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    PU2PU
  Issue-293 - January 23, 2012   Recommend
Press Releases Patents Technical Papers
LATEST TRENDS >> PRESS RELEASES
PU RAW MATERIALS
Sika announced Global Price Increase

Sika announced today a global price increase for various products from its entire product portfolio. The price increases will become effective immediately or as contracts allow.Global price adjustments are necessary due to significantly increased raw material costs and will be adapted to the regional raw material price situation. Sika’s local sales...

Company name: Sika Technology AG
Published On: Tuesday January 17th, 2012

 
PU RAW MATERIALS>> ADDITIVES>> OTHER
Plasticolors Acquires non-Urethane Pigments Business from Milliken

Plasticolors, Inc. and Milliken Design, Inc. have concluded a purchase agreement where Plasticolors has acquired Milliken Design, Inc.’s non-urethane pigment dispersion product lines. This purchase includes pigment dispersion product lines based on unsaturated polyester, epoxy, plasticizer, benzoate ester, polyurea, polyamide, and silicone...

Company name: Plasticolors
Published On: Friday January 20th, 2012

 
PU RAW MATERIALS>> ISOCYANATES
BorsodChem is targeting a price increase for MDI component products

The Polyurethanes Sales & Marketing Division of BorsodChem is targeting 150 EUR/mt of price increase for its all MDI component products in Europe and in its surrounding Emerging Markets as of 01 February 2012. The increase is supporting the need of improving re-investment economics of the products and also reflecting to the intensive upstream cost...

Company name: BorsodChem
Published On: Wednesday January 18th, 2012

 
SYSTEMS
Microbes don’t stand a chance

Bacteria are everywhere – in the air, in the water and on the ground. To make sure that microbes at least don’t spread in buildings, cleanrooms or cars, RAMPF Giessharze has developed the RAKU-PUR® 32-3276 antibacterial foam gasket, which has been certified to VDI 6022. This new, strong two-component polyurethane system reliably seals air...

Company name: RAMPF-Gruppe
Published On: Saturday January 21st, 2012

 
SYSTEMS>> COATINGS
Lapolla’s Insulation 101 Class Now Accredited by SPFA

Lapolla is proud to announce that its “Insulation 101” class is now fully accredited by the Spray Polyurethane Foam Alliance (SPFA). Students who take the class and successfully pass the exam will receive SPFA accreditation for both equipment and materials.Lapolla’s “Insulation 101” class, instructed by Ken Anderson, is offered in their new 16,000...

Company name: LaPolla Industries
Published On: Thursday January 19th, 2012

 
Bayer MaterialScience builds multipurpose plant for coating raw materials

Bayer MaterialScience has begun construction of a multipurpose production plant for polyurethane coating raw materials at Chempark Leverkusen. The products hexamethylene diisocyanate (HDI) and isophorone diisocyanate (IPDI) are used primarily for high-quality and environmentally friendly automotive and industrial coatings. The company is investing...

Company name: Bayer MaterialScience
Published On: Saturday January 21st, 2012

 
SYSTEMS>> COATINGS>> FLOORING
Oil’s Well in New DSM Coating Venture

DSM Functional Materials, the US-based developer of functional coatings, has teamed up with a Brazilian biotech firm to launch a new line of bio-based concrete floor coatings.The secret ingredient: castor oil. Yes, castor oil. The non-edible vegetable oil, that dreaded staple of childhood “regularity” campaigns, has gained favor in polyurethane...

Company name: DSM Functional Materials - UVolve Instant Floor Coatings
Published On: Friday January 20th, 2012

 
SYSTEMS>> COATINGS>> ROOFING
Tremco Roofing and Building Maintenance Introduces New Rooftop Sealer

Tremco Roofing and Building Maintenance is pleased to announce the introduction of TremSeal™ Pitch Pocket Sealer to its line of roofing products, to help protect roof surfaces, flashings, and rooftop equipment from damaging water intrusion. TremSeal Pitch Pocket Sealer solves many of the common sealing problems a contractor encounters on low-slope...

Company name: Tremco Roofing Division
Published On: Thursday January 19th, 2012

 
CASE>> ELASTOMERS>> TPU
Argotec Issues White Paper on Toll (Contract) Manufacturing of Proprietary TPU Film & Sheet

Argotec, Inc., of Greenfield Massachusetts U.S.A., one of the world’s largest manufacturers of thermoplastic polyurethane film and sheet, today issued a white paper entitled “Selecting a Toll (Contract) Manufacturer to Produce Proprietary TPU Film & Sheet.” The white paper describes:1. The need for toll manufacturers of TPU film & sheet.2. What is...

Company name: Argotec
Published On: Friday January 20th, 2012

 
FINISHED PRODUCTS>> CONSTRUCTING>> THERMAL INSULATION
Bayer MaterialScience at Debau trade fair in Essen

The housing industry is faced with the never-ending task of maintaining the value and thus the attractiveness of its real estate. Rental income should ensure the profitability of the properties while reflecting the social responsibility of the real estate companies so that the housing remains affordable.Another key challenge is improving the energy...

Company name: Bayer MaterialScience
Published On: Tuesday January 10th, 2012

 
FINISHED PRODUCTS>> AUTOMOTIVE>> SEATS
ComfortSense™ Now Offers Superior Comfort for Ventilated Seating Applications

ComfortSense™ seat cushioning is a proven approach to deliver improved initial softness, without the added expense of a secondary topper pad. This technology can be customized to offer automotive designers increased flexibility, providing a unique comfort profile with long-term performance and durability. ComfortSense™ A-surface treatments now...

Company name: The Woodbridge Group
Published On: Thursday January 19th, 2012

 
FINISHED PRODUCTS>> DECORATING AND PROTO.
ArchitecturalTrim.com Discusses Eco-Friendly Home and Commercial Building Material Trends

ArchitecturalTrim.com, the industry leader in eco-friendly and fire-resistant architectural trim products for home developers, commercial builders, property management and home owners, has identified a growing concern for the environment among the building development industry. "The building industry has been moving in the right direction of...

Company name: ArchitecturalTrim.com
Published On: Thursday January 19th, 2012

 
FINISHED PRODUCTS>> INDUSTRIAL>> CASTER & WHEELS
Solid Urethane Wheels provide quiet, smooth rolling

RWM Caster's new and improved 60D Solid Urethane Wheels are designed to offer quiet operation and rolling ease and take performance to the next level. High quality PTMEG polyurethane and extensive testing have lead to a drastic increase in performance over current industry solid poly-type wheels. These wheels offer a step up in quality, performance...

Company name: RWM Casters
Published On: Friday January 20th, 2012

 
INDUSTRY UPDATE
Simpson enters concrete repair business

Fastener maker Simpson Strong-Tie has announced the acquisition of Fox Industries, a manufacturer of cementitious, epoxy, urethane, elastomeric and polyester coatings, grouts, mortars, adhesives, sealers, sealants, and membranes and custom manufactured fiberglass parts for the marine, industrial, transportation, commercial building and public works...

Company name: Fox Industries
Published On: Friday January 20th, 2012

 
FTC Says Graco-ITW Deal Violates Anti-Trust Laws

The Federal Trade Commission is challenging Graco’s proposed $650 million acquisition of ITW Finishing from Illinois Tool Works, claiming the proposed deal to combine the makers of equipment used to apply paints and other liquid finishes would hurt competition, lead to higher prices and reduce innovation for the North American manufacturers who...

Company name: Graco
Published On: Friday January 20th, 2012

 
PTT Global Chemical Plc (PTTGC) plans to invest 100 billion baht

PTT Global Chemical Plc (PTTGC) plans to invest 100 billion baht over the next five years, half of it on recent acquisition Perstorp Holding France SAS, a technology firm and major manufacturer of isocyanates in Europe and Asia.Chief executive Veerasak Kositpaisal said the remaining investment would go mainly to expanding upstream and downstream...

Company name: PTT Global Chemical
Published On: Thursday January 19th, 2012

 
Eurofoam consolidates operations in Germany

Eurofoam has decided to consolidate its business in Germany and to stop its foaming and converting operations at the Bexbach site by June 30th, 2012. The on-going stagnation of the German foam market for mattress and upholstery industry as well as the increasing pressure on margins made it necessary to adjust the overall production capacity and...

Company name: Eurofoam
Published On: Friday January 20th, 2012

 
AkzoNobel to take 100 % control of Metlac Group

AkzoNobel plans to strengthen its position in packaging coatings by exercising the right to buy the remaining shares of Metlac, an Italian based packaging coatings producer. Financial details were not disclosed. AkzoNobel currently is a shareholder in the Packaging Coatings Metlac Group. This position was inherited from the acquisition of ICI in...

Company name: Akzo Nobel
Published On: Tuesday January 17th, 2012

 
COMPOSITES
StrataTRIM(TM) Load Floors, Deck Lids, Cargo Panels and Package Trays Now Up To 50% Lighter

StrataTRIM(TM) polyurethane composite board technology is a cost effective, lightweight solution for a variety of interior trim components, requiring high strength and good dimensional stability. Applications include: load floors, deck lids, package trays, sun shades and seat backs. This advanced approach adds value by providing synergy between the...

Company name: The Woodbridge Group
Published On: Friday January 20th, 2012

 
QUALITY CONTROL
TQC Unveils Krebs Viscosity Meter

TQC, the Dutch-based maker of paint and coatings test instruments, has introduced the Automatic Krebs Viscometer, for determining paint and coating viscosity according to Krebs KU.The TQC Automatic Krebs Viscometer is equipped with a clear display and easy user interface that ensure highly reproducible results in fully automatic measuring cycles,...

Company name: TQC
Published On: Wednesday January 18th, 2012

 
PEOPLE
Bayer welcomes new Baycusan® cosmetics polyurethane raw materials key account manager

Bayer MaterialScience LLC has appointed David Krempels key account manager, Baycusan® cosmetics ingredients line. He is based in Northern New Jersey, the primary hub of activity in the North American cosmetics industry. In this role, Krempels will drive innovative Bayer polyurethane chemistry into the cosmetics market through managing key global...

Company name: Bayer MaterialScience AG
Published On: Thursday January 19th, 2012

 
Roger Ervast has joined Lapolla Industries, Inc. as the Director of Research & Development

Ervast is an industry professional with a career spanning over 40 years focused on urethane technology including spray polyurethane foam and rigid pour systems in both construction and OEM applications. Ervast will oversee the entire laboratory facility in the Lapolla Corporate Center in Houston, TX, USA. “We are so pleased to have the added...

Company name: LaPolla Industries
Published On: Tuesday January 17th, 2012

 
 
LATEST TRENDS >> PATENTS
PU RAW MATERIALS>> ADDITIVES>> FLAME RETARDANT
Flame retardants suitable for use in viscoelastic polyurethane foams

The present invention relates to viscoelastic polyurethane foam formulations, viscoelastic polyurethane foams formed from such formulations, and products formed from the viscoelastic polyurethane foams.

Company name: Albemarle Corporation
Published On: Thursday January 19th, 2012

 
PU RAW MATERIALS>> POLYOLS
Polyoxyalkylene polyol or monool and polyurethane resin

An object of the present invention is to provide a polyoxyalkylene polyol and a polyoxyalkylene monool, capable of producing a urethane elastomer and a urethane foam which are sufficiently excellent in mechanical properties and moisture resistance. The present invention is directed to a polyoxyalkylene polyol or monool (S), which is an alkylene...

Company name: Sanyo Chemical Industries
Published On: Thursday January 19th, 2012

 
PU RAW MATERIALS>> POLYOLS>> OTHER
Monoisocyanate-acrylate monomers and products ulitilizing the same

Urethane acrylate oligomers, suitable for use in coatings and like formulations, prepared by capping polyols having hydroxyl functionality (fOH) equal to or greater than 4, using 2-isocyanatoethyl acrylate or 2-isocyanatoethyl methacrylate, thereby avoiding the gelation that normally occurs in attempting to prepare urethane acrylates with high/OH...

Company name:
Published On: Thursday January 19th, 2012

 
PU RAW MATERIALS>> ISOCYANATES
2,2'-MDI-based isocyanate mixtures, polyisocyanate polyaddition products prepared therefrom,...

Isocyanate mixtures comprising: (a) NCO prepolymers having an NCO content of 1.5 to 18 wt. %; and (b) 1 to 40 wt. % of monomeric 2,2'-diisocyanatodiphenylmethane, based on the isocyanate mixture; wherein the isocyanate mixture has a total NCO content of from 2 to 22 wt. %; polyisocyanate polyaddition products prepared therefrom; and methods of...

Company name: Bayer MaterialScience AG
Published On: Sunday January 15th, 2012

 
Process for preparing polyisocyanates by the adiabatic phosgenation of primary amines

A two-stage process for the preparation of organic isocyanates by reacting primary amines with phosgene in which: a) in a first stage, amine and phosgene are reacted in an adiabatically managed reaction, in which the temperature of reaction is restricted to values between 100 and 220.degree. C. by actively adjusting the absolute pressure in the...

Company name: Bayer MaterialScience AG
Published On: Wednesday January 18th, 2012

 
Preparation of polyisocyanates of the trimer type

The invention relates to the use of heterocycles containing trivalent phosphorus as a ring member as catalysts for isocyanate modification and to a process for preparing polyisocyanates of the trimer type.

Company name: Bayer MaterialScience
Published On: Wednesday January 18th, 2012

 
High-functionality polyisocyanates containing urethane groups

The present invention relates to new, urethane-group-containing polyisocyanates based on aliphatic and/or cycloaliphatic diisocyanates, and to their use.

Company name: BASF
Published On: Thursday January 19th, 2012

 
Method for preparing an allophanate, allophanate, and low-viscosity composition containing the...

A process for the preparation of an allophanate of one or more identical or different isocyanates, compositions obtained by the process, and uses of the compositions are disclosed. The process comprises reacting an isocyanate with at least one monoalcohol comprising an ether or polyether functional group in the presence of a bismuth-comprising...

Company name: Perstorp
Published On: Thursday January 19th, 2012

 
Process for preparing isocyanates

The invention relates to a process for preparing isocyanates by reacting the corresponding amines with phosgene in the gas phase, if appropriate in the presence of an inert medium, in which the amine and the phosgene are first mixed and converted to the isocyanate in a reactor, and in which a reaction gas which comprises isocyanate and hydrogen...

Company name: BASF
Published On: Thursday January 19th, 2012

 
SYSTEMS
Polyurethane dispersion and method for producing the same

A polyurethane dispersion is obtained by aqueously dispersing an aqueous polyurethane resin obtained by reaction of an isocyanate group-terminated urethane prepolymer with a chain extender. The isocyanate group-terminated urethane prepolymer contains an adhesive urethane prepolymer for imparting adhesion and a gas-barrier urethane prepolymer for...

Company name: Mitsui Chemicals
Published On: Thursday January 19th, 2012

 
SYSTEMS>> ADHESIVES
Laminating adhesive

A laminating adhesive includes a polyol; an acid-modified polyol obtained by reaction of a hydrophobic polyol containing a hydrocarbon moiety having 12 to 80 carbon atoms in its molecule in an amount of 30 to 95% by weight or a derivative thereof with an aromatic polycarboxylic acid anhydride and having a carboxyl group at a molecular terminal...

Company name: Mitsui Chemicals
Published On: Wednesday January 18th, 2012

 
Erosion resistant films for use on heated aerodynamic surfaces

The present disclosure provides a tape comprising: a) a single layer comprising a crosslinked polymer, selected from the group consisting of crosslinked polyurethane, crosslinked polyurea, and crosslinked mixed polyurethane/polyurea polymer, and b) an adhesive layer. In another embodiment, the disclosure provides an erosion resistant construction...

Company name: 3M Innovative Properties Company
Published On: Wednesday January 18th, 2012

 
Hot curing or heat-activated composition containing a surface-deactivated polyisocyanate

The present invention relates to curable compositions comprising at least one specific blocked amine, at least one surface-deactivated polyisocyanate that is solid at ambient temperature and optionally water or a water-producing substance. Compositions of this type are characterized by an extremely high storage stability as long as they are not...

Company name: Sika Technology AG
Published On: Thursday January 19th, 2012

 
Use of polyurethane adhesive formed from polyester diols, polyether diols and silane compounds in...

The present invention relates to the use of a polyurethane adhesive in the manufacture of film/foil-coated furniture. The adhesive consists of two components, the first component comprising at least two different polyurethanes which comprise carboxyl groups, and the polyurethanes comprising units derived from polyester diols and units derived from...

Company name: BASF SE
Published On: Thursday January 19th, 2012

 
SYSTEMS>> COATINGS
A cationic electrodeposition coating composition including amino group-containing modified epoxy...

A cationic electrodeposition coating composition including amino group-containing modified epoxy resin (A), blocked polyisocyanate curing agent (B), phenol resin (C), metal compound (D), and nitrogen oxide ion (E), wherein the metal compound (D) is contained in an amount of 10 to 10,000 ppm calculated as metal and the nitrogen oxide ion (E) is...

Company name: Kansai Paint
Published On: Tuesday January 17th, 2012

 
Hybrid coatings prepared from glycidyl carbamate resins

The invention relates to solvent-containing two-component polyurethane moisture cured hybrid sol-gel coating formulation comprising 1) an epoxy-functional binder with carbamate functionality and 2) a blended curing component comprising at least one sol gel precursor and an amine crosslinker.

Company name: NDSU Research Foundation
Published On: Wednesday January 18th, 2012

 
SYSTEMS>> COATINGS>> EMULSION
Method for formulating a reactive polyurethane emulsion

A method for production of a reactive polyurethane emulsion for use in impregnating and coating a textile fabric includes reacting polyols alone or in combination with at least one of diols and triols with a substoichiometric amount of diisocyanates so as to form medium-viscosity, OH-terminated prepolymers. The prepolymers are mixed with an...

Company name: Freudenberg Group
Published On: Thursday January 19th, 2012

 
SYSTEMS>> ELASTOMERS>> TPU OTHER
Mixtures containing thermoplastic polyurethane and acrylonitrile-styrene-acrylic ester copolymer...

Mixture (1) comprising from 1 to 40% by weight of (A) thermoplastic polyurethane based on aliphatic isocyanate and from 60 to 99% by weight of (B) acrylonitrile-styrene-acrylate copolymer (ASA) and/or acrylonitrile-ethylene homo- or copolymer-styrene (AES) material, based in each case on the total weight of the mixture (1).

Company name: BASF Aktiengesellschaft
Published On: Tuesday January 17th, 2012

 
SYSTEMS>> RIGID FOAMS
Rigid polyurethane foams with low thermal conductivity and a process for their production

Rigid closed-cell polyurethane foams with low k-factors are produced by reacting an organic polyisocyanate with an amine-based polyether polyol and a polyester polyol in the presence of a catalyst and a hydrofluorocarbon blowing agent, preferably, HFC-245fa. It is preferred that no water be added to the reaction mixture.

Company name: Bayer MaterialScience
Published On: Tuesday January 17th, 2012

 
SYSTEMS>> FLEXIBLE FOAMS
Flexible polyurethane foam and a method of producing the same

A flexible polyurethane foam is obtained by making a material containing polyols, a cross-linking agent and a polyisocyanate compound react in the presence of a catalyst, a blowing agent and an auxiliary blowing agent. At this time, the isocyanate index of the polyisocyanate compound is set to 110 to 120. Preferably, a polyol of which the hydroxyl...

Company name: Inoac
Published On: Sunday January 15th, 2012

 
Flexible polyurethane foams made from alkoxylated natural oil

The present invention provides flexible conventional polyurethane foams made from at least one polyisocyanate and at least one vegetable oil alkoxylated in the presence of a double metal cyanide (DMC) catalyst, optionally at least one non-vegetable oil-based polyol, generally in the presence of a blowing agent and optionally in the presence of a...

Company name: Bayer MaterialScience
Published On: Thursday January 19th, 2012

 
Polyurethane foam

This disclosure describes a method of making a polyurethane foam and a method of reducing NVH expected to be experienced by a substrate using the foam. When the foam is subjected to 95% relative humidity for a period of 7 days at a temperature of about 50.degree. C., the foam absorbs an amount of water that is less than about 30% of the weight of...

Company name:
Published On: Thursday January 19th, 2012

 
SYSTEMS>> FLEXIBLE FOAMS>> MOLDED FOAM
Process for the production of medium density decorative molded foams having good fire retardant...

Fire-resistant, medium density molded polyurethane foams which may be removed from a mold in substantially shorter times than previously possible are produced by the process of the present invention. These reduced de-mold times are achieved by including a solid flame retardant composition in the polyurethane foam forming composition. This solid...

Company name: Bayer MaterialScience
Published On: Monday January 16th, 2012

 
FINISHED PRODUCTS>> BEDDING
Universal bed insert, built by air mattress, combined with airtight valves, and method for producing...

The subject of the invention is a universal bed insert, built by air mattress, combined with airtight valves and method for producing thereof. The insert, produced with the application of said method makes it possible, that the sponge, the airtight covering of the sponge, and the air within the insert result in a higher level of convenience when...

Company name:
Published On: Thursday January 19th, 2012

 
FINISHED PRODUCTS>> BEDDING>> CUSHIONS
Cushion, kit and method of manufacture

There is provided a cushion (10) comprising an envelope (12) comprising at least an inner and outer layer (14, 16) of polyurethane material, and a resilient core (17) of an open-cell polyurethane foam material inside the envelope (12), wherein the envelope (12) is substantially air- and liquid-impermeable, and the inner layer (14) is at least...

Company name:
Published On: Thursday January 19th, 2012

 
FINISHED PRODUCTS>> SPORTS>> GOLF
Golf ball comprising isocyanate-modified composition

Presently disclosed embodiments concern an isocyanate-modified composition which includes A) from about 65 to about 99 weight % (based on the total weight of the isocyanate-modified composition) of a base polymer having either hydroxyl groups or amine groups or mixtures thereof, and B) from about 1 to about 35 weight % (based on the total weight of...

Company name: Taylor Made Golf Company
Published On: Tuesday January 17th, 2012

 
Polyurea and polyurethane compositions for golf equipment

Golf equipment having improved cut and shear resistance that includes a polyurea composition, preferably saturated and/or water resistant, formed of a polyurea prepolymer and a curing agent, wherein the polyurea prepolymer includes an isocyanate and an amine-terminated compound, and wherein the curing agent includes a hydroxy-terminated curing...

Company name: Acushnet Company
Published On: Thursday January 19th, 2012

 
FINISHED PRODUCTS>> MEDICAL>> WOUND DRESSING
Layered materials for use as wound dressings

The invention provides a wound dressing comprising a layered material comprising a hydrophilic foam layer formed from a first polyurethane and a hydrogel layer formed from a second polyurethane, wherein the hydrogel layer is laminated to the hydrophilic foam layer. The invention also provides methods for preparing the same.

Company name: Systagenix Wound Management
Published On: Thursday January 19th, 2012

 
FINISHED PRODUCTS>> INDUSTRIAL>> PADS
Damping polyurethane CMP pads with microfillers

A system for preparing a microcellular polyurethane material, includes a froth, prepared, for instance, by inert gas frothing a urethane prepolymer, preferably an aliphatic isocyanate polyether prepolymer, in the presence of a surfactant; a filler soluble in a CMP slurry; and a curative, preferably including an aromatic diamine and a triol. To...

Company name:
Published On: Thursday January 19th, 2012

 
CARPET BACKINGS
Polyurethane carpet backings made using fatty acid amide polyols

Polyurethane carpet backings are made using a polyurethane-forming composition that includes fatty acid amide polyols. The formulation allows a significant replacement of conventional polyols with polyols derived from annually renewable resources, while maintaining important properties like edge curl, tuftbind, viscosity and curing rates.

Company name: Dow Global Technologies
Published On: Thursday January 19th, 2012

 
CHEMISTRY
Method for producing carbonitrides by means of a polycondensation or sol-gel method using...

The present invention relates to a method for producing hydrogen-free carbon nitrides, in particular carbon nitrides of the stoichiometry C.sub.3N.sub.4. The carbon nitrides are synthesized using hydrogen-free reactants, namely inorganic isocyanates that release only CO.sub.2 when thermally treated. In particular, a way of cheaply and efficiently...

Company name:
Published On: Thursday January 19th, 2012

 
COMPOSITES
Pultruded component

A pultruded composite component includes a matrix material comprising a thermosetting polyurethane resin, and fibers provided within the resin matrix. All of the fibers within the resin matrix are oriented in substantially a single direction and the matrix material has an elongation-to-failure that exceeds that of the fibers.

Company name: Milgard Manufacturing Incorporated
Published On: Wednesday January 18th, 2012

 
 
LATEST TRENDS >> PAPERS
CASE>> ADHESIVES
Mechanical and thermal properties of eucalyptus fiber composites bonding by blocked polyurethane...

In this work, composites from eucalyptus fiber (EF) and polyurethane emulsion (PU) were prepared. Ethyl cellosolve-blocked polyisocyanate (EC-bp) was used as a novel adhesive and the mechanical and water absorption properties of the prepared composites were analyzed. The results showed that the tensile, flexural, and water resistance properties of...

Company name: Guangzhou Institute of Chemistry
Published On: Thursday January 19th, 2012

 
CASE>> ELASTOMERS
Interrelationship between ultimate mechanical properties of variously structured polyurethanes and...

The ultimate mechanical properties of polyurethane determine their possible applications under various conditions of mechanical action. The mechanical properties of nine polyurethane and polyurethane urea samples were investigated in a range of stretching rates 0.56÷0.002 s−1. A part of experiments was performed at several temperature values...

Company name: Institute of Technical Chemistry - Russia
Published On: Wednesday January 18th, 2012

 
Influence of nanosilica on the morphology, thermal and mechanical properties of polyurethane...

In this article, the influence of fumed silica nanofiller on the structure and properties of segmented polyurethane elastomer (PUR) was investigated. In order to investigate the interactions at the filler–matrix interface, nonmodified and commercially modified fillers (with methacrylsilane and octylsilane) were used. The PUR composites with 1.0,...

Company name: University of Zagreb
Published On: Friday January 20th, 2012

 
Sensitivity to the physical and chemical structure of hard‐segment‐reinforced...

A series of segmented polyurethane elastomers was achieved with similar structures but with various percentages of hydrogen bonding. The effect of the hard segment (crystallizing or not) was followed by the inclusion of a conventional rigid diisocyanate, 4,4′-diphenyl methane diisocyanate, and an isocyanate with a large conformational...

Company name: Institute of Macromolecular Chemistry Petru Poni
Published On: Thursday January 19th, 2012

 
CASE>> ELASTOMERS>> FILMS
Improved photochromic and fatigue performance of...

Improved photochromic properties and fatigue performance of (E)-dicyclopropylmethylene-(2,5-dimethyl-3-furylethylidene)-succinicanhydride doped in polyurethane thin film were discussed in this study. Fulgide 1-E doped in polyurethane polymer films was heated at various annealing temperatures. Upon irradiation with UV light (366 nm), fulgide 1-E...

Company name: King Abdulaziz University
Published On: Thursday January 19th, 2012

 
CASE>> ELASTOMERS>> TPU
Thermoplastic starch modified with polyurethane microparticles: Effects of hydrophilicity of...

It is important to chemically modify starch in an effective way. In this study, a series of polyurethane prepolymers (PUP) using 2,2-dimethylol propionic acid (DMPA) as hydrophilic chain extender was synthesized and then used to modify starch by intensive mixing to obtain modified thermoplastic starch (TPS). The structure and properties of the...

Company name: Huazhong Normal University
Published On: Thursday January 19th, 2012

 
Synergetic effect of polyamide 1212 and diisocyanate on performance improving of thermoplastic...

To improve the heat resistance of thermoplastic polyurethane (TPU), in the melt blending process polyamide 1212 (PA1212) and trace amount of 4, 4′‐diphenylmethane diisocyanate (MDI) were used as modifier and reactive solubilizer, respectively. Compared with pure TPU, the combinatorial addition of PA1212 and MDI resulted in remarkable...

Company name: CAS Key Laboratory of Engineering Plastics, Institute of Chemistry
Published On: Friday January 20th, 2012

 
FINISHED PRODUCTS>> MEDICAL
Hard‐block degradable thermoplastic urethane‐elastomers for electrospun vascular...

Thermoplastic polyurethane (TPU) elastomers with biodegradable chain extenders were synthesized and tested for mechanical performance and biocompatibility. The design of the TPUs was based on structural modification of a mechanically appropriate aromatic isocyanate‐based TPU. As the aromatic isocyanate was substituted with a less toxic but...

Company name: Vienna University of Technology
Published On: Thursday January 19th, 2012

 
COMPOSITES
Modification of vinyl ester and vinyl ester–urethane resin-based bulk molding compounds (BMC) with...

Acrylated epoxidized soybean and linseed oils of different characteristics were incorporated in the absence and presence of polymeric methylene diphenyl isocyanate (PMDI) in a vinyl ester (VE) resin-based bulk molding compound (BMC) up to 15 wt% (with respect to VE resin). The thermal, thermo-mechanical, static fracture mechanical, dynamic impact...

Company name: Kaiserslautern University of Technology
Published On: Friday January 20th, 2012

 
CHEMISTRY
Novel poly(azomethine‐urethane)s and their polyphenol derivatives derived from aliphatic...

Until now, only a few kinds of poly(azomethine-urethane)s (PAMUs) including aromatic hydroxy benzaldehyde and aminophenol compounds were obtained and studied with thermal degradation steps. However, oligo/polyphenol-based PAMUs have not been synthesized yet. In this study, some kinds of this class of PAMUs were synthesized in three steps. At the...

Company name: Çanakkale Onsekiz Mart University
Published On: Thursday January 19th, 2012

 
Synthesis and characterization of novel organosilicon-modified polyurethane

Organosilicon-modified polyurethane have been synthesized using the prepolymer method and characterized by Fourier infrared (FTIR) spectroscopy, wide angle X-ray diffraction (WAXD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), differential thermal analysis (DTA), solvent resistance analysis, and stress–strain tests. The...

Company name: China University of Geosciences
Published On: Friday January 20th, 2012

 
Linseed and soybean oil-based polyurethanes prepared via the non-isocyanate route and catalytic...

Soy- and linseed oil-based polyurethanes were prepared without using isocyanate monomers by curing carbonated soybean (CSBO) and linseed (CLSO) oils with different diamines. The conversion of the epoxidized seed oils with carbon dioxide to form cyclic carbonates was catalyzed with tetra-butylammonium bromide (TBAB) and silica-supported...

Company name:
Published On: Thursday January 19th, 2012

 
LATEXES
New route to 3-methacryloxypropyltrimethoxysilane-base organic–inorganic hybrid film

A series of poly(3-methacryloxypropyltrimethoxysilane)/waterborne polyurethane (PMPS/WPU) composite latexes and organic–inorganic hybrid films with PMPS contents of 0, 10, 20, 30, 40 and 50 wt.% were prepared via seeded emulsion polymerization initiated by AIBN and hydrolysis–condensation process of PMPS during the evaporation of water,...

Company name: University of Science and Technology of China
Published On: Thursday January 19th, 2012

 
BIOMATERIALS
Polyurethane-Based Microfluidic Devices for Blood Contacting Applications

Protein adsorption on PDMS surfaces poses a significant challenge in microfluidic devices that come in contact with biofluids such as blood. Polyurethane (PU) is often used for the construction of medical devices, but despite having several attractive properties for biointerfacing, it has not been widely used in microfluidic devices. In this work...

Company name:
Published On: Wednesday January 18th, 2012

 
 

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