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    PU2PU
  Issue-342 - January 07, 2013   Recommend
Press Releases Patents Technical Papers
LATEST TRENDS >> PRESS RELEASES
PU RAW MATERIALS>> ADDITIVES>> FLAME RETARDANT
Flame retardant linked to cancer found inside mattresses for babies

Three popular brands of baby mattresses marketed in recent months to families and day care centers contained toxic flame retardants linked to increased cancer risk, according to laboratory tests conducted for the Chicago Tribune.One member of that family of chemicals, known collectively as chlorinated tris, was removed from children's pajamas over...

Company name: the Chicago Tribune
Published On: Tuesday January 01st, 2013

 
PU RAW MATERIALS>> CURING AGENTS - CROSSLINKERS
Incorez epoxy curing agent wins award

A new waterborne epoxy curing agent recently launched by Incorez has won an award as part of a self-levelling flooring system. Incorez 148/700 was included in the Tomorrow's Flooring Product Awards 2013 winners guide. The guide showcases the top 50 flooring products for 2013 as recommended by Tomorrow's Flooring magazine.Incorez 148/700 is a water...

Company name: Industrial Copolymers
Published On: Friday January 04th, 2013

 
PU RAW MATERIALS>> CURING AGENTS - CROSSLINKERS>> ALCOHOL BASED (DIOL)
BASF increases global capacity for hexanediol

BASF will increase its annual global capacity for manufacturing the chemical intermediate 1,6-hexanediol (HDO) by more than 20 percent to more than 50,000 tons per annum by 2014. For this purpose, the company will further optimize its production processes, carry out various infrastructure projects and enhance its logistical processes. BASF will...

Company name: BASF
Published On: Monday January 07th, 2013

 
PU RAW MATERIALS>> ISOCYANATES
CIS (Russia, Ukraine, Others) MDI (Methyl Diphenyl Diisocyanate) Market is Expected to Reach USD...

According to a new market report published by Transparency Market Research (http://www.transparencymarketresearch.com) "CIS (Russia, Ukraine, Others) MDI (Methyl Diphenyl Diisocyanate) Market - Industry Analysis, Raw Material, Consumption Trends, Size, Share and Forecast, 2010 - 2018," the CIS demand for MDI was 265.9 kilo tons in 2011 and is...

Company name: Transparency Market Research
Published On: Thursday January 03rd, 2013

 
CASE>> COATINGS
Coatings Market is a Natural for Bio-Based Materials

The global coatings market is expected to reach $107 billion by 2017, according to a 2012 study by Global Industry Analysts. Reporting on the study, the Adhesives & Sealants Industry trade journal says by 2017 the industry is expected to be producing 8.7 billion gallons of product. Key drivers of growth in the market are the global economic...

Company name: Global Industry Analysts
Published On: Tuesday January 01st, 2013

 
CASE>> COATINGS>> ROOFING
All Florida Urethane Helps Customers Reduce Energy Costs With New Incentives

Local power companies often offer incentives to owners who make energy efficient improvements to their existing residential or commercial property. All Florida Urethane, a state certified roofing insulation contractor in Florida, recently announced that it does the research for owners so they can find out if they qualify.All Florida Urethane...

Company name: All Florida Urethane
Published On: Friday January 04th, 2013

 
CASE>> COATINGS>> POLYUREA
VersaFlex Launches Polyurea University

VersaFlex Inc, a leading formulator and manufacturer of protective coatings, sealants and concrete repair materials, proudly announces that they have renamed their acclaimed polyurea training school to be called Polyurea University.VersaFlex has been conducting classroom style and hands-on polyurea training schools for decades. Their acclaimed...

Company name: VersaFlex
Published On: Friday January 04th, 2013

 
Polyurea Coatings Presentation Qualifies for AIA CEU Credits

The SSPC’s annual meeting is the coating industry’s only industrial, marine, protective, and commercial coatings conference and exhibit. It will be held at the Henry Gonzalez Convention Center in San Antonio, Texas on January 14-17, 2013 and caters to over 2,000 coatings industry professionals and facility owners.Polyurea coating technology has...

Company name: The Society for Protective Coatings
Published On: Friday January 04th, 2013

 
CASE>> COATINGS>> PAINTS
McGowan Painting Contractors refurbishes two vintage aircraft

McGowan Painting Contractors of Greenville recently completed the refurbishment of two vintage aircraft for the City of Havelock.The RF-4B Phantom II was used as a reconnaissance aircraft by the Marines from the 1960s to the 1990s. The second is an HH-46 dual rotor helicopter used by the U.S. Coast Guard.Both aircraft were prepared and painted...

Company name: McGowan Painting
Published On: Tuesday January 01st, 2013

 
PROCESSING EQUIPMENTS - PRODUCTION
Onex completes acquisition of KraussMaffei Group

Toronto-based private equity firm Onex Corporation has completed its US$732 million purchase of German plastics machinery maker KraussMaffei Group.Onex officials confirmed completion of the deal in a news release dated December 28.Munich, Germany-based KraussMaffei manufactures machinery for the injection molding, extrusion and reaction process...

Company name: KraussMaffei
Published On: Friday January 04th, 2013

 
FINISHED PRODUCTS>> SPORTS>> GOLF
TaylorMade Golf Introduce the Lethal PU based Golf Ball

Moving on from the success of their Penta franchise, TaylorMade Golf has announced its next generation of golf ball – Lethal, a premium, five-piece multi-layer golf ball so named for its impressive tee-to-green performance.Our engineers set out to create a golf ball with all-around performance for all conditions, said Dean Snell, Vice President of...

Company name: Taylor Made Golf Company
Published On: Friday January 04th, 2013

 
FINISHED PRODUCTS>> PACKAGING
UFP Technologies Acquires Packaging Alternatives Corporation

UFP Technologies, Inc, a manufacturer of packaging and specialty component products, today announced the acquisition of Packaging Alternatives Corporation. Founded in 1977 and located in Costa Mesa, California, PAC is a full service designer, converter, and distributor of foam plastic products, specializing in technical polyurethane foams...

Company name: UFP Technologies
Published On: Wednesday January 02nd, 2013

 
INDUSTRY UPDATE
Trelleborg enhances manufacturing capability in the U.K.

Trelleborg is to further enhance its manufacturing capabilities with the expansion of its factory in the U.K. The multi-million pound, 3,750 meter square development of the company’s state-of-the-art manufacturing facility will see Trelleborg consolidate its two Skelmersdale-based facilities onto one site. Alongside the expansion, Trelleborg will...

Company name: Trelleborg Offshore
Published On: Friday January 04th, 2013

 
Evonik BL Comfort & Insulation hosts Germany’s largest Polyurethane Congress

The FSK (industrial union for PU foam and plastics) held its 50th anniversary conference at the Evonik production site in Essen, Germany.On November 20-22, the FSK presented the topic ‘’Polyurethane – yesterday –today –tomorrow’’. An important intention of this conference was to celebrate two jubilees at once. First, the industrial union FSK...

Company name: Evonik Industries
Published On: Thursday January 03rd, 2013

 
 
LATEST TRENDS >> PATENTS
PU RAW MATERIALS>> CURING AGENTS - CROSSLINKERS>> AMINE BASED
Novel diamine compound and production method thereof

The present invention provides a novel diamine compound represented by formula (1) below. A in formula (1) denotes an optionally-substituted divalent aliphatic group (having a carbon number of 10 or less) or an optionally-substituted divalent aromatic group (having the number of rings of 4 or less), for example. The diamine compound of the present...

Company name: Nitto Denko Corporation
Published On: Friday January 04th, 2013

 
PU RAW MATERIALS>> POLYOLS
Phosphorus-containing polycarbonate polyol, method for production thereof, and phosphorus-containing...

The phosphorus-containing polycarbonate polyol disclosed herein has a structural unit (I) represented by a formula: --OCOO-- and a structural unit (II) represented by a residue A, wherein A denotes a n-valent residue in which n of alcoholic hydroxyl groups are removed from a phosphorus compound having at least n of alcoholic hydroxyl groups, in...

Company name: Ube Industries
Published On: Friday January 04th, 2013

 
Process for producing polyol dispersions

The present invention relates to polyol dispersions comprising at least one polyol and at least one polymer particle mixture comprising at least one thermoplastic polymer (P) and at least one block copolymer (B), wherein the block copolymer (B) has at least one block which is compatible with the thermoplastic polymer (P) and at least one block...

Company name: BASF Aktiengesellschaft
Published On: Monday January 07th, 2013

 
PU RAW MATERIALS>> POLYOLS>> POLYESTER
Aromatic polyesterpolyols, isocyanurate-modified polyurethane foams, and methods of making them

Embodiments of this disclosure include, among others, polyol mixtures, methods of making a polyol mixture, methods of making a rigid isocyanurate-modified polyurethane foam, rigid isocyanurate-modified polyurethane foams, aromatic polyesterpolyols, and the like.

Company name: Invista North America
Published On: Friday January 04th, 2013

 
PU RAW MATERIALS>> ISOCYANATES
Process for the production of polyisocyanates

The invention provides a multistage process for continuously preparing organic polyisocyanates, preferably diisocyanates, more preferably aliphatic or cycloaliphatic diisocyanates, by reaction of the corresponding organic polyamines with carbonic acid derivatives and alcohols into monomeric polyurethanes of low molecular mass, and the dissociation...

Company name: BASF SE
Published On: Friday January 04th, 2013

 
PU RAW MATERIALS>> PREPOLYMERS
Functional polyurethane prepolymer, method of preparing polyurethane by using the same, and...

A method of preparing polyurethane prepolymer does not require using a toxic isocyanate monomer (manufactured by harmful phosgene) as a raw material. Epoxy resin and carbon dioxide are used as major raw materials to form cyclic carbonates to be reacted with a functional group oligomer, and then amino groups in a hydrophilic (ether group) or...

Company name: Tamkang University
Published On: Friday January 04th, 2013

 
PU RAW MATERIALS>> RESIN COMPOSITION
Resin composition comprising a cyclic carbodiimide

A resin composition which comprises a polyester and is free from a smell produced from a free isocyanate compound. The resin composition comprises a polyester (component A) whose end is modified and a compound including a cyclic structure having one carbodiimide group whose first nitrogen and second nitrogen are bonded together by a bond group...

Company name: Teijin
Published On: Friday January 04th, 2013

 
Tin-containing polyurethane resin

A tin-containing polyurethane resin having a melting temperature of 40 to 180.degree. C., measured by DSC at a heating rate of 10 K/min and prepared by carrying out a condensation reaction between a diorganotin compound and carboxyl groups of a carboxyl-functional polyurethane resin, wherein the molar ratio between the tin and the carboxyl groups...

Company name: E I du Pont de Nemours & Company
Published On: Friday January 04th, 2013

 
SYSTEMS>> ADHESIVES
Adhesive system for the direct bonding of a cured polyurethane to crude rubber

Adhesive composition usable in particular as an adhesion primer, based on a polyisocyanate compound and a polyester or vinyl ester resin comprising (in particular hydroxyl) functional groups which are reactive towards isocyanate groups of said polyisocyanate, the total number of said isocyanate groups being in excess relative to the total number of...

Company name: Michelin
Published On: Monday January 07th, 2013

 
Composition useful as an adhesive for installing vehicle windows

In one embodiment, the invention is an composition comprising: a) one or more isocyanate functional polyether polyurethane prepolymers; and b) one or more prepolymers of one or more polyisocyanates and one or more polyesters wherein the terminal groups on the polyester polyol polyurethane prepolymer are the residue of a monofunctional polyalkylene...

Company name: Dow Global Technologies
Published On: Friday January 04th, 2013

 
Fluoropolymer-silicon compounds and method for production

Composites of a fluoropolymer and an organopolysiloxane/polyurethane/polyurea adhesive exhibit strong adhesion while also offering desirable handling properties.

Company name: Wacker Chemie AG
Published On: Friday January 04th, 2013

 
SYSTEMS>> COATINGS
Fluorine coating composition

Disclosed is a two-pack fluorine coating composition which comprises a combination of: a base component comprising a fluorinated copolymer having a hydroxyl group which can be dissolved in a low-polar weak solvent even at a low temperature and; a curing agent comprising a polyisocyanate compound. Specifically disclosed is a fluorine coating...

Company name: Asahi Kasei Chemicals Corp
Published On: Friday January 04th, 2013

 
SYSTEMS>> COATINGS>> HYDROPHILIC COATINGS
Hydrophilic coating

A hydrophilic, lubricious coating for a substrate includes a first coating layer having a cross-linked polyurethane or polyurea complexed with poly(ethylene oxide) formed by reacting a mixture of an isocyanate, a polyol or polyamine, and a poly(ethylene oxide), and a second coating layer having a cross-linked polyurethane or polyurea complexed with...

Company name: C. R. Bard
Published On: Friday January 04th, 2013

 
SYSTEMS>> COATINGS>> LOW GLOSS
Low-gloss, two-component clear coats, articles of manufacture having low-gloss, two-component clear...

Low-gloss, two-component clear coats include a base resin including a urethane resin, an isocyanate resin that combines with the base resin immediately prior to application of the low -gloss, two-component clear coat to form a two-component base resin mixture, wherein the two-component base resin mixture comprises from about 20 weight percent to...

Company name: PPG Industries Ohio, Inc.
Published On: Friday January 04th, 2013

 
SYSTEMS>> COATINGS>> POLYASPARTIC COATINGS
Polyurea coatings containing silane

The present invention is directed to a polyurea coating composition formed from an amine-functional component and an isocyanate-functional component. The amine-functional component can include an aspartic ester-based amine-functional resin and a blocked primary amine. The isocyanate-functional component can include a polyisocyanate having a...

Company name: PPG Industries
Published On: Friday January 04th, 2013

 
SYSTEMS>> COATINGS>> WATER-BORNE COATINGS
Waterborne polyurethane coating compositions

Aqueous polyurethane coating compositions are disclosed in this specification. The aqueous polyurethane coating compositions contain a polycarbonate-polyurethane resin component, an aminoplast resin component, and a polyacrylic polyol component.

Company name: Bayer MaterialScience LLC
Published On: Friday January 04th, 2013

 
SYSTEMS>> SEALANTS
Polyurethane composition that contains alpha-silane and that has anisotropic material properties

A single-component, moisture-curing composition, including at least one polyisocyanate, a polyaldimine, an .alpha.-functional organoalkoxysilane, and an acid in special proportions that can be matched to one another. An exemplary composition cures by moisture as much as possible without forming bubbles. In the curing of the composition by...

Company name: Sika Technology AG
Published On: Friday January 04th, 2013

 
SYSTEMS>> ELASTOMERS>> GELS
Gels and soft elastomers made with natural oil based polyols

Embodiments of the invention provide for polyurethane gels or soft elastomers which incorporate renewable resources without compromising the physical and chemical properties of the gels or soft elastomers, such as resistance to many chemicals.

Company name: Dow Global Technologies
Published On: Thursday January 03rd, 2013

 
SYSTEMS>> BIOMATERIALS>> BIODEGRADABLE POLYMERS
Biodegradable polyurethane/urea compositions

The present invention relates to biocompatible, biodegradable polyurethane/urea polymeric compositions that are capable of in-vivo curing with low heat generation to form materials suitable for use in scaffolds in tissue engineering applications such as bone and cartilage repair. The polymers are desirably flowable and injectable and can support...

Company name: PolyNovo Biomaterials Limited
Published On: Friday January 04th, 2013

 
SYSTEMS>> COSMETIC COMPOSITIONS
Cosmetic composition comprising a supramolecular compound capable of establishing hydrogen bonds,...

The present invention relates to a cosmetic composition comprising, in a cosmetically acceptable medium, (i) a supramolecular compound that may be obtained by reaction between: --at least one oil bearing at least one nucleophilic reactive function chosen from OH and NH.sub.2, and --at least one junction group capable of establishing hydrogen bonds...

Company name: L Oreal
Published On: Friday January 04th, 2013

 
SYSTEMS>> COSMETIC COMPOSITIONS>> ORAL CARE
Chewable foams for cosmetic products

The invention relates to novel chewable foams which are useful in the oral care sector and which are based on polyurethane-polyureas, to a method for the production of these novel chewable foams, and also to use thereof.

Company name: Bayer MaterialScience AG
Published On: Friday January 04th, 2013

 
FOAMS
Polyurethane foam containing silicone

Silicone-containing polyurethane foams of low density, good pore structure, and high surface quality are prepared by reacting a branched, preferably hyperbranched silicone polyol with a polyisocyanate and a silicone resin in the presence of a reactive or non-reactive blowing agent.

Company name: Wacker Chemie AG
Published On: Friday January 04th, 2013

 
Urethane foam molded product and method for producing the same

The present invention provides a urethane foam molded product that has high thermal conductivity with minimal change to its physical properties. A simple method for producing the same is also provided. The urethane foam molded product includes a base material formed of a polyurethane foam, and a thermal conductive filler mixed in the base material...

Company name: Tokai Chemical Industries
Published On: Friday January 04th, 2013

 
CASE>> COATINGS>> WOOD FINISHES
Fire resistant wood products

The present disclosure is directed generally towards fire-resistant wood products and formulations for fire-resistant coatings. In some embodiments, the disclosure includes a fire-resistant coating comprising an aromatic isocyanate (present in a quantity ranging from about 15% to about 39%), castor oil (present in a quantity ranging from about 37%...

Company name: Weyerhaeuser
Published On: Friday January 04th, 2013

 
CASE>> COMPOSITES
Lightweight, multi-layered structural composites using recycled landfill-bound scrap

A composite structure is based on a sandwich construction and a one-step molding process. The composite structure or component comprises a core layer having two outer layers on each side of the core layer. The outer layers may be composed of automotive interior trim scrap adhered with an isocyanate adhesive composition. Core layer and outer layers...

Company name: TrimaBond
Published On: Friday January 04th, 2013

 
CASE>> COMPOSITES>> NANOMATERIALS
Method for manufacturing polyurethane nanocomposite comprising expanded graphite and composition...

Disclosed herein is a method of manufacturing a nanocomposite using expanded graphite. The method is characterized in that monomers are formed into a polymer between the plate-shaped layers of the expanded graphite, and the polymer is intercalated therebetween, so that the plate-shaped layers of the expanded graphite are completely exfoliated or...

Company name: G&CS
Published On: Friday January 04th, 2013

 
FINISHED PRODUCTS>> MEDICAL>> DRUG-ELUTING SYST.
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: Friday January 04th, 2013

 
FINISHED PRODUCTS>> OPTICAL MATERIALS>> LENS
Compositions for the preparation of composite photochromic polycarbonate lenses

Photochromic matrix compositions and tie layer compositions useful for the preparation of photochromic polycarbonate lenses are disclosed. The tie layer compositions facilitate adhesion of the photochromic matrix composition to the polycarbonate lens. The photochromic matrix compositions can contain a flexible hydrophilic dimethacrylate monomer,...

Company name: Signet Armorlite
Published On: Friday January 04th, 2013

 
FINISHED PRODUCTS>> INDUSTRIAL
Cable with injection molded coupling part

A cable which includes an injection molded coupling part which is manufactured from a polymer mixture with a thermoplastic material as polymer component, where the cable is distinguished by the fact that the casing contains thermoplastic polyurethane cross-linked by radiation. The cable has a water-tight and fixed connection between the casing of...

Company name:
Published On: Thursday January 03rd, 2013

 
FINISHED PRODUCTS>> INDUSTRIAL>> PADS
Polishing pad, method of producing the same and method of producing semiconductor device by using...

The present invention provides a polishing pad used for planarizing inter layer dielectrics and the like by CMP (chemical mechanical polishing) in the manufacturing process of a semiconductor device, a method of producing the polishing pad and a method of producing a semiconductor device by using the polishing pad. The present invention relates to...

Company name: Toyo Tire and Rubber Co
Published On: Friday January 04th, 2013

 
CHEMISTRY
Polyurethane block copolymer based on poly siloxane tenside for membranes

Oligo- or polyurethane compounds of the formula (I) wherein k and n independently are numbers from 1 to 100, m is from the range 1-100, (X) is a block of formula (II) and (Y) is a block of the formula (III), (A) is a residue of an aliphatic or aromatic diisocyanate linker, (B) is a residue of a linear oligo- or polysiloxane containing alkanol end...

Company name: Polymers CRC
Published On: Friday January 04th, 2013

 
Polymerizable composition comprising perfluoropolyether material having ethylene oxide repeat unit...

Presently is described a free-radically polymerizable composition comprising a mixture of reaction products of i) at least one polyisocyanate; ii) at least one isocyanate reactive perfluoropolyether compound; iii) at least one isocyanate reactive compound comprising greater than 6 repeat units of ethylene oxide; and iv) at least one isocyanate...

Company name: 3M Innovative Properties Company
Published On: Friday January 04th, 2013

 
Method for producing polymeric polyamines

Polymeric polyamine is produced by polymerizing polyoxyalkylene-amine and a linker. The polyoxyalkylene-amine has a structural formula H.sub.2N--R--NH.sub.2, wherein R is selected from the group consisting of dianhydride, diacid, epoxy, diisocyanate and poly(styrene-co-maleic anhydride) copolymers (SMA). The linker can be anhydride, carboxylic...

Company name: National Taiwan University
Published On: Friday January 04th, 2013

 
LAMINATES
Photochromic polyurethane laminate

A photochromic polyurethane laminate wherein the photochromic polyurethane layer of the laminate has been crosslinked with a isocyanate-active prepolymer using a crosslinking agent. The crosslinking agent is formulated to have at least three functional groups that are reactive with functional groups of the polyurethane or of the isocyanate-active...

Company name: Insight Equity
Published On: Thursday January 03rd, 2013

 
LEATHER
Kind of microfiber artificial leather and its manufacturing methods

This Invention relates to a kind of microfiber artificial leather and its manufacturing methods, namely, adopting double-pile weaving process, taking highly-strengthened filament (or other filament) as ground warp and ground weft, using sea-island polyester microfiber or other microfiber as pile warp, adopting the V-shaped or W-shaped consolidation...

Company name:
Published On: Friday January 04th, 2013

 
RECYCLABILITY
Closed-loop recycled polyurethane foam, methods of manufacture and products therefrom

The present disclosure relates to the production of molded products containing recycled content, and more particularly polyurethane foam which includes polyol recovered from chemical recycling of polyurethane foam scrap, which polyol has been treated to optimize viscosity and/or reactivity characteristics.

Company name: International Automotive Components Group North America, Inc.
Published On: Friday January 04th, 2013

 
 
LATEST TRENDS >> PAPERS
PU RAW MATERIALS>> POLYOLS>> SOY BASED POLYOLS
Synthesis of bio-based polyurethanes from epoxidized soybean oil and isopropanolamine

Epoxidized soybean oil (ESO) and isopropanolamine were used to synthesize a new polyol mixture for preparation of bio-based polyurethanes. The chemical synthetic route for reaction of ESO with isopropanolamine was analyzed by 1H-NMR. The results suggested that both ester groups and epoxy groups in ESO had reacted with amino group of...

Company name: Chinese Academy of Sciences
Published On: Monday January 07th, 2013

 
PU RAW MATERIALS>> POLYOLS>> POLYETHER
Synthesis and applications of oligoetherols with perhydro-1,3,5-triazine ring and boron

A new method of preparation of oligoetherols containing perhydro-1,3,5-triazine rings and boron atoms is presented. The oligoetherols were obtained in the reaction of 1,3,5-tris(2-hydroxyethyl) isocyanurate with boric acid followed by reaction with alkylene carbonates. The structure and physical properties of the products render them good candidate...

Company name: Rzesz�w University of Technology
Published On: Monday January 07th, 2013

 
PU RAW MATERIALS>> RESIN COMPOSITION>> PHOTOCURABLE
Synthesis and characterization of novel ultraviolet-curing polyurethane acrylate/epoxy acrylate/SiO

A series of ultraviolet-curable hybrid materials was first synthesized here by sol–gel process based on tetraethoxysilane (TEOS) and polyurethane acrylate/epoxy acrylate resin. The functional groups in the hybrid materials were investigated by infrared spectroscopy (IR) analysis. The crystallinity of the hybrid materials and polymer resin was...

Company name: Wuhan University of Technology
Published On: Friday January 04th, 2013

 
PU RAW MATERIALS>> RESIN COMPOSITION>> DISPERSIONS
Synthesis of high-solid content sulfonate-type polyurethane dispersion by pellet process

A novel method to prepare polyurethane dispersions (PUDs) is introduced in this article. Water dispersible polyurethane ionomer pellets were synthesized without solvent; these pellets were then dissolved in acetone and dispersed in water. Then PUDs were obtained after acetone was distilled off. Polyurethane ionomers were synthesized from polyether...

Company name: South China University of Technology
Published On: Friday January 04th, 2013

 
SYSTEMS>> COATINGS>> WATER-BORNE COATINGS
The physical properties of nonionic waterborne polyurethane with a polyether as side chain

A series of nonionic waterborne polyurethanes (WPU) based on hydrogenated methylene diphenylene diisocyanate, polybutylene succinate diol, polybutylene adipate diol, polyethylene glycol, and diethylene glycol as chain extender were synthesized with a polyether, MPEG-(OH)2, as side chain. The physical properties such as tensile strength, elongation,...

Company name: New Materials Institute of Shandong Academy of Science
Published On: Friday January 04th, 2013

 
SYSTEMS>> BIOMATERIALS
Effect of cinnamate comonomers on the dental formulation properties

This study reports the synthesis and characterization of two urethane dimethacrylates containing poly(ethylene oxide) or poly(propylene oxide) segment and cinnamate pendant moieties to be formulated in dental resin composites. 1H NMR, 13C NMR, and Fourier transform infrared spectroscopies, gel permeation chromatography, electrospray ionization-mass...

Company name: Petru Poni Institute of Macromolecular Chemistry
Published On: Friday January 04th, 2013

 
CASE>> COMPOSITES>> SHAPE-MEMORY
Thermomechanical and water-responsive shape memory properties of carbon nanotubes-reinforced...

Shape memory composites of hyperbranched polyurethane (HBPU) and acid-treated multi-walled carbon nanotubes (MWNTs) were prepared using an in situ polymerization method. HBPUs with different hard segments contents were synthesized via the A2 + B3 approach using poly(ethylene glycol) (PEG) as a soft segment, 4,4′-methylene...

Company name: Konkuk University
Published On: Monday January 07th, 2013

 
 

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