost concerns remain

North American polyurethane markets are expected to perform relatively well in the medium term, despite the sluggish recovery in the overall economy, with growth across a broad range of usesPolyurethane (PU) market participants in North America are forecasting continued growth for their products in the US for 2012 and 2013, on the back of the...

Company name:
Published On: Monday September 24th, 2012

 
PU RAW MATERIALS>> RELEASE AGENTS
Release Coating 7814: Easy Release for Recylced Crumb Rubber

Release Coating 7814 is a solvent-based mold release formulated for the release of compression molded recycled crumb rubber containing a polyurethane binder. This unique blend of hydrocarbon solvents dries quickly on the mold surface, providing optimal performance and saving time for manufacturers with fast process conditions. Developed for rubber...

Company name: Huron Technologies
Published On: Thursday September 20th, 2012

 
PU RAW MATERIALS>> CURING AGENTS - CROSSLINKERS
Perstorp increases prices for TMP and Neo

Specialty chemicals company Perstorp will increase prices for Trimethylolpropane (TMP) and Neopentyl Glycol (Neo) 1 October, 2012, or as existing contracts permit.Effective October 1st, 2012 or as existing contracts permit Perstorp will increase the price for Trimethylolpropane (TMP) and Neopentyl Glycol (Neo) by EUR 150/MT in Europe and by USD...

Company name: Perstorp
Published On: Wednesday September 19th, 2012

 
PU RAW MATERIALS>> POLYOLS>> GREEN BASED POLYOLS
BioBased Technologies® Expands Agrol® Family of Polyols

BioBased Technologies® has expanded its well-known family of Agrol® polyols to include a variety of new feedstocks and a polyol specifically for flexible slabstock formulations. The company will introduce the new products, Agrol Prime™, Agrol Star™, Agrol Platinum® and Agrol™ AO+, during the Center for the Polyurethanes Industry’s Polyurethanes...

Company name: BioBased Technologies
Published On: Friday September 21st, 2012

 
PU RAW MATERIALS>> ISOCYANATES
Isocyanate investments overshadow the market

Europe's polyurethane markets improved in the first half of 2012, but there are still issues surrounding new capacity and ongoing restructuring to be tackledEurope's polyurethane (PU) producers are striving to improve profitability and pass higher costs of raw materials down the value chain to ensure the sustainability of the industry and achieve...

Company name:
Published On: Monday September 24th, 2012

 
SYSTEMS>> ADHESIVES>> BINDERS
Seminar provides introduction to polymeric binders

Unquestionably, the backbone of every coating system is the binder. Prof. Bernd Strehmel, Univeristy of Applied Science Krefeld, Germany provides a detailed overview on chemical principles and basic reactions occurring in polymer chemistry. Additionally this seminar familiarizes you with the various types of binder and their application...

Company name: European-coatings.com
Published On: Tuesday September 18th, 2012

 
SYSTEMS>> COATINGS>> SPRAYS
Thermal Barrier a Leading Spray Polyurethane Foam Application

Aldo Products Company, Inc., a North Carolina based manufacturer of reflective roof coatings, primers and sealants, and a distributor of spray polyurethane foam, is pleased to announce the addition of DC315 for Foam to its product line. DC315 is a thermal barrier coating specially formulated for application to polyurethane foam insulation.“DC315...

Company name: Aldo Products
Published On: Sunday September 23rd, 2012

 
FOAMS>> FLEXIBLE
Polyurethane is cool!

On Wednesday, 12 September, Pelma, an important producer of flexible polyurethane foam, presented an innovative and revolutionary material to the public and to the press that offers optimum temperature and humidity control: Thermofresh, a name that evokes its cooling power. The presentation took place during an open day at the Milan Triennale at...

Company name: Pelma
Published On: Friday September 21st, 2012

 
CASE>> COATINGS
PolySpec's New Product NovoRez 370

PolySpec is pleased to announce the release of their NovoRez 370 Heat Resistant Coating that is specifically formulated for immersion service in harsh environments operating at elevated temperaturesNovoRez 370 is a glass flake filled, 100% solids, fast curing epoxy novolac incorporating a nano-particle toughening agent giving us increased...

Company name: PolySpec
Published On: Wednesday September 19th, 2012

 
Sealer Protects Floors from Pounding

High-traffic industrial and commercial concrete and masonry floors have a new water-based, nano-acrylic/urethane sealing topcoat option from NewLook International. SmartSeal AU is designed to dry and cure quickly, leaving an abrasion-resistant film that provides weatherproof protection against sun, rain, most acids, industrial chemicals, oil and...

Company name: NewLook International
Published On: Friday September 21st, 2012

 
Cargo Tank Coating Offers Low-Temp Cure

Advanced Polymer Coatings, is making a significant statement at SMM 2012 (Stand B5-421), with the announcement of the 500th maritime vessel with tanks coated with MarineLine®.According to APC Chairman, Mr. Donald J. Keehan, this coating milestone was reached during 2012. MarineLine® cargo tank coatings, including the industry-leader MarineLine®...

Company name: Advanced Polymer Coatings
Published On: Sunday September 23rd, 2012

 
CASE>> COATINGS>> SPRAY FOAMS
Spray Foam Insulation and Roofing Magazine Announces Latest Issue, One-Year Anniversary

Spray Foam Insulation & Roofing Magazine is proud to announce its September/October 2012 issue is now digitally available to readers across the globe. Fittingly, the theme of this newest edition is “Spray Foam Around the World” and will feature several internationally focused articles. Furthermore, this issue marks the publication’s one-year...

Company name: Spray Foam Magazine
Published On: Tuesday September 18th, 2012

 
Bayer MaterialScience spray polyurethane foam insulation evaluated as a Type 2 insulation by...

The average temperature in Montreal, Canada swings between 23 degrees and 79 degrees Fahrenheit. Canadian architects, contractors and building owners now have another option to meet requirements under the National Building Code of Canada and provincial codes for effective, high-performance insulation in the demanding Canadian environment. EcoBay™...

Company name: Bayer MaterialScience LLC
Published On: Wednesday September 19th, 2012

 
Giving old industrial floors a new life!

Petrol stations are often burdened by traffic. Their ground surface is often contaminated by petrol and oil, and with regular oil spills, the ground is often slippery.Many entrepreneurs know the problem: their impervious floor coating is ten to fifteen years old and really worn out. Repair is useless, as not only the joints leak, but the stones are...

Company name: Quint Coating Systems
Published On: Friday September 21st, 2012

 
CASE>> ELASTOMERS>> TPU
Argotec Introduces ArgoThane D7101 Thermoformable Engineering Grade TPU Sheet

Argotec, Inc., of Greenfield, MA U.S.A., today announced the introduction of its new thermoformable ArgoThane® D7101 line of engineering-grade thermoplastic polyurethane (ETPU) sheet. This unique product offers thermoformers and converters a rigid, dimensionally stable sheet with many of the desirable performance characteristics of standard...

Company name: Argotec
Published On: Wednesday September 19th, 2012

 
NRC takes over Wanthane distribution

The Hamburg-based Nordmann, Rassmann GmbH has recently taken over the distribution of the Wanthane TPU series of Chinese Yantai Wanhua Polyurethanes Co. Ltd. There are grades based on polyether, polyester, polycaprolactone and polycarbonate available for injection moulding and extrusion applications. Available hardness ranges are Shore A 66 to 98...

Company name: Nordmann Rassmann
Published On: Wednesday September 19th, 2012

 
Successful Running of a New TPU Production Line

On August 10th, Yantai Wanhua has successfully started a new 4000t/y TPU production line, which is designed with Yantai Wanhua's own intellectual property. New production line makes the total TPU production capability increase up to 34000t/y. Yantai Wanhua will conduct another two new production lines in next two months and the total production...

Company name: Yantai Wanhua
Published On: Wednesday September 19th, 2012

 
FINISHED PRODUCTS
PUs: full speed ahead for better performance

Polyurethanes bring numerous benefits to car makers, including light weight, comfort, sound insulation, impact and wear resistance... no wonder their use is growing in the industry. Innovation is bringing new applications tooPolyurethane (PU) is one of the most versatile and diverse of all plastics. Its properties range from flexible thermoplastic...

Company name:
Published On: Monday September 24th, 2012

 
FINISHED PRODUCTS>> CONSTRUCTING>> THERMAL INSULATION
Rmax Introduces Thermasheath-SI Structural Insulation

Rmax Operating, LLC of Dallas, Texas announces the immediate availability of its Thermasheath-SI Residential Building Solution, offering structural bracing, continuous insulation, air barrier and water barrier all in one, according to Greg Fantin, Rmax Vice President of Marketing.Thermasheath-SI satisfies structural and energy code requirements,...

Company name: Rmax
Published On: Wednesday September 19th, 2012

 
FINISHED PRODUCTS>> AERONAUTIC / AEROSPACE
BASF to Display New Aerospace Materials and Technologies at Aircraft Interiors Expo Americas

BASF will display its latest technologies and materials for the aerospace market at the 2012 Aircraft Interiors Expo Americas show, which will be held at the Washington State Convention Center in Seattle from September 25 to 27, 2012.At the event, BASF will showcase its wide range of products for a variety of applications such as fire protection...

Company name: BASF
Published On: Sunday September 23rd, 2012

 
FINISHED PRODUCTS>> FOOTWEAR
Sorbothane® Insoles…30 Years of Providing Comfort & Performance

Sorbothane®, a one-of-a-kind visco-elastic polymer, was first introduced in 1982. Primary applications included the development of shock absorbing insoles for the athletic and orthopedic markets. Since 1982 – Sorbothane® insoles have been highly recommended by doctors, sports medicine specialists and professional trainers. For over 30 years...

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

 
GREEN CHEMISTRY
PU players going green

Companies are looking at opportunities in the growing renewables market, mindful of end users who want green credentials without losing performanceThe demand for renewable-based polyurethanes (PUs) continues to rise as manufacturers throughout the value chain within the automotive, footwear, carpet and even furniture sectors seek to differentiate...

Company name:
Published On: Monday September 24th, 2012

 
HEALTH & SAFETY
Sharing practice is best practice

Product stewardship and sustainability are high on the agenda at CPI, which coordinates advice and produces useful materials for companies seeking to improve their performance in these areas Producers of polyurethanes (PUs) and precursors spend much of their energy looking for ways to take a bigger piece of the market pie. But when it comes to...

Company name: the Center for the Polyurethanes Industry
Published On: Monday September 24th, 2012

 
PEOPLE
Sharon Chung Joins Emerald Kalama Chemical as Product Line Manager for K-FLEX® Products in Asia

Emerald Kalama Chemical, a business unit of Emerald Performance Materials, has announced the appointment of Sharon Chung as K-FLEX ® product line manager for Asia. Chung fills a new position to support the growing demand for the KFLEX products and will be responsible for K-Flex sales and operations throughout the region. She will be located in the...

Company name: Emerald Kalama Chemical
Published On: Tuesday September 18th, 2012

 
 
LATEST TRENDS >> PATENTS
PU RAW MATERIALS>> ADDITIVES>> FLAME RETARDANT
Process for producing flame-retardant porous materials based on polyurea

The present invention relates to a process for producing flame-retardant porous materials comprising the following steps: (a) reacting at least one polyfunctional isocyanate (a1) and at least one polyfunctional aromatic amine (a2) in an organic solvent optionally in the presence of water as component (a3) and optionally in the presence of at least...

Company name: BASF SE
Published On: Thursday September 20th, 2012

 
Reactive flame retardants blends for flexible polyurethane foams

A flexible polyurethane foam containing a flame retardant blend of at least one diester diol a ring-brominated aromatic compound and at least one epoxy resin.

Company name: Chemtura Corporation
Published On: Wednesday September 19th, 2012

 
PU RAW MATERIALS>> ISOCYANATES>> BLOCKED
Cationic blocked polyisocyanate and aqueous composition comprising the same

There are provided a blocked polyisocyanate capable of imparting long-term water resistance and water repellency to a base material, and excellent in low-temperature curability and storage stability, and an aqueous composition containing the same. [Solution] The blocked polyisocyanate has both of a blocked isocyanate group blocked with a pyrazole...

Company name: Asahi Kasei Chemicals
Published On: Thursday September 20th, 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 derived from a reaction between a 5-membered cyclic carbonate compound and an amine-modified polysiloxane compound, and its production process; and a resin composition, thermal recording medium, imitation leather, thermoplastic polyolefin resin skin material, weather strip...

Company name: Ukima Chemicals & Color
Published On: Thursday September 20th, 2012

 
PU RAW MATERIALS>> RESIN COMPOSITION>> DISPERSION
Aqueous polyurethane resin dispersion and preparation process for the same

The invention relates to an aqueous polyurethane resin dispersion having a good dispersibility in an aqueous medium and capable of forming a paint film excellent in strength when cured by ultraviolet light, and an aqueous polyurethane resin dispersion excellent in drying property, having a high hardness and being capable of providing a paint film...

Company name:
Published On: Thursday September 20th, 2012

 
Aqueous polyurethane resin dispersion, process for preparing the same and use thereof

An object is to obtain an aqueous polyurethane resin dispersion which provides a coating film having high hardness, oleic acid resistance and solvent resistance. The aqueous polyurethane resin dispersion comprises a polyurethane resin obtained by reacting (a) a polyol compound, (b) a polyisocyanate compound, (c) an acidic group-containing polyol...

Company name:
Published On: Thursday September 20th, 2012

 
SYSTEMS>> COATINGS
Chipping-resistant coating composition

The present invention provides a chipping-resistant coating composition including a hydroxyl group-containing urethane resin (A) obtained by reacting a polyol component (a) composed of a cyclic polyol compound (a1) having a nurate structure and another polyol compound (a2) with a polyisocyanate compound (b), and a curing agent (B). This...

Company name: Kansai Paint
Published On: Thursday September 20th, 2012

 
Coating composition for undercoating

To provide a coating composition for undercoating which, in forming a gas-barrier layer having a crosslinked structure between a polycarboxylic acid type polymer and polyvalent metal ions by the heating at a low temperature for a short period of time, permits polyvalent metal ions to be easily and quickly fed into the polycarboxylic acid type...

Company name: Kansai Paint
Published On: Thursday September 20th, 2012

 
Two-component polyurethane coating compositions

The invention is directed to coating compositions comprising A) at least one hydroxyl-functional and optionally acid-functional binder, preferably with an acid number of 0 to 150 mg KOH/g binder solids, B) at least one polyisocyanate curing agent with free isocyanate groups, C) at least one thermally latent tetrahydrocarbyl tin catalyst of general...

Company name: E I du Pont de Nemours & Company
Published On: Thursday September 20th, 2012

 
SYSTEMS>> COATINGS>> WATER-BORNE COATINGS
Water-borne binders for primer-surfacer coating compositions

The invention relates to water-borne coating binders ABC comprising a mixture of a curing agent C and a reaction product AB made by at least partial esterification of a hydroxyl group-containing polyester A and an acid groups-containing polyurethane B, characterised in that each of A and B comprise not more than 20% of the amount of substance of...

Company name: Cytec Surface Specialties Austria
Published On: Thursday September 20th, 2012

 
SYSTEMS>> SEALANTS
Polyurea compositions and methods of use

Disclosed are polyurea compositions comprising the reaction products of a polyformal-isocyanate prepolymer and a curing agent comprising an amine. The compositions are useful as sealants in aerospace applications.

Company name: PRC-DeSoto International
Published On: Thursday September 20th, 2012

 
Urea-bonded alkoxysilanes for use in sealants and adhesives

The invention relates to reactive, urea-bonded alkoxysilanes based on polyether block copolymers reacted with diisocyanate, said copolymers being of the structure B-A.sub.n in which the central block B consists of polyoxytetramethylene, polyoxyethylene, polybutadiene, polyisoprene, polyacrylate, polymethacrylate, polyamide, polyurethane or...

Company name: Henkel Corp
Published On: Thursday September 20th, 2012

 
FOAMS
Method for producing a polyurethane foam and polyurethane foam obtainable thereby

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 AG
Published On: Thursday September 20th, 2012

 
FOAMS>> FLEXIBLE
Process for the preparation of flexible polyurethane and foam obtained thereby

The present invention is directed to a process for the preparation of a flexible polyurethane foam and to the polyurethane foam prepared by that process. The foam is in particular a flexible polyurethane foam which has a density of between 25 and 120 kg/m.sup.3, a resilience, measured at 20.degree. C. in accordance with ASTM D 3574 H, higher than...

Company name: Recticel
Published On: Wednesday September 19th, 2012

 
FOAMS>> FLEXIBLE>> OPEN-CELL
Process to prepare open cell foams made with natural oil based polyols and poly(propylene oxide)...

Methods of forming olyurethane foams that are the reaction product of at least one polyisocyanate and a polyol composition are provided. The polyol composition includes at least one natural oil based polyol and at least one poly(propylene oxide) polyol and is desirably free of non-natural oil based polyols made from alkylene oxide units, other than...

Company name:
Published On: Wednesday September 19th, 2012

 
CASE>> COATINGS
Composite coating material and the production method of the same

The production method of the coating material comprising the steps of applying and drying liquid polyurethane (PU) material onto a release paper in order to form three polyurethane (PU) layers, rolling the composite layer and separating the release paper to form the composite coating material for covering the outer shells of electronic devices. The...

Company name:
Published On: Thursday September 20th, 2012

 
Counter-die for the cylinders of rotary die cutting machines

Specially designed to form an element that is easy and fast to install, with a long useful life and which improves the expulsion of residues after stamping, the counter-die of the invention is composed of a tubular body, divided into several parts (1-1'-1'') and joined to each other by tongue and groove joints using twisted edges (2) at the ends,...

Company name: Rotary DieCutting Montenegro
Published On: Thursday September 20th, 2012

 
CASE>> COATINGS>> SPRAY FOAMS
Vehicle flooring system

A vehicle spray flooring system is provided that includes a single-sided mold component and a spray application component that facilitates application of a liquefied mixture into the single-sided mold. The application of the liquefied mixture results in a vehicle flooring product, whereby the liquefied mixture is a combination of urethane and...

Company name: Commercial Vehicle Group
Published On: Thursday September 20th, 2012

 
CASE>> ADHESIVES>> PRESSURE SENSITIVE
Pressure-sensitive adhesive from a resin-modified polyurethene

Pressure-sensitive adhesive based on a mixture of chemically crosslinked polyurethane and at least one hydrocarbon resin, the chemically crosslinked polyurethane being a reaction product of at least one aliphatic or alicyclic polyisocyanate and a combination of at least one polypropylene glycol diol and one polypropylene glycol triol, reacted with...

Company name: tesa
Published On: Thursday September 20th, 2012

 
CASE>> ADHESIVES>> LAMINATES
Curable resin composition, transparent laminate using the same, and process for producing the...

To provide a transparent laminate having a pair of transparent substrates integrated via an adhesive layer, in which the adhesive layer has good tear resistance and good adhesion to the transparent substrates and has excellent transparency. In a first atmosphere, a sealed space having a curable resin composition 14 accommodated between a pair of...

Company name: Asahi Glass Company
Published On: Thursday September 20th, 2012

 
CASE>> ELASTOMERS>> TPU
Thermoplastic polymer blends comprising crosslinked polar olefin polymers in a thermoplastic...

Polymer blends comprising a first phase comprising a thermoplastic polyurethane matrix and a second phase comprising a crosslinked polar olefin polymer are provided. The first phase is a continuous phase and the second phase can be co-continuous with the first phase, or dispersed as a non-continuous phase in the first phase. The first phase further...

Company name:
Published On: Thursday September 20th, 2012

 
Thermoplastic polymer blends comprising dynamically crosslinked polyurethane in an olefin polymer...

Compatibilized blends comprising a first phase comprising a thermoplastic olefin polymer and a second phase comprising a crosslinked, thermoplastic polyurethane are provided. The first phase is a continuous phase and the second phase can be co-5 continuous with the first phase, or dispersed as a non-continuous phase in the first phase. The blends...

Company name:
Published On: Thursday September 20th, 2012

 
FINISHED PRODUCTS>> AUTOMOTIVE>> AIRLESS TIRES
Non-pneumatic tire with annular spoke reinforcing web

A non-pneumatic tire is provided with an annular reinforcing web that reduces the bending of compression spokes formed in the tire and reduces stresses and strains in the tire. The non-pneumatic tire includes an inner hoop member having an inner surface that defines the inner diameter of the tire, and an outer hoop member having a tread groove...

Company name: Chemtura Corporation
Published On: Thursday September 20th, 2012

 
FINISHED PRODUCTS>> PRINTING>> DEVELOPING ROLLER
Developing roller

A developing roller including: an electrically-conductive base; an elastic layer formed on an outer circumference of the electrically-conductive base; and a toner bearing layer formed on the elastic layer, wherein the toner bearing layer contains a polyurethane resin having an isocyanurate structure, and wherein the polyurethane resin has a ratio...

Company name:
Published On: Thursday September 20th, 2012

 
FINISHED PRODUCTS>> SPORTS
Method of manufacturing a sport ball

A sport ball may include a casing and a bladder. The casing may form at least a portion of an exterior surface of the ball. The bladder may be located within the casing and formed from a plurality of polymer bladder elements joined along abutting edges to form a sealed and valveless structure that encloses a pressurized gas. In some configurations,...

Company name: Nike
Published On: Thursday September 20th, 2012

 
FINISHED PRODUCTS>> SPORTS>> GOLF
Golf ball with a non-ionomeric inner cover, stiff tpu intermediate cover, and cast thermoset outer...

A golf ball including a core and a cover disposed about 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 stiff intermediate cover layer disposed between the inner and outer cover layers and having a hardness greater...

Company name:
Published On: Thursday September 20th, 2012

 
FINISHED PRODUCTS>> MEDICAL>> WOUND DRESSING
Wound dressing, and method and production line of producing the wound dressing

A wound dressing (1;15;18) comprising a polyurethane film sheet (2;19) having a wound facing side (3) and an opposite side (4). The wound facing side (3) has a peripheral rim zone (5) provided with an adhesive (6) or an adhesive means (16), the peripheral rim zone (5) encircles a central sheet part (11) free of adhesive (6) or adhesive means (16),...

Company name: Pharmaplast
Published On: Thursday September 20th, 2012

 
FINISHED PRODUCTS>> OPTICAL MATERIALS>> LENS
Thermoplastic polyurethane lenses with a specified weight percentage of urethane repeating units

A method of forming thermoplastic polyurethane (TPU) into an optical lens. Suitable TPUs contain urethane (--NHCOO--) repeating units that are present in at least 23% by weight. This range of urethane weights is an indicator of a flexural modulus above 1,400 MPa. The TPUs have refractive indices above 1.54 and Abbe numbers above 27. They have glass...

Company name: Essilor International
Published On: Wednesday September 19th, 2012

 
 
LATEST TRENDS >> PAPERS
PU RAW MATERIALS>> ADDITIVES>> ANTIOXIDANTS
Blooming of Irganox 3114® antioxidant onto a medical grade elastomer. Impact of the...

Studying the blooming and recrystallization of additives onto the surface of polymer medical devices is of a great interest because it can affect the biocompatibility of the material. The polymorphism of a phenolic antioxidant (Irganox 3114®) used as an additive in medical devices and pharmaceutical packaging was studied: two different polymorphs...

Company name: Université Paris-Sud
Published On: Monday September 24th, 2012

 
PU RAW MATERIALS>> REINFORCEMENTS
Reinforcement of Polyether Polyurethane with Dopamine-Modified Clay: The Role of Interfacial...

Dopamine-modified clay (D-clay) was successfully dispersed into polyether polyurethane (PU) by solvent blending. It is found that the incorporation of D-clay into PU gives rise to significant improvements in mechanical properties, including initial modulus, tensile strength, and ultimate elongation, at a very low clay loading. The large...

Company name: Nanyang Technological University
Published On: Monday September 24th, 2012

 
SYSTEMS>> ADHESIVES>> HOT MELT
Study of the synthesis and bonding properties of reactive hot‐melt polyurethane adhesive

Reactive hot-melt polyurethane adhesive (RHMPA) is moisture-curing polyurethane (PU) adhesive whose main component is an isocyanate-terminated PU prepolymer that can be cured after application by reaction with ambient moisture. Two series of RHMP-containing poly(tetramethylene glycol) (PTMG) of different molecular weights and different degrees of...

Company name: Beijing Institute of Technology
Published On: Monday September 24th, 2012

 
SYSTEMS>> BIOMATERIALS
Zinc oxide-doped poly(urethane) spider web nanofibrous scaffold via one-step electrospinning: a...

Zinc oxide (ZnO) nanostructures have been commonly studied for electronic purposes due to their unique piezoelectric and catalytic properties; however, recently, they have been also exploited for biomedical applications. The purpose of this study was to fabricate ZnO-doped poly(urethane) (PU) nanocomposite via one-step electrospinning technique....

Company name: Chonbuk National University
Published On: Monday September 24th, 2012

 
CASE>> ELASTOMERS>> TPU
Properties of recycled polycaprolactone‐based thermoplastic polyurethane filled with...

The properties of recycled low temperature biodegradable polycaprolactone-based thermoplastic polyurethane (rTPU), filled with different types of organically modified montmorillonite (MMT) prepared by two-roll milling, were studied. The dependence of rTPU properties on the mastication time and clays content was determined by various structural and...

Company name: Kaunas University of Technology
Published On: Monday September 24th, 2012

 
CHEMISTRY
Multi-Block Polyurethanes via RAFT End-Group Switching and Their Characterization by Advanced...

The detailed characterization of poly(styrene)-b-poly(tetrahydrofuran) (pS-b-pTHF) multiblock copolymers (17800 g mol–1 ≤ Mn ≤ 46800 g mol–1) generated via urethane linkages is presented. The synthesis of the block copolymers is enabled via a mechanistic switch of the thiocarbonyl thio end group of a poly(styrene) to dihydroxyl...

Company name: Karlsruhe Institute of Technology
Published On: Monday September 24th, 2012

 
BIODEGRADABILITY
Biodegradable Poly(ester–urethane–amide)s Based on Poly(ε-caprolactone) and Diamide–Diol Chain...

Twenty seven poly(ester–urethane–amide)s (PEUAs) were synthesized from the reaction of α,ω-telechelic poly(ε-caprolactone) diols, 1,6-hexamethylene diisocyanate, and three different diamide–diol chain extenders derived from ε-caprolactone and three aliphatic diamines with increasing length (n = 2, 4, and 6). The hard segment...

Company name: Instituto de Ciencia y Tecnolog�a de Pol�meros
Published On: Monday September 24th, 2012

 
 

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