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    PU2PU
  Issue-354 - April 02, 2013   Recommend
Press Releases Patents Technical Papers
LATEST TRENDS >> PRESS RELEASES
PU RAW MATERIALS>> ADDITIVES
New additives for sealants & adhesives

Incorez, a global manufacturer of oxazolidines, waterborne epoxy curing agents and waterborne polyurethane dispersions, has introduced two high performance additives for use in sealants and adhesives. The two new products, Incozol BH and Incorez STP, were launched at the European Coatings Show 2013 to give customers an insight into the range of...

Company name: Incorez
Published On: Friday March 29th, 2013

 
PU RAW MATERIALS>> ADDITIVES>> FLAME RETARDANT
Office workers carry biomarker of potentially harmful flame retardant, study finds

A flame retardant removed from children's pajamas 30 years ago but now used in polyurethane foam is prevalent in office environments, especially in older buildings, where urine testing of workers turned up widespread evidence of its biomarker, a new study led by Boston University School of Public Health researchers has found. The study, published...

Company name: Boston University
Published On: Tuesday March 26th, 2013

 
EPA to Review Flame Retardants

The EPA says it will assess 23 commonly used chemicals, with a specific focus on flame retardant chemicals, to ascertain any potential risks to people’s health and the environment.This effort is part of the Toxic Substances Control Act Work Plan that identifies commonly used chemicals for risk assessment.Americans are often exposed to flame...

Company name: the Environmental Protection Agency
Published On: Tuesday April 02nd, 2013

 
PU RAW MATERIALS>> ADDITIVES>> ANTIOXIDANTS
Albemarle to increase the price of ETHANOX 4703 antioxidant

Albemarle Corporation, a leading developer and manufacturer of antioxidants for lubricants, petroleum and biodiesel fuels, announced today that it will increase the price of ETHANOX® 4703 on all shipments globally by $0.95/kg effective immediately, or as contracts allow.ETHANOX antioxidants enhance the stability, improve the performance and extend...

Company name: Albemarle Corporation
Published On: Tuesday March 26th, 2013

 
PU RAW MATERIALS>> ISOCYANATES>> MDI
New MDI capacity could face delays – US Huntsman

Delays in adding new capacity for methyl di-p-phenylene isocyanate (MDI) could be longer than what the market is expecting, the head of US-based Huntsman said on Monday.Several companies have plans to add MDI capacity in China and the Middle East, as well as other parts in the world.In all, the announcements represent about 44% of 2012 MDI...

Company name: Huntsman Polyurethanes
Published On: Monday April 01st, 2013

 
PU RAW MATERIALS>> ISOCYANATES>> TDI
China Cangzhou Dahua to Complete TDI Expansion Design in 2013

China Cangzhou Dahua Juhai Company has pushed its TDI expansion project into preparatory stage by announcing in recent days it will complete TDI expansion project design within this year.The Company is undergoing technical and commercial negotiations and tendering agency for its 30,000 tons/year TDI expansion project at 50,000 tons/year TDI plant...

Company name: Cangzhou Dahua
Published On: Wednesday March 27th, 2013

 
SYSTEMS>> BIOMATERIALS
DSM signs new license to supply Bionate® II PCU for use in SpineVision’s® Flex+2™ Dynamic Lumbar...

License provides SpineVision® with clinically proven polyurethane biomaterial to enhance flexibility and compression in posterior lumbar pedicle screw systemsDSM, a global leader in biomedical materials science, today announced that the company has signed a license and supply agreement with spinal implant and surgical systems developer,...

Company name: DSM Biomedical
Published On: Thursday March 28th, 2013

 
CASE>> COATINGS
BASF opens new coatings technical competence center for ASEAN’s growing automotive market

BASF has set up a new Coatings Technical Competence Center ASEAN in Bangkok, Thailand. This new facility supports technical and laboratory activities mainly in motorcycle coatings including technology transfer, product development, performance testing, color design and development, and houses a sales and marketing team as well as a technical...

Company name: BASF Asia Pacific
Published On: Tuesday March 26th, 2013

 
CASE>> COATINGS>> ROOFING
SWD Urethane Announces SPF Roofing Certification Training

As part of the SPFA Professional Certification program , SWD is proud to offer trainings and prep seminars for contractors and installers.The training is designed to offer hands-on training, including spray technique, troubleshooting, and equipment maintenance. At the end of each day, students will have the opportunity to take the test for the SPFA...

Company name: SWD Urethane
Published On: Friday March 29th, 2013

 
CASE>> COATINGS>> SPRAY FOAMS
Home's Fifty-Foot Dome Feature Insulated With Spray Polyurethane Foam

Some new home features can be particularly challenging to insulate, especially when they are difficult to reach. Toronto-based spray foam contractor, Foam It Spray Foam Insulation, recently insulated a newly constructed 20,000 sq. ft. home. The project called for installing SPF insulation to the structure's building envelope, which included a dome...

Company name: Foam It
Published On: Tuesday April 02nd, 2013

 
CASE>> COATINGS>> PAINTS
Antifouling Made to Ease Maintenance

Protective coatings maker Jotun has released SeaLion Resilient, a high-performance marine coating based on epoxy-polysiloxane technology.The biocide-free, low-VOC emissions formulation combines "a compound of resins and hardeners that provides highly resilient hull protection" with Jotun's own fouling-release technology, according to the...

Company name: Jotun
Published On: Monday April 01st, 2013

 
CASE>> ELASTOMERS>> TPU
Materialise Launches New Flexible & Durable TPU Material for Laser Sintering

Materialise is proud to announce the official launch of a new, highly flexible and durable material for 3D Printing: TPU 92A-1. Designers and engineers have been challenging Materialise to come up with a flexible 3D Printing material that is durable enough to withstand the wear and tear of an end-use product, and TPU is their response. The most...

Company name: Materialise
Published On: Tuesday March 26th, 2013

 
Yantai Wanhua Expands TPU Production Capacity to 50,000 Metric Tons

With the strong demand of global TPU market, Yantai Wanhua continues to enhance its TPU production capacity in 2013, which will reach as high as 50,000MT/A, further consolidating the leading position of Wanthane® TPU in Asia & Pacific region.After four TPU production lines started up smoothly last year, Wanhua will put a new TPU production line...

Company name: Yantai Wanhua
Published On: Tuesday March 26th, 2013

 
CASE>> COMPOSITES
General Plastics to Exhibit at ICERP Composites Conference in India April 4-6, 2013

General Plastics Manufacturing Company will be participating in the International Conference and Exhibition on Reinforced Plastics (ICERP 2013) in Mumbai, India, April 4-6, 2103. It will be exhibiting with its distribution partner, Polymer Technologies at booth #C7. The companies will spotlight General Plastics’ premier LAST-A-FOAM® FR-4500 Tooling...

Company name: General Plastics
Published On: Friday March 29th, 2013

 
CASE>> COMPOSITES>> PULTRUSION
Polyurethane pultrusion: Next-gen equipment

According to Jeff Martin, CEO of Martin Pultrusion Group (MPG, Oakwood Village, Ohio), pultrusion with polyurethanes (PU) — with some initial equipment investment and processing tweaks — can be done on existing pultrusion equipment. Each die requires a machined injection box (for high-volume applications that incorporate dense layers of rovings and...

Company name: Martin Pultrusion Group
Published On: Tuesday April 02nd, 2013

 
Pultruding polyurethane: Sheet pilings break boundaries

For years the composite industry and its material suppliers have been working to develop pultruded composite sheet piles that could replace wood, steel and concrete structures in commercial sea walls, retaining walls and erosion-control systems. Composite pilings made with polyester and vinyl ester resins offer clearly superior characteristics in...

Company name: Martin Pultrusion Group
Published On: Tuesday April 02nd, 2013

 
PROCESSING EQUIPMENTS - PRODUCTION
Cutting-edge technologies and solutions from a single source

RAMPF Dosiertechnik, part of the international RAMPF Group, is exhibiting the DC-CNC 800 low-pressure mixing and dispensing system at the trade fair CHINAPLAS 2013 from 20 - 23 May in Guangzhou, China. The com-pact dispensing cell will use RAKU-PUR® Speed Technology to apply a foam gas-ket from RAMPF Giessharze on site – true to the motto:...

Company name: RAMPF Dosiertechnik
Published On: Wednesday March 27th, 2013

 
FINISHED PRODUCTS>> CONSTRUCTING
BASF presents insulation solutions to support sustainable development of China’s construction...

BASF, the world’s leading chemical company, highlighted its leading insulation solutions at the 9th International Conference on Green and Energy-Efficient Building & New Technologies and Products Expo 2013 (IGEBC), which opened at the Beijing International Convention Center today. BASF showed its commitment to continuous innovation in low-carbon...

Company name: BASF Asia Pacific
Published On: Tuesday April 02nd, 2013

 
FINISHED PRODUCTS>> AERONAUTIC / AEROSPACE
Ultra-light Solar Impulse plane set to take Flight Across America

Solar Impulse - an ultra-lightweight, solar-powered plane, capable of flying day and night – is set to take Flight Across America with the help of diverse material innovations and technologies from Bayer MaterialScience. The plane will start its cross-country flight in San Francisco, stopping off in Phoenix and Dallas before landing in Washington,...

Company name: Bayer MaterialScience LLC
Published On: Friday March 29th, 2013

 
FINISHED PRODUCTS>> MEDICAL
Innovations in Plastics Drive Past, Present and Future Medical Care

Ever stop and look around during a doctor or hospital visit? Even a cursory look reveals dozens of medical instruments and hygienic tools made with plastics: protective examination gloves, sterile bandages and gauze, syringes that help prevent infection, IV tubes and bags that guard against contamination—all made possible by plastics.Frankly,...

Company name:
Published On: Thursday March 28th, 2013

 
INDUSTRY UPDATE
Polyurethane Foam Association widens reach with international membership category

In a bid to provide access to industry news and advocacy issues and unify the flexible polyurethane foam industry in the Americas, the members of the Polyurethane Foam Association (PFA) have just established a federated membership category for flexible polyurethane foam (FPF) manufacturers with production facilities exclusively outside the U.S....

Company name: Polyurethane Foam Association
Published On: Tuesday April 02nd, 2013

 
Evonik Goldschmidt Corp. sponsoring teacher 'job shadowing' program

Evonik Goldschmidt Corp. has implemented an innovative "job shadowing" program to educate teachers and students about good, high-paying jobs offered by industries in the area that don't require a college degree.Dr. Reinhold Brand, president of Evonik Goldschmidt, said he is certain the program will provide teachers in the Hopewell Public School...

Company name: Evonik Goldschmidt
Published On: Friday March 29th, 2013

 
Hellas Construction Addresses Overwhelming Demand For EpiQ TRACKS™ Products, Expands Roxie Polymers...

Recently, Hellas Construction setup a new satellite location to house its growing fleet of sports facility construction and installation equipment, as well as company-owned transportation vehicles. The fleet and vehicles previously resided at Roxie Polymers, Hellas Construction’s running track and polyurethane production plant, but were moved to...

Company name: Roxie Polymers
Published On: Thursday March 28th, 2013

 
China Yantai Wanhua Higher Net Profit in 2012, Pulled by MDI Increases

China Yantai Wanhua has achieved a turnover of 15.9 billion CNY in 2012 and net profit was assessed at 2.35 billion CNY, increasing by 16.7% and 26.7% year on year, according to the company’s statement to Shanghai Stock Exchange on Mar.23.In the forth quarter of 2012, Wanhua’s earning per share (EPS) was RMB 0.32 while loss was about 170 million...

Company name: Yantai Wanhua Polyurethanes
Published On: Wednesday March 27th, 2013

 
Successful year 2012 for Repi

The Italian colour dispersion and additive manufacturer Repi S.p.A. with headquarters in Lonate Ceppino announced that 2012 has been the third consecutive record year for the company. Against all pessimistic forecast for the Italian economy, the company says it remains optimistic also for 2013.“Our growth is basically generated by our export...

Company name: REPI SpA
Published On: Wednesday March 27th, 2013

 
INVISTA acquires US-based flame resistant apparel company

INVISTA has acquired Ashburn Hill Corp., associated intellectual property—including the TECGEN® brands—and a manufacturing operation in Texas. The TECGEN® flame resistant garment products expand INVISTA’s existing performance and protective fabric offerings, as well as add a new skillset to the company.“INVISTA has an aggressive growth strategy...

Company name: Invista
Published On: Tuesday March 26th, 2013

 
North America featured in Global PUR magazine

With our privileged position at the start of the value chain, it’s sometimes hard to get polyurethane innovation the respect it deserves on the world stage. That’s why BASF developed its customer-facing magazine, Global PUR, and we’re proud to share that BASF Polyurethanes North America’s work is featured in two stories in the latest issue....

Company name: BASF Polyurethanes
Published On: Tuesday March 26th, 2013

 
 
LATEST TRENDS >> PATENTS
PU RAW MATERIALS>> POLYOLS
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:
Published On: Thursday March 28th, 2013

 
PU RAW MATERIALS>> ISOCYANATES
Alkoxysilane functionalized isocyanate based materials

Alkoxysilane functionalized isocyanate based materials of low viscosity prepared by reacting in any possible order of addition an organic polyisocyanate with an isocyanate-reactive compound and an amino-functional alkoxysilane of formula I R-HN-R.sup.1-Si-(OR.sup.2).sub.3-x(R.sup.3).sub.x (I) wherein R represents a group with electron withdrawing...

Company name: Huntsman International LLC
Published On: Thursday March 28th, 2013

 
PU RAW MATERIALS>> RESIN COMPOSITION
Radiation curable sealing agent composition and member with sealing layer

An photo-curable sealing agent composition comprising (A) an unsaturated group-containing urethane resin having a number average molecular weight of 1,000-100,000 and an unsaturation degree of 0.1-1 mol/kg, which is obtained by reaction of (a) a polycarbonate diol having a number average molecular weight of 500-3,000, (b) a bifunctional epoxy...

Company name: Huntsman International LLC
Published On: Thursday March 28th, 2013

 
SYSTEMS>> ADHESIVES
High adhesive acrylate monomer and method for preparing the same

A high adhesive acrylate monomer has a specific chemistry figure. This monomer may be easily prepared in a simplified way, and various linkers may be used between L-DOPA and an acrylate group attached to a tail of L-DOPA, so molecular weight and size of the entire material may be easily controlled. Also, various kinds of acrylate to be combined to...

Company name: LG Chem
Published On: Thursday March 28th, 2013

 
Toughened epoxy adhesive composition

The invention is an epoxy resin based adhesive composition comprising an epoxy resin and a compound comprising an elastomeric prepolymer residue selected from the group of a polyurethane, a polyurea and a polyurea polyurethane having isocyanate end groups, the isocyanate end groups of said prepolymer residue being capped by a capping compound...

Company name: Dow Global Technologies Inc
Published On: Thursday March 28th, 2013

 
Urethane resin, actinic energy ray curable adhesive, and back protective sheet for solar cell

An actinic energy ray curable adhesive contains a urethane resin (D) and a epoxy resin (E). The urethane resin (D) is prepared by reacting a diol ingredient (A1) having no (meth)acryloyl group, an optional diol ingredient (A2) having no (meth)acryloyl group, no carbonate structure and no alicyclic structure, a polyol ingredient (B) having a...

Company name: Toyo Ink
Published On: Thursday March 28th, 2013

 
SYSTEMS>> ADHESIVES>> DISPERSIONS
Aqueous one-component dispersion primer for the adhesion of plastic films by means of dispersion...

The invention relates to the use of a one-component aqueous polyurethane dispersion composition (PD) as a primer for the adhesion of plastic films (KF) by means of an aqueous one-component polyurethane dispersion adhesive (DK). The aqueous polyurethane dispersion composition (PD) comprises a polyurethane (P1) and carbodiimide groups and/or carboxyl...

Company name: Sika Technology
Published On: Thursday March 28th, 2013

 
SYSTEMS>> ADHESIVES>> TWO-COMPONENTS
Controlled cure aliphatic laminating adhesive using non-migrating blocking agents for organometallic...

A two component polyurethane adhesive composition having one or more polyols as a first component and one or more isocyanates as a second component. The composition also comprises a catalyst and a hydroxyalkyl-8-hydroxy quinoline blocking agent to delay the initial part of the curing reaction. The blocking agent links to the adhesive matrix during...

Company name: Henkel
Published On: Thursday March 28th, 2013

 
SYSTEMS>> ADHESIVES>> PRESSURE SENSITIVE
Multi-layer assembly, multi-layer stretch releasing pressure-sensitive adhesive assembly, and...

A multi-layer assembly that includes a release liner, a first layer disposed on the release liner, the first layer including a pressure-sensitive adhesive composition that includes a silicone polymer that includes silicone polyurea block copolymers, polydiorganosiloxane polymers, or combinations thereof, a second layer disposed on the first layer,...

Company name: 3M Innovative Properties Company
Published On: Thursday March 28th, 2013

 
SYSTEMS>> SEALANTS
Adhesive and sealant systems

Adhesive and sealant systems Adhesive and sealant systems on the basis of unsaturated polyester resins, epoxy resins, polyurethane, silane-terminated polymers, vinyl ester resins, acrylates, polyvinyl acetate, polyvinyl alcohol, polyvinyl ethers, ethylene-vinyl acetate, ethylene-acrylic acid copolymers, polyvinyl acetates, polystyrene, polyvinyl...

Company name: Evonik Degussa GmbH
Published On: Thursday March 28th, 2013

 
Sulfur-containing polyureas and methods of use

Disclosed are sulfur-containing polyurea compositions and methods of using the compositions as sealants, particularly as low specific-gravity aerospace sealants.

Company name: PRC-DeSoto International
Published On: Friday March 29th, 2013

 
SYSTEMS>> SEALANTS>> SEALANT (ONE-COMPONENT)
Polyurethane composition that contains organomethoxysilane and has anisotropic material properties

A single-component, moisture-curing composition, including at least one polyisocyanate, a polyaldimine, an organomethoxysilane, an acid as well as a tin catalyst 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
Published On: Thursday March 28th, 2013

 
SYSTEMS>> BIOMATERIALS
Bioabsorbable polymers from bioabsorbable polyisocyanates and uses thereof

Novel bioabsorbable and/or biocompatible polyurethanes, polyureas, polyamideurethanes and polyureaurethanes with tunable physical, mechanical properties and hydrolytic degradation profiles are provided for use in biomedical applications such as stents, stent coatings, scaffolds, foams, and films. The disclosed polymers may be derived from...

Company name: Bezwada Biomedical
Published On: Thursday March 28th, 2013

 
FOAMS
Process for the production of high air flow polyether foams and the foams produced by this process

This invention relates to novel polyol blends, a process for preparing foams with very low resistance to air flow from certain polyol blends and to the resultant foams. The polyol blends comprise one or more monofunctional polyethers having a hydroxyl number of less than 28; one or more polyether polyols having a hydroxyl number of 20 to 240 and...

Company name: Bayer MaterialScience
Published On: Thursday March 28th, 2013

 
FOAMS>> FLEXIBLE
Resilient, water dispersible polyurethane foams and products incorporating same

A soft and resilient, cold-water dispersible polyurethane foam suitable for disposable personal care products is produced by the combination of corn syrup, glycerin, polyether diamine, PEG, a diisocyanate, water and a catalyst. The formulation and reaction conditions for forming the inventive foam are judiciously selected and carefully controlled...

Company name: Georgia-Pacific Consumer Products
Published On: Thursday March 28th, 2013

 
Single layer flexible foam including polyurethane gel

A single layer flexible foam includes the reaction product of an (A) isocyanate component and a (B) isocyanate-reactive component. The isocyanate component and the isocyanate-reactive component react in the presence of a (C) polyurethane gel. The polyurethane gel has a viscosity of from about 3,000 to about 12,000 cps at 25.degree. C. and includes...

Company name: BASF SE
Published On: Friday March 29th, 2013

 
CASE>> ADHESIVES>> LAMINATES
Laminate of an acrylic resin composition layer containing triazine based ultra-violet compounds and...

It is an object of the present invention to provide a laminate having excellent weatherability and abrasion resistance as well as adhesion. The present invention relates to a laminate comprising a base, a first layer formed by thermally curing an acrylic resin composition and a second layer formed by thermally curing an organosiloxane resin...

Company name: Teijin
Published On: Thursday March 28th, 2013

 
CASE>> ADHESIVES>> DISPERSIONS ADHESIVES
Articles comprising nonpolar polyolefin and polyurethane, and methods for their preparation and use

The adhesion between a low surface energy (i.e., nonpolar) material, e.g., a polyolefin such as polyethylene, and a high surface energy (i.e., polar) material, e.g., a polyester, polyurethane, polycarbonate or polylactic acid, is promoted by blending with the nonpolar material typically from 15 to less than 50 wt % of a diol-based thermoplastic...

Company name: Dow Global Technologies Inc
Published On: Thursday March 28th, 2013

 
CASE>> SEALANTS
Isocyanate-free insulated glass sealant and insulated glass units using the same

An insulated glass sealant includes an elastomeric matrix that is the reaction product of a carboxyl-terminated polymer and a polycarbodiimide. A method of sealing an insulated glass unit includes applying the insulated glass sealant to one or more glass sheets, a spacer to be disposed between the glass sheets, or both; and contacting the one or...

Company name: Cray Valley
Published On: Thursday March 28th, 2013

 
CASE>> ELASTOMERS
Polyisobutylene-based polyurethanes

An elastomeric polymer, comprising (1) a hard segment in the amount of 10% to 60% by weight of the elastomeric polymer, wherein the hard segment includes a urethane, urea or urethaneurea; and (2) a soft segment in the amount of 40% to 90% by weight of the elastomeric polymer. The soft segment comprises (a) at least 2% by weight of the soft segment...

Company name:
Published On: Thursday March 28th, 2013

 
CASE>> ELASTOMERS>> FILMS
Laminated polyester film

The present invention provides a polyester film which can be suitably used as an antireflective film, an optical film, etc., and comprises a coating layer capable of exhibiting excellent easy-bonding property and weather-resistant bonding property to various topcoat agents. The laminated polyester film of the present invention comprises a coating...

Company name: Mitsubishi Plastics
Published On: Thursday March 28th, 2013

 
CASE>> COMPOSITES
Composites, method for preparation of same and flying sails containing them

This invention relates to a composite comprising two polyurethane films, identical or different, that are connected to one another and between which a reinforcement mesh and at least one textile reinforcement thread oriented according to at least one predetermined stress line is inserted. The invention also relates to sails including such a...

Company name: Porcher Industries
Published On: Thursday March 28th, 2013

 
Semifinished product for the production of fibre composite components based on stable polyurethane...

The invention relates to a semifinished product for the production of fibre composite components, comprising at least two walls of fibre-filled matrix material, which are angled in a meandering manner and are thermally joined to one another to form a symmetrical core structure. The invention addresses the problem of providing a semifinished product...

Company name: Evonik Degussa GmbH
Published On: Thursday March 28th, 2013

 
FINISHED PRODUCTS>> PRINTING>> CLEANING ROLLER
Cleaning roller for cleaning image bearing member

A cleaning roller has a core and a polyurethane foam layer covering the core to form a peripheral surface of the cleaning roller adapted to be in contact with a peripheral surface of the toner image bearing member. The polyurethane foam is designed so that the number of cell per inch thereof is 30 or more and 60 or less and an open ratio of cell...

Company name: Konica Minolta
Published On: Thursday March 28th, 2013

 
FINISHED PRODUCTS>> INDUSTRIAL
Elevator rope

An elevator rope including a rope main body; and a covering resin layer that covers the periphery of the rope main body and comprises a molded product of a composition which composition is produced by mixing a thermoplastic polyurethane elastomer, a thermoplastic resin other than the thermoplastic polyurethane elastomer and an isocyanate compound...

Company name: Mitsubishi Electric
Published On: Thursday March 28th, 2013

 
FINISHED PRODUCTS>> INDUSTRIAL>> HOSES
Hose coupling and hose

The hose includes an outer jacket which includes warp and weft fibers made of Vectran.RTM.. The process for making the hose, includes: forming an inner liner and coating the exterior thereof with adhesive; weaving, in a twill weave pattern, Vectran.RTM. yarn, in a repeating 2-4-2-4-2 pattern in both the warp and the weft directions; extruding...

Company name: All-American Hose
Published On: Thursday March 28th, 2013

 
FINISHED PRODUCTS>> INDUSTRIAL>> PADS
Polishing pad, production method for same, and production method for glass substrate

A polishing pad having a polishing layer comprising a thermoset polyurethane foam, wherein about the thermoset polyurethane foam, the Asker C hardness value thereof is 82 or less as a 60-second value, the hardness value being a value after the foam is immersed in water for 24 hours, and further the value of the tensile storage modulus E'...

Company name: Toyo Tire and Rubber Co
Published On: Thursday March 28th, 2013

 
CHEMISTRY
Processes for producing aryl carbamates, isocynates and polyureas using diaryl carbonate

A preparation of aryl carbamates can be achieved readily by carbonylation of an aromatic polyamine compound with diphenyl carbonate (DPC) using a combination of an organic acid and a tertiary amine as a catalyst. Aryl carbamate can be converted into 4,4'-diphenylmethane diisocyanate (MDI) by heating it at about 200 to about 230.degree. C. in a...

Company name: National Chung Hsing University
Published On: Thursday March 28th, 2013

 
Process for producing polyamides via anionic polymerization

The present invention relates to a process for producing polyamides, preferably crosslinked polyamides, via anionic polymerization of lactams in the presence of an anionic catalyst and of a caprolactam-capped polyisocyanate, where said isocyanate comprises more than 3.5 capped isocyanate groups.

Company name:
Published On: Thursday March 28th, 2013

 
Method for producing carbamate, method for producing isocyanate, carbamate production system, and...

A method for producing carbamate including a urea production step; a carbamate-forming step: an ammonia separation step of absorbing the gas with water in the presence of carbonate to produce a gas absorption water, and separating ammonia; an aqueous alcohol solution separation step of separating an aqueous alcohol solution from the gas absorption...

Company name: Mitsui Chemicals
Published On: Thursday March 28th, 2013

 
Method for producing 1,5-pentamethylenediamine, 1,5-pentamethylenediamine, 1,5-pentamethylene...

In a method for producing 1,5-pentamethylenediamine, a lysine decarboxylase-expressing microorganism that is subjected to a treatment is used.

Company name:
Published On: Thursday March 28th, 2013

 
Aqueous polyurethane-polyurea dispersions

The invention relates to a method for producing aqueous polyurethane-polyurea dispersions, where A) first a polyurethane prepolymer containing NCO groups is produced by reacting A1) polyisocyanates with A2) polymeric polyols and/or polyamines having number-average molecular weights of more than 400 to 8,000 g/mol, A3) possibly low-molecular-weight...

Company name: Clariant GmbH
Published On: Thursday March 28th, 2013

 
 
LATEST TRENDS >> PAPERS
SYSTEMS>> FLEXIBLE FOAMS
Comparison of Solvent/Derivatization Agent Systems for Determination of Extractable Toluene...

Flexible polyurethane foam (FPF) is produced from the reaction of toluene diisocyanate (TDI) and polyols. Limited and conflicting results exist in the literature concerning the presence of unreacted TDI remaining in FPF as determined by various solvent extraction and analysis techniques. This study reports investigations into the effect of several...

Company name: Huntsman Polyurethanes
Published On: Tuesday April 02nd, 2013

 
SYSTEMS>> BIOMATERIALS>> BIODEGRADABLE POLYMERS
Fluorescence imaging enabled urethane-doped citrate-based biodegradable elastomers

The field of tissue engineering and drug delivery calls for new measurement tools, non-invasive real-time assays, and design methods for the next wave of innovations. Based on our recent progress in developing intrinsically biodegradable photoluminescent polymers (BPLPs) without conjugating organic dyes or quantum dots, in this paper, we developed...

Company name: The University of Texas at Arlington
Published On: Tuesday April 02nd, 2013

 
FINISHED PRODUCTS>> MEDICAL>> DENTAL RESTORATION
Synthesis of a novel tertiary amine containing urethane dimethacrylate monomer (UDMTA) and its...

A novel tertiary amine containing urethane dimethacrylate monomer UDMTA was synthesized with the aim of replacing Bis-GMA as one component of dental restorative materials. The structure of UDMTA was confirmed by FT-IR and 1H-NMR spectra. UDMTA was incorporated into Bis-GMA/TEGDMA (50 wt%/50 wt%) resin system to replace Bis-GMA partly and totally....

Company name: South China University of Technology
Published On: Tuesday April 02nd, 2013

 
 

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