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  Issue-386 - November 18, 2013   Recommend
Press Releases Patents Technical Papers
LATEST TRENDS >> PRESS RELEASES
PU RAW MATERIALS>> ADDITIVES
BASF to establish coatings additives production in Nanjing, China

BASF is further strengthening its production footprint in Asia Pacific with a state-of-the-art coating additives production plant in Nanjing, China. At this new plant, BASF will produce coating additives for the Chinese and Asia Pacific markets. This investment allows BASF to support customers’ growth and emphasizes BASF’s commitment to meet the...

Company name: BASF Asia Pacific
Published On: Wednesday November 13th, 2013

 
PU RAW MATERIALS>> CURING AGENTS - CROSSLINKERS>> GREEN BASED
DuPont Tate & Lyle Bio Products and Archway Sales expand distribution agreement

DuPont Tate & Lyle Bio Products Company LLC has appointed Archway Sales, Inc. as its distribution partner to represent the Susterra 1,3-propanediol product line in the entire US market. With the additional states of Arizona, California, Idaho, Montana, Nevada, New Mexico, Oregon, and Washington added to its existing territory, Archway now covers...

Company name: Archway Sales
Published On: Wednesday November 13th, 2013

 
PU RAW MATERIALS>> CURING AGENTS - CROSSLINKERS>> AMINE BASED
Evonik is expanding its global isophorone and isophorone diamine capacities

Evonik Industries is significantly expanding its global isophorone (IP) and isophorone diamine (IPD) capacities by funding an investment of more than €100 million in Shanghai, China. The new production plants will be completed in the first quarter of 2014 and will increase the total capacities of IP and IPD significantly. We're investing in China,...

Company name: Evonik Industries
Published On: Monday November 18th, 2013

 
PU RAW MATERIALS>> POLYOLS
Research and Markets announces the addition of the Global Polyols (Polyether and Polyester) and...

Polyols (Polyether and Polyester) and Polyurethanes (Rigid foam, Flexible foam, CASE) Market For Furniture, Construction, Electronics & Appliances, Automotive, Footwear and Packaging - Global Industry Analysis, Size, Share, Growth, Trends and Forecast, 2012 - 2018The demand for polyurethane is mainly triggered by growing demand from furniture &...

Company name: Research and Markets
Published On: Wednesday November 13th, 2013

 
PU RAW MATERIALS>> POLYOLS>> POLYCAPROLACTONE
Perstorp increases its commitment to Chinese coating customers

The Perstorp Group, a world leader in specialty chemicals, will be showcasing its new Neopentyl Glycol (Neo) and innovative Capa™ polyols for PU coatings & stoving enamels at Chinacoat 2013. Considerable investments have been made into a new Neo plant at Zibo to support the growing demand for powder coatings in China. The investments are part of...

Company name: Perstorp
Published On: Thursday November 14th, 2013

 
PU RAW MATERIALS>> RESIN COMPOSITION>> POTTING / ENCAPSULATION RESINS
Cytec Introduces Its Highest UL RTI Rated Polyurethane Potting and Encapsulation Resin Systems at...

Cytec Industries Inc. Formulated Resins today unveiled CONAP® EN-5800 series, its UL RTI 130°C certified pure polyurethane resin systems, at Productronica in Munich, Germany, November 12-15, 2013. This latest innovation from Cytec was developed to help electronic and electrical device makers take high temperature challenges head-on. The CONAP...

Company name: Cytec Industries
Published On: Wednesday November 13th, 2013

 
CASE>> COATINGS>> SPRAY FOAMS
Gaco Western Commits to 300 New SPFA Certifications

Gaco Western is introducing a GacoWallFoam Qualified Applicator Program patterned after the new SPFA Professional Certification Program. Gaco believes in continually raising the bar on safety, performance, quality and professionalism in the SPF industry and believes the SPFA Professional Certification Program combined with the company's own...

Company name: Gaco Western
Published On: Thursday November 14th, 2013

 
CASE>> COATINGS>> PAINTS
Two-Part Topside Enamel provides high-gloss finish

Consisting of 2-part, silicone-enhanced polyurethane paint, EZ-Poxy2 can be applied over any previously painted surface, gel coat, or wood. Combination of added gloss, wear resistance, and UV protection helps maintain boat's polished look for years. Available in wide variety of colors, paint can be applied with roller or brush and is extremely...

Company name: Pettit Marine Paint
Published On: Monday November 18th, 2013

 
CASE>> ELASTOMERS>> TPU
BASF Highlights Latest Antimicrobial Thermoplastic Polyurethane Products at Compamed Tradeshow

The focus of BASF’s booth at the Compamed tradeshow in Düsseldorf, Germany, is on the latest antimicrobial thermoplastic polyurethane (TPU) products in the HyGentic® product portfolio and a range of high-performance plastics for medical technology. BASF will be exhibiting its solutions from November 20 through 22, 2103 in Booth No. G21, Hall...

Company name: BASF
Published On: Friday November 15th, 2013

 
FINISHED PRODUCTS>> CONSTRUCTING>> CONCRETE SUBSTITUTE
Polyurethane Foamjacking Fixes Georgia Homeowner's Driveway

When backing out of his garage, a Georgia homeowner noticed a large void at the top edge of his driveway and that the soil underneath an adjacent slab was being washed out with water. He realized that this particular nuisance could turn into a significant problem down the road, being that soil erosion could further crack the driveway and eventually...

Company name: Concrete Corrections
Published On: Monday November 18th, 2013

 
FINISHED PRODUCTS>> MEDICAL>> WOUND DRESSING
Complete product range for modern wound care

With a broad range of material solutions for medical applications, Bayer MaterialScience is helping customers around the world to improve product performance and curing efficiency. At Compamed 2013 trade fair from November 20-22, in Düsseldorf, the company will showcase current developments at Hall 08b, Booth H30. These in particular include the...

Company name: Bayer MaterialScience AG
Published On: Thursday November 14th, 2013

 
FINISHED PRODUCTS>> INDUSTRIAL
Low-smoke, zero halogen was the word at IWCS

If there was one phrase that really stood out to me during my brief trip to Charlotte for the International Wire & Cable Symposium (IWCS), it would be the term “low-smoke, zero halogen.”Several companies were highlighting new product lines touting this very critical feature, and several presenters highlighted it throughout the technical sessions,...

Company name: the International Wire & Cable Symposium
Published On: Friday November 15th, 2013

 
SPANDEX
Spandex is popularly used for making volleyball shorts

Volleyball shorts are as much a part of the game as is the ball itself. Without proper short pants, it does not even look as if you are watching a volleyball match. It is worn by all players, right from juniors to the pros. The flexibility and form-fitting quality of the pants make them a uniform for the game.The miracle fabric was invented in the...

Company name:
Published On: Monday November 18th, 2013

 
INDUSTRY UPDATE
Ethane, polyurethane processing to grow in West Virginia

Brazil-based Odebrecht intends to explore the development of a petrochemical complex in Wood County, W.Va.The complex, to be called Appalachian Shale Cracker Enterprise (Ascent), would include an ethane cracker, three polyethylene plants, and associated infrastructure for water treatment and energy co-generation, Odebrecht said in a press...

Company name: Odebrecht
Published On: Monday November 18th, 2013

 
Freudenberg Sealing Technologies launches innovation offensive

Seal manufacturer Freudenberg Sealing Technologies is launching an innovation offensive to respond to the industrial challenges of the 21st Century. The issues of mobility, renewable energy, dwindling raw materials and demographic change have emerged as megatrends. Freudenberg Sealing Technologies has decades of experience in materials development...

Company name: Freudenberg-NOK
Published On: Friday November 15th, 2013

 
PEOPLE
RadTech Announces Two New Hires

RadTech recently announced two new hires to assist membership and extend UV/EB outreach efforts. Doreen Monteleone, Ph.D., has been appointed director of Sustainability and EHS Initiatives. Monteleone has been helping businesses with regulatory compliance and sustainability issues for more than 20 years. In the early 1990s, she worked with many...

Company name: RadTech
Published On: Monday November 18th, 2013

 
Gray Named VP-Operations for Sika Automotive Facility

Sika Corp., Automotive Division USA, recently announced the promotion of Cedric Gray to the position of vice president of Operations for the company’s Grandview, Mo., manufacturing facility. Gray joined Sika in 2006 and has held various positions in quality and operations. He most recently held the position of Production manager at Sika’s...

Company name: Sika Automotive
Published On: Monday November 18th, 2013

 
HEALTH & SAFETY
Gymnasts highly exposed to flame retardants

Eleven-year-old Katya Olsen has practiced gymnastics since she was two years old. Now in sixth grade, she trains for competitions four hours a day, five days a week at a gym near her home in Arlington, Va.Katya’s gym, like most, contains an enormous pit filled with thousands of foam blocks – a soft landing for gymnasts learning new tricks.Now...

Company name: The Environmental Health News
Published On: Friday November 15th, 2013

 
OSHA Fines Tomball's Pigs Unlimited International Inc. for 19 Violations

A Tomball company's fat is in the fire with the U.S. Department of Labor's Occupational Health and Safety Administration, so to speak.The company, Pigs Unlimited International Inc., a foam and polyurethane pig manufacturer (we're talking about a piece of equipment sent up pipelines, not actual pigs, to clarify) has been fined for 19 safety...

Company name: Pigs Unlimited International
Published On: Friday November 15th, 2013

 
 
LATEST TRENDS >> PATENTS
PU RAW MATERIALS>> ADDITIVES>> RHEOLOGY MODIFIERS
Process for preparing a thixotroping agent and use thereof

The invention provides a process for preparing a thixotropic agent based on a urea derivative, in which the components .alpha.) comprising at least one amine and .beta.) comprising at least one isocyanate, are supplied separately to a mixing means and are mixed with one another, the reaction mixture being discharged by spraying or squirting from...

Company name: Construction Research & Technology
Published On: Thursday November 14th, 2013

 
PU RAW MATERIALS>> CATALYSTS
Trimer catalysts with improved processability and surface cure

The present invention provides trimerization catalyst compositions having an .alpha.,.beta.-unsaturated carboxylate salt and methods to produce a polyisocyanurate/polyurethane foam using such trimerization catalyst compositions.

Company name: Air Products and Chemicals, Inc
Published On: Thursday November 14th, 2013

 
PU RAW MATERIALS>> ISOCYANATES
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 SE
Published On: Thursday November 14th, 2013

 
Polyisocyanate polyaddition products, a process for preparation thereof and use thereof

The invention relates to polyisocyanate polyaddition products, to a process for preparation thereof and to the use thereof.

Company name:
Published On: Thursday November 14th, 2013

 
Preparation of polyisocyanates having isocyanurate groups and their use

The present invention relates to a novel process for preparing polyisocyanates having isocyanurate groups by a partial trimerization of (cyclo)aliphatic diisocyanates in the presence of at least one trimerization catalyst from the group of ammonium salts of lactames and to the use of the thus obtainable polyisocyanates having isocyanurate groups as...

Company name: BASF SE
Published On: Thursday November 14th, 2013

 
PU RAW MATERIALS>> RESIN COMPOSITION
Method for manufacturing resin for urethane-based optical material, resin composition for same, and...

A method of preparing an optical material by polymerizing a resin composition including a thiol group-containing compound and an isocyanate group-containing compound, particularly, a method of preparing a high-quality urethane-based optical material using a universal polyisocyanate compound. According to one aspect, a resin composition including a...

Company name:
Published On: Thursday November 14th, 2013

 
PU RAW MATERIALS>> RESIN COMPOSITION>> INKS COMPOSITION
Ink, ink cartridge and ink jet recording method

The invention provides an ink containing a polyurethane polymer which has units respectively derived from a polyisocyanate, a polyether polyol having no acid group and a diol having an acid group and has an acid value of 40 mg KOH/g or more and 140 mg KOH/g or less, a carbon black and at least one antioxidant selected from compounds represented by...

Company name: Canon Kabushiki Kaisha
Published On: Thursday November 14th, 2013

 
PU RAW MATERIALS>> RESIN COMPOSITION>> DISPERSIONS
Solvent free aqueous polyurethane dispersions and shaped articles therefrom

Novel aqueous polyurethane dispersions and shaped three dimensional articles formed therefrom are provided. The aqueous polyurethane dispersions are provided in solvent-free systems of a prepolymer comprising at least one polyether, polyester, or polycarbonate polyol, a mixture of MDI isomers, and a diol. The shaped articles from such dispersions...

Company name: Invista North America
Published On: Thursday November 14th, 2013

 
PU RAW MATERIALS>> RESIN COMPOSITION>> BINDERS
Binder containing substituted benzenes and naphthalenes for producing cores and molds for metal...

A binder for mold material mixtures is a four-component material. It contains at least one phenolic resin component, at least one isocyanate component, at least one alkyl/alkenyl benzene and at least one dialkylated and/or dialkenylated naphthalene. The phenolic resin component acts as the polyol component and contains phenolic resin obtainable...

Company name: ASK Chemicals
Published On: Thursday November 14th, 2013

 
SYSTEMS>> ADHESIVES>> PRESSURE SENSITIVE
Extrudable pressure sensitive non-black adhesive compositions and methods for preparing the same

A pressure-sensitive adhesive polymeric composition comprising: (a) a butyl rubber; (b) a polyurethane; (c) an olefinic polymer component; and (d) a filler that includes titanium dioxide.

Company name:
Published On: Thursday November 14th, 2013

 
SYSTEMS>> COATINGS
Crosslinkable coating compositions containing polyurethane

An aqueous crosslinkable coating composition that includes a PU polymer and a vinyl polymer bearing carbonyl groups (i.e., a carbonyl-functional vinyl polymer) and/or latex polymer. The composition also preferably includes carbonyl-reactive amine and/or hydrazine functional groups.

Company name: Valspar Sourcing
Published On: Thursday November 14th, 2013

 
SYSTEMS>> COATINGS>> DISPERSIONS
Aqueous preparations having soft-feel properties

An aqueous preparation having soft-feel properties comprises: A) an aqueous polyurethane-polyurea dispersion, B) a hydroxy-functional polyacrylate copolymer dispersion and C) a polyisocyanate, which may have been hydrophilically modified. The copolymer dispersion B) further comprises a hydroxy-functional polycarbonate diol D) as a reactive diluent....

Company name: Bayer Intellectual Property
Published On: Thursday November 14th, 2013

 
SYSTEMS>> SEALANTS
Sealant and adhesive using green prepolymer

A polyurethane prepolymer comprising the reaction product of a reactant formulation comprising a polyol entirely derived from a natural oil; a natural oil-petroleum blend polyol; an isocyanate, at least one catalyst, drying agent, and plasticizer, wherein the prepolymer has a bio-based content of from about 15% to about 75% by weight. The...

Company name: Construction Research & Technology
Published On: Thursday November 14th, 2013

 
SYSTEMS>> BIOMATERIALS>> NANOCOMPOSITE
Bone regeneration using biodegradable polymeric nanocomposite materials and applications of the same...

A structure of, and a method of producing, a biocompatible structure for bone and tissue regeneration are disclosed. The method includes dissolving a polyurethane polymer in methanol, adding hydroxyapatite (HAP) nanoparticles to form a uniformly distributed mixture, applying the mixture to a polytetrafluoroethylene (PTFE) surface to form a polymer...

Company name: University of Arkansas
Published On: Thursday November 14th, 2013

 
SYSTEMS>> BIOMATERIALS>> IMPLANTABLE DEVICES
Implantable device for the delivery of histrelin and methods of use thereof

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

Company name: Endo Pharmaceuticals Solutions
Published On: Thursday November 14th, 2013

 
CASE>> COATINGS>> FLOORING
Acoustical Vinyl Flooring and Methods of Manufacture

An acoustical vinyl tile having an integral acoustical layer is disclosed. The vinyl tile includes a vinyl portion, an acoustical portion, and an adhesive layer for fixing the vinyl portion to the acoustical portion. The acoustical portion comprises a crumb rubber component and a polyurethane foam component. The acoustical portion can include...

Company name:
Published On: Thursday November 14th, 2013

 
CASE>> ADHESIVES>> FILM
Hotmelt process for producing a chemically crosslinked polyurethane film

Process for producing a chemically crosslinked polyurethane film, comprising the steps of: A) chemically reacting a mixture comprising two or more polyols with one or more polyisocyanates, at least one of the polyols or at least one of the polyisocyanates comprising molecules having a functionality of three or more, to form hydroxyl-functionalized...

Company name: tesa
Published On: Thursday November 14th, 2013

 
CASE>> ELASTOMERS>> FILMS
Multilayer coating film-forming method

An object to be achieved by the present invention is to provide a method capable of forming a multilayer coating film having excellent smoothness, distinctness of image, and chipping resistance, by a 3-coat 1-bake process comprising successively applying an aqueous first colored coating composition, an aqueous second colored coating composition,...

Company name: Kansai Paint
Published On: Thursday November 14th, 2013

 
CASE>> ELASTOMERS>> TPU
Thermoplastic amphiphilic co-networks

The present invention relates generally to thermoplastic amphiphilic networks and/or co-networks. In one embodiment, the present invention relates to thermoplastic (TP) amphiphilic co-networks (APCNs) and the preparation of membranes from such APCNs. In another embodiment, the present invention relates to an amphiphilic network comprising at least...

Company name: The University of Akron
Published On: Thursday November 14th, 2013

 
Thermoplastic polyurethane block copolymer compositions

A novel block copolymer composition including a hydrogenated block copolymer that has at least one block A and at least one block B, and wherein (a) prior to hydrogenation each A block is a mono alkenyl arene homopolymer block and each B block is a controlled distribution copolymer block of at least one conjugated diene and at least one mono...

Company name: Kraton Polymers LLC
Published On: Thursday November 14th, 2013

 
CASE>> COMPOSITES
Polyurea composite armor

A composite armor including a ballistic armor layer and a directly attached polyurea layer. The polyurea layer is the cured reaction product of an isocyanate curing agent and a mixture of diamines having the general formula: H.sub.2N-Ph-(C.dbd.O)--O--(CH.sub.2--CH.sub.2--CH.sub.2--CH.sub.2--O).sub- .n--(C.dbd.O)-Ph-NH.sub.2, wherein in the mixture...

Company name: The United States of America as represented by the Secretary of the Army
Published On: Thursday November 14th, 2013

 
Process for the production of storage-stable polyurethane prepregs and mouldings produced therefrom...

The invention relates to a method for producing storage-stable polyurethane prepregs and molding bodies produced therefrom (composite components), which can be obtained by a method using a polyurethane composition in solution and by impregnation of fibre-reinforced materials such as of woven fabrics and laid scrim using reactive polyurethane...

Company name: Evonik Degussa GmbH
Published On: Thursday November 14th, 2013

 
CASE>> COMPOSITES>> FOAMS
Method for the production of composite elements based on isocyanate-based foams

An apparatus for application of liquids to a continuously conveyed outer layer having a rotating plate which is horizontal and parallel to the outer layer or with a deviation of up to 15.degree. from horizontal, wherein a liquid applied to the rotating plate is ejected centrifugally from the rotating plate via rotation and then, via gravity, passed...

Company name: BASF Aktiengesellschaft
Published On: Thursday November 14th, 2013

 
FINISHED PRODUCTS>> AUTOMOTIVE>> AIRLESS TIRES
Pneumatic tire having a built-in seamless polyurethane sealant layer and preparation thereof

The present invention is directed to a pneumatic tire having a built-in seamless polyurethane sealant layer and its preparation.

Company name: The Goodyear Tire & Rubber Company
Published On: Thursday November 14th, 2013

 
FINISHED PRODUCTS>> PRINTING>> DEVELOPING ROLLER
Developing roller

Provided is a developing roller in which printing quality, in particular, one-dot level fine line printing quality is improved by securing a high resistance value and high surface potential on the surface layer. The elastic roller comprises successively on the outer periphery of a shaft 1 an elastic layer 2, an intermediate layer 3, and a surface...

Company name: Bridgestone
Published On: Thursday November 14th, 2013

 
FINISHED PRODUCTS>> SPORTS>> GOLF
Methods for making polyurea polymer and golf balls prepared therefrom

Methods for making golf balls having a cover made from a polyurea composition are provided. The golf balls include a rubber core and intermediate layer made from an olefin-based ionomer composition. The methods for making the polyurea composition involve preparing an amine-terminated first polymer by reacting isocyanate compound A with a...

Company name:
Published On: Thursday November 14th, 2013

 
FINISHED PRODUCTS>> MEDICAL
Method for producing endoscope flexible tube

A method for producing an endoscope flexible tube comprising the steps of: preparing a flexible tube assembly including a spiral tube formed by spirally winding a metal strip and a cylindrical mesh sleeve, covering the spiral tube, formed by knitting metal wires; covering the flexible tube assembly with an outer coat from one end toward the other...

Company name: Fujifilm
Published On: Thursday November 14th, 2013

 
FINISHED PRODUCTS>> INDUSTRIAL>> VALVES
An ozone-resistant polyurethane composition and associated method of production

The ozone-resistant polyurethane composition according to the present invention, which is for the linings of valves, pipes or ozone contactors used in advanced water-treatment plants, comprises: 100 parts by weight of a polyurethane prepolymer consisting of toluene diisocyanate and poly(tetramethylene ether)glycol; from 8 to 14 parts by weight of...

Company name: HK valves
Published On: Thursday November 14th, 2013

 
CHEMISTRY
Glycerol levulinate ketals and their use in the manufacture of polyurethanes, and polyurethanes...

The present disclosure relates to the preparation of ketal compounds from glycerol and levulinic acid and esters, and uses thereof, in particular the manufacture of polyurethanes.

Company name:
Published On: Thursday November 14th, 2013

 
Development process of an ecological binder system for refractories mixes

The invention presented here deals with getting one of the raw materials of a new refractory binder system, the modified coal-tar pitch starting with heating the coal-tar, according to the specific distillation curve, later reaching a final distillation temperature of around 470.degree. C., resulting in getting a final compound with a concentration...

Company name: Saint-Gobain do Brasil Produtos Industriais e para Construcao
Published On: Thursday November 14th, 2013

 
 
LATEST TRENDS >> PAPERS
PU RAW MATERIALS>> CATALYSTS>> AMINE
Diamine-catalyzed urethane reaction of 1,3-propanediol with phenyl isocyanate

The urethane reaction of 1,3-propanediol with phenyl isocyanate is monitored by means of in situ FTIR. 1,4-Diazabicyclo[2.2.2]octane (DABCO) and N,N,N′,N′-tetramethylethane-1,2-diamine (TMEDA) are used as catalysts. Reaction rates are calculated, and reaction kinetics are studied. Furthermore, Gaussian programs are used to calculate...

Company name: Shandong Polytechnic University
Published On: Friday November 15th, 2013

 
PU RAW MATERIALS>> POLYOLS>> POLYESTER
Transparent polyester polyol-based polyurethane coatings: the effect of alcohols

A series of polyester polyols were synthesized using 1,6-hexanediol (HDO), 1,4-cyclohexanedimethanol (1,4-CHDM) and trimethylol propane (TMP), alone or in combination with 1,4-cyclohexanedicarboxylic acid and adipic acid. The polyester polyols were reacted with isocyanate trimers to form polyurethane (PU) coatings. Physical properties of the...

Company name: South China University of Technology
Published On: Friday November 15th, 2013

 
PU RAW MATERIALS>> RESIN COMPOSITION>> BINDERS
On relation of development of speed of ultrasound in hardening polyurethane coldbox binders

The relationship between the change in sound propagation and mechanical properties of a gas hardening polyurethane coldbox bound sand core was studied. A novel test rig was constructed to achieve that goal. The sound propagation properties are quantitatively different in every trial of the experiments. Defining criteria for the start and end of the...

Company name: Aachen University
Published On: Friday November 15th, 2013

 
SYSTEMS>> COATINGS>> PHOTOSENSITIVE COATINGS
Polydimethylsiloxane (PDMS)-based antibacterial organic–inorganic hybrid coatings

UV-curable antibacterial organic–inorganic hybrid coatings were prepared by sol–gel method. Triethoxysilane-terminated poly(dimethylsiloxane) (TESi-PDMS) as a new coupling agent to improve the compatibility between organic and inorganic phases was synthesized. PDMS-based urethane methacrylate oligomer was obtained by reacting isophorone...

Company name: Marmara University
Published On: Friday November 15th, 2013

 
SYSTEMS>> BIOMATERIALS>> BIODEGRADABLE POLYMERS
Study of the properties of the new biodegradable polyurethane PU (TEG-HMDI) as matrix forming...

The purpose of this work is to study the ability of a new biodegradable polyurethane PU(TEG-HMDI) obtained by reaction of triethylene glycol (TEG) with 1,6-hexamethylene diisocyanate (HMDI) to act as matrix forming polymer for controlled release tablets and to estimate its percolation threshold in a matrix system. Matrix tablets weighing...

Company name: University of Seville
Published On: Friday November 15th, 2013

 
FOAMS
Surperhydrophobic polyurethane foam modified by graphene oxide

Graphene with amine group was covalently grafted on the polyurethane foam with nitrile group to form superhydrophobic foam. Fourier transform infrared spectroscopy (FTIR), atomic force microscopy (AFM), thermogravimetric analysis (TGA), optical contact angle measuring device, and scanning electron microscopy (SEM) were used to characterize the...

Company name: Sichuan University
Published On: Friday November 15th, 2013

 
CASE>> COATINGS
Preparation and characterization of polyurethane clearcoats and investigation into their...

A type of antigraffiti polyurethane clearcoat was prepared and characterized. Polymethylsiloxane grafted by fluorocarbon side chains (PSF) was first synthesized through hydrosilylation of polymethylhydrosiloxane with dodecafluoroheptyl acrylate. Hydroxyl fluoroacrylate resins with different hydroxyl contents were synthesized via free...

Company name: Southeast University
Published On: Friday November 15th, 2013

 
CASE>> COATINGS>> ANTIFOULING / FOULING RELEASE
Synthesis and characterization of siloxane-modified two-component waterborne polyurethane

Researchers synthesized a series of siloxane-modified two-component waterborne polyurethane (2K WPU) by the reaction between siloxane-modified hydroxyl-functional polyurethane aqueous dispersion and the hydrophilic-modified polyisocyanate.Zhen Ge and Yunjun Luo from the School of Materials Science and Engineering, Beijing Institute of Technology,...

Company name: Beijing Institute of Technology
Published On: Thursday November 14th, 2013

 
CASE>> ELASTOMERS>> RUBBERS
Fatigue Life Estimation for an NBR Rubber and an Expanded Polyurethane

In this paper, we deal with the mechanical behavior of elastomeric materials subjected to high cyclic loading in cases of high strain. First, a methodology for material parameter identification is used for a constitutive visco-hyperelastic law with discontinuous damage, modeling the Mullins effect. Then a fatigue model characterized by a strain...

Company name: Universit� de Lyon
Published On: Friday November 15th, 2013

 
CHEMISTRY
Temperature dependence of hydrogen bond in Fe-OCAP/polyurethane blends

Fourier transform infrared (FTIR) thermal analysis was utilized to study the temperature dependence of hydrogen bond in Fe-octacarboxyl acid phthalocyanine (Fe-OCAP)/polyurethane (PU) blends. Two regions in the FTIR spectra were concerned to investigate the difference of the degree of hydrogen bond in the samples: the [BOND]NH stretching region...

Company name: Donghua University
Published On: Friday November 15th, 2013

 
Rhenium-Catalyzed Synthesis of 3-Imino-1-isoindolinones by CH Bond Activation: Application to the...

Polyimide solution: Synthesis of the title compounds from aromatic imidates and isocyanates in good to excellent yields by a rhenium-catalyzed C[BOND]H bond transformation is described. The reaction also proceeded in high yield on gram scale and could be applied to the synthesis of polyimide derivatives (see figure), which are highly soluble in...

Company name: The University of Tokyo
Published On: Wednesday November 13th, 2013

 
 

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