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  Issue-306 - April 23, 2012   Recommend
Press Releases Patents Technical Papers
LATEST TRENDS >> PRESS RELEASES
PU RAW MATERIALS>> ADDITIVES
Momentive Performance Materials Celebrates Fifty Years of Achievement and Innovation in Polyurethane...

Momentive Performance Materials Inc., a leading global provider of silicones and advanced materials, celebrates five decades of technological achievement in the global polyurethane foam industry as its venerable Niax* brand passes the 50-year mark. Momentive’s legacy of breakthrough innovation in foam technology dates back to a heritage that is...

Company name: Momentive Performance Materials
Published On: Tuesday April 17th, 2012

 
CECA Showcases Alkoxylate Additives & Molecular Sieves to Enhance Properties of PU Systems at UTECH...

CECA is participating in ongoing UTECH 2012 exhibition that is held from 17-19 April (stand #1030) and is showcasing two of its products used in the polyurethane industry: its alkoxylate additives as well as its molecular sieves.With over 100 exhibitors and 90 technical conferences, UTECH Europe, the international reference tradeshow for the...

Company name: CECA
Published On: Thursday April 19th, 2012

 
Rhein Chemie presents its extensive range of custom solutions for polyurethane processors at UTECH

Rhein Chemie is presenting its extensive range of custom solutions for polyurethane processors and its new, product focused webshop at Utech Europe in Maastricht from April 17 - 19, 2012. The current range of additives from Rhein Chemie meets many of the specific challenges encountered in polyurethane processing and includes highly effective...

Company name: Rhein Chemie
Published On: Thursday April 19th, 2012

 
PU RAW MATERIALS>> CATALYSTS
Dorf Ketal launch mercury replacement catalysts

Dorf Ketal will exhibit on Stand B5 and introduce their titanium-based catalysts. Dorf Ketal will be exhibiting on our stand at Surfex Plus. Come and visit Stand B5 to find out more about their products. It's at the NEC on 29-30 May.*NEW* Unilink Catalysts range of water-stable titanium based catalysts used as mercury replacement catalysts in...

Company name: Alfa Chemicals Ltd.
Published On: Friday April 20th, 2012

 
PU RAW MATERIALS>> CATALYSTS>> AMINE
Huntsman Increases Polyurethane Catalyst Capacity in Petfurdo, Hungary and Barcelona, Spain

The Performance Products division of Huntsman Corporation (NYSE:HUN) today announced plans to expand manufacturing capacity of specialty amines used as polyurethane catalysts at its manufacturing facilities in Petfurdo, Hungary and in Barcelona, Spain. The expansions extend the Huntsman manufacturing portfolio, further leverage the company’s...

Company name: Huntsman Advanced Materials
Published On: Friday April 20th, 2012

 
PU RAW MATERIALS>> RELEASE AGENTS
Chem-Trend Showcases Solutions for the Polyurethane Industry at UTECH Europe 2012

Chem-Trend, a global supplier singularly focused on release agents, will exhibit its solutions for the polyurethane industry’s biggest challenges in booth #1700 at UTECH Europe 2012, April 17-19 in Maastricht, Netherlands. Chem-Trend will showcase new options for integral skin foam molding, water-based options and tin-free formulations.“The...

Company name: Chem-Trend
Published On: Tuesday April 17th, 2012

 
PU RAW MATERIALS>> CURING AGENTS - CROSSLINKERS
Incorez, a leading manufacturer of specialist resins and polymers, will be exhibiting at the...

Incorez, a leading manufacturer of specialist resins and polymers, will be exhibiting at the American Coatings Show in Indianapolis, USA from May 8-10. At Booth 1730, Incorez will provide details of recent development work and an insight into forthcoming new product launches. This will include a new oxazoldine latent hardener for use in...

Company name: Incorez
Published On: Thursday April 19th, 2012

 
PU RAW MATERIALS>> POLYOLS
Reportlinker.com announces new market research report: Global Polyols Industry

Reportlinker.com announces that a new market research report is available in its catalogue: Global Polyols IndustryThis report analyzes the worldwide markets for Polyols in Million Pounds by the following End-Use Segments: Industrial Applications, Food & Confectionery, Pharmaceuticals, Cosmetics, Oral-Care Products, and Others. The report provides...

Company name: Reportlinker.com
Published On: Monday April 16th, 2012

 
PU RAW MATERIALS>> ISOCYANATES
Overall MDI Demand Increase Levels to Outpace Total World GDP Growth According to Research and...

MDI is mostly used to manufacture rigid polyurethane foams which are widely used as insulators in construction, consumer appliances, industrial applications, packaging and other applications. It is also used in non-foam applications such as Elastomers, paints & coating, and adhesives & sealants. The global MDI market revenue is expected to reach...

Company name: Research and Markets
Published On: Thursday April 19th, 2012

 
SYSTEMS>> ADHESIVES
Stauf reformulates adhesive to be isocyanate-free

Stauf Adhesives USA announced that it has reformulated its urethane-based wood flooring adhesive and eliminated the chemical known as isocyanate.“Our forward-looking chemical engineers in Stauf’s state-of-the-art laboratory in Germany have created a urethane-based adhesive that does not require the traditional Methylene Diphenyl Dissocyanate (MDI)...

Company name: Stauf Adhesives
Published On: Thursday April 19th, 2012

 
Adhesive Makers Prepare for Possible EPA Regulation

Wood flooring adhesive makers are rolling out responses to an Environmental Protection Agency (EPA) action plan concerning diisocyanate, a common chemical found in small amounts in urethane glues. Another name for the chemical is methylene diphenyl diisocyanate (MDI). The EPA issued the action plan—which addresses certain chemicals instead of...

Company name:
Published On: Friday April 20th, 2012

 
SYSTEMS>> COATINGS>> SPRAYS
Bayer MaterialScience LLC introduces web-based applicator program in Spanish

Approximately 45 million people in the United States today speak Spanish. Bayer MaterialScience LLC now offers its Applicator Fundamentals Program in Spanish. The free, interactive, online program is geared toward spray polyurethane foam (SPF) contractors and applicators; it addresses the basics of SPF application, equipment, and safety.Bayer...

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

 
Louisiana-Based CISI Provides Spray Foam and Polyurea Solutions From the Bayou

If you drive 90 minutes west of New Orleans, you’ll find the town of Amelia, and in Amelia, you’ll find Compliance Inspection Services Inc. (CISI). From that small town, CISI has been a nationwide provider of spray foam and polyurea coating applications since 2006. “We do anything and everything in terms of spray foam insulation, spray foam roofing...

Company name: Compliance Inspection Services
Published On: Tuesday April 17th, 2012

 
SYSTEMS>> COATINGS>> PHOTOSENSITIVE COATINGS
Bomar Specialties announces integration into Dymax

Bomar Specialties, Inc., a leading innovator of advanced-performance materials for energy (UV/EB), light, and other free radical cure applications, has announced its integration into Dymax Corporation, a leading manufacturer of light-curing adhesives, coatings, and equipment. As a result of the integration, Bomar Specialties will transition to...

Company name: Bomar Specialties
Published On: Thursday April 19th, 2012

 
FOAMS
Reportlinker.com announces new market research report: Global Polymeric Foams Industry

This report analyzes the worldwide markets for Polymeric Foams in Thousand Metric Tons by the following Product Segments: Polyolefin Foams, Polystyrene Foams, Polyurethane Foams, PVC Foams, and Others (includes phenolic foams and fluoropolymer foams). The report provides separate comprehensive analytics for the US, Canada, Japan, Europe,...

Company name: Reportlinker.com
Published On: Tuesday April 17th, 2012

 
CASE>> COATINGS
ASTM International Releases New Compilation of Paint and Coatings Standards

ASTM International has released a new compilation, ASTM Paint and Coating Standards, on CD-ROM. The collection provides a useful tool for personnel working in the field of coatings and allied products.Each of the 48 ASTM standards featured in ASTM Paint and Coatings Standards contains a detailed description of the noted test method, procedure, or...

Company name: ASTM International
Published On: Thursday April 19th, 2012

 
CASE>> ADHESIVES>> FLOORING
Rubber Flooring, Inc. Expands Flooring Adhesive Line to Include New "Green" Solutions

Rubber Flooring Inc. announces the introduction of several new lines of flooring adhesives including some revolutionary new "green" flooring adhesives. The expanding product offerings are designed to meet the needs of Rubber Flooring, Inc.'s growing market base and to provide more environmentally friendly flooring adhesive solutions."The flooring...

Company name: Rubber Flooring
Published On: Thursday April 19th, 2012

 
FINISHED PRODUCTS>> AUTOMOTIVE
Bayer MaterialScience develops polyurethane system for even more energy-efficient vehicles

Demand for lightweight construction systems in the automotive industry is now at an all-time high, with the aim being to cut fuel consumption, costs and CO2 emissions. According to VCD Verkehrsclub Deutschland, reducing the weight of a vehicle by 100 kilograms lowers fuel consumption by 0.5 liters over a distance of 100 kilometers and cuts carbon...

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

 
FINISHED PRODUCTS>> COLD STORAGE & REFRIGERATION
Bayer MaterialScience meets equipment manufacturer and consumer requirements

The proportion of energy consumed by modern-day private households that can be attributed to refrigerators is considerably more than 10 percent. Lowering this energy consumption would reduce the financial burden on the consumer and at the same time help protect the environment. This development is also being driven by stricter regulatory...

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

 
FINISHED PRODUCTS>> PETROCHEMICAL - OIL FIELD
Perma-Pipe, Inc., Subsidiary of MFRI, Inc., Announces Grand Opening of New Manufacturing Plant in...

MFRI announced today that on April 3, 2012 its Perma-Pipe subsidiary held the grand opening of its newest manufacturing facility for pre-insulated pipe systems. The ribbon cutting was performed by His Royal Highness Prince Muhammad bin Fahd bin Abdulaziz Al Saud, Governor of the Eastern Province and His Excellency Dr. Tawfig Al Rabiah, Minister of...

Company name: Perma-Pipe
Published On: Friday April 20th, 2012

 
FINISHED PRODUCTS>> OTHERS
Foam substrate holds water

A study in Tunisia has found that grass planted on hydrophilic polyurethane-based foam VYDRO substrate requires up to 40 per cent less watering to stay green.Chemical multinational Huntsman introduced the water-retention product for green roofs last year. The study was carried out by French Forestry Education Institute ENGREF and the National...

Company name:
Published On: Friday April 20th, 2012

 
INDUSTRY UPDATE
Huntsman: Cooperation With Polinvent

The Polyurethanes division of Huntsman has signed a cooperation agreement with Budapest-based Polinvent – a research-intensive enterprise that has recently developed and patented a range of novel amine-epoxy adducts. Together, the two companies will explore the benefits that can be derived from incorporating Polinvent adducts into polyurethane and...

Company name: Huntsman Polyurethanes
Published On: Thursday April 19th, 2012

 
Economist Alan Tonelson to Keynote Polyurethane Foam Association Meeting in May

Alan Tonelson, renowned policy analyst with the U.S. Business & Industrial Council Educational Foundation (USBIC), a Washington research organization studying U.S. economic, technology, and national security policy, will deliver the keynote speech at the Polyurethane Foam Association's (PFA) spring meeting in Baltimore, Maryland May 16-17. Tonelson...

Company name: Polyurethane Foam Association, Inc
Published On: Friday April 20th, 2012

 
Dahej project will substantially increase BASF India's scale of operations

The scrip of BASF India has gained over 23% in the last seven trading sessions on the announcement that it will invest 1,000 crore in a Greenfield chemicals complex at Dahej.Considering its history of spending close to 30 crore to 60 crore annually on capital expenditure, this is quite significant. This mega-project will more than double its gross...

Company name: BASF India
Published On: Friday April 20th, 2012

 
PEOPLE
Bayer MaterialScience names regional president

Bayer MaterialScience LLC today named Jerry MacCleary President for the NAFTA region, effective June 1, 2012. MacCleary assumes the leadership of the Company’s operations in the region from Greg Babe, who recently announced his planned retirement from Bayer.In addition, MacCleary will retain his leadership of the Polyurethanes marketing and...

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

 
 
LATEST TRENDS >> PATENTS
PU RAW MATERIALS>> ADDITIVES>> SURFACTANTS
Additive for aqueous polyurethane dispersion

The present invention relates to glycine derivatives as additive for an aqueous polyurethane dispersion. Said glycine derivatives can increase the fluidity of aqueous polyurethane dispersion and therefore is useful for preparation of aqueous polyurethane dispersion with high solid content. Besides, the glycine derivatives are able to significantly...

Company name: Taiwan Hopax Chemicals Manufacturing
Published On: Wednesday April 18th, 2012

 
PU RAW MATERIALS>> CURING AGENTS - CROSSLINKERS
Aldimine and composition containing aldimine

Aldimines of Formula (I), which can be used as latent curing agents in curing compositions, for example, in moisture-curing polyurethane compositions that have isocyanate groups. The aldimines are compounds that can be liquid at room temperature, can have a hardly noticeable aldehyde odor before, during and after hydrolysis, and can have a long...

Company name: Sika Technology
Published On: Wednesday April 18th, 2012

 
PU RAW MATERIALS>> ISOCYANATES
Process for preparing isocyanates

Process for preparing isocyanates by reacting the corresponding amines with phos-gene comprising (a) providing at least one amine-comprising feed stream and at least one phosgene-comprising feed stream, (b) mixing the feed streams to form at least one reaction mixture in a mixing zone, (c) reacting the at least one reaction mixture in a reaction...

Company name: BASF SE
Published On: Wednesday April 18th, 2012

 
Polyisocyanate production system and gas treatment apparatus

A gas treatment apparatus for treating a gas by bringing the gas into contact with a treatment liquid. The gas treatment apparatus includes a gas-liquid contact chamber for a gas-liquid contact of the gas with the treatment liquid, a storage chamber, located over the gas-liquid contact chamber, for storing the treatment liquid, and a treatment...

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

 
Synthesis of acylureas and composition comprising acylureas

The invention relates to a process for the synthesis of a polyisocyanate composition comprising acylureas. According to the invention, a starting composition comprising a compound having at least two isocyanate functional groups is subjected to a reaction with at least two acid functional groups, with at least one of the acid functional groups...

Company name: Perstorp
Published On: Wednesday April 18th, 2012

 
PU RAW MATERIALS>> RESIN COMPOSITION
Composition for polyurethane resin formation, sealing material, and hollow-fiber membrane module

A polyurethane resin forming composition comprising: a main agent (A) containing an isocyanate group-terminated prepolymer obtained by reacting an isocyanate group-containing compound (a1) with a polyfunctional polyether polyol (b1) having a specific molecular weight distribution obtained by the use of a compound having a functional group number of...

Company name: Nippon Polyurethane Industry
Published On: Wednesday April 18th, 2012

 
SYSTEMS>> ADHESIVES
Moisture cross-linkable adhesive compositions

The invention relates to a moisture cross-linkable composition usable as an adhesive or sealant which is very easy to use and exhibits excellent bonding performance. The composition is obtained by mixing 100 parts by weight of an organic polymer (A) with moisture cross-linkable reactive silane terminal functions and 1 to 70 parts by weight of an...

Company name: Bostik
Published On: Wednesday April 18th, 2012

 
SYSTEMS>> ADHESIVES>> LAMINATES
Structure for railroad ties having data acquisition, processing and transmission means

An encapsulated railroad tie structure and its method of manufacture. A core of laminated wood slats is inserted into an extruded sleeve of scrap tire rubber and polyurethane. A urethane adhesive laminates the wood slats together and serves as a lubricant and bonding agent for placement and secured engagement of the sleeve about the core. End caps...

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

 
SYSTEMS>> ADHESIVES>> PRESSURE SENSITIVE
Erosion resistant films for use on heated aerodynamic surfaces

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

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

 
SYSTEMS>> COATINGS
Anti-graffiti coatings

A coating composition including a functionalized resin selected from at least one of polyurethanes, epoxies, polyamides, chlorinated polyolefins, acrylics, polyesters, or mixtures or copolymers thereof, wherein the resins comprises at least one of (meth)acryl or acetoacetyl functionality; a (meth)acryl functional compound; and a functionalized...

Company name: Valspar Sourcing
Published On: Monday April 16th, 2012

 
Coating composition

The instant invention is a coating system, a coating composition, a coating layer, a coated substrate, a method for producing a coating composition, a method for forming a coating layer, a method for making a coated substrate, and a method for healing a coated substrate. The coating system according to the present invention comprises (a) one or...

Company name:
Published On: Tuesday April 17th, 2012

 
Improved coating composition for wind turbine blades

The present application discloses a wind turbine blade having on the outer surface thereof a polyurethane-based coating including a polyurethane binder prepared from polyol(s) having an average functionality of .gtoreq.2.0 and

Company name: Hempel
Published On: Wednesday April 18th, 2012

 
SYSTEMS>> COATINGS>> DISPERSIONS
Crosslinkable polyurethane dispersions

The invention relates to novel aqueous, crosslinkable polyurethane dispersions based on terephthalic acid polyesters, the production thereof and their use in combination with hydroxy-functional reactants for the production of lacquers, coatings and sizes which are distinguished especially by high film hardness together with high elasticity and very...

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

 
CASE>> ELASTOMERS>> MICROCELLULAR
Polyurethane microcellular elastomer, method for preparing same and use thereof

The present invention relates to polyurethane, and specifically relates to a polyurethane microcellular elastomer, a method for preparing the same, and the use thereof. The polyurethane microcellular elastomer is the reaction product of (1) an isocyanate-terminated prepolymer obtained by reacting an isocyanate with a first polyol, (2) a second...

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

 
CASE>> ELASTOMERS>> TPU
Plastic mixtures comprising thermoplastic polyurethane (TPU) and impact-resistant poly(meth)acrylate...

The present invention relates to a plastics mixture comprising at least one thermoplastic polyurethane A) and at least one impact-modified poly(meth)acrylate B), where the impact-modified poly(meth)acrylate comprises a hard phase whose glass transition temperature is at least 70.degree. C. and a tough phase whose glass transition temperature is at...

Company name: Evonik Industries AG
Published On: Thursday April 19th, 2012

 
CASE>> COMPOSITES
Covering material for water- or weather-proofing

The invention pertains to a reinforced covering material, comprising a reinforcement layer with apertures therein, and a polyurethane-based layer comprising 20-100% of thermosetting polyurethane, based on the weight of that layer, which polyurethane-based layer is arranged at least one side of the reinforcement layer and extends through the...

Company name: De Veenvoort
Published On: Tuesday April 17th, 2012

 
FINISHED PRODUCTS>> AUTOMOTIVE>> STEERING WHEEL
Polyurethane foam for steering wheel having improved water resistance

The present invention provides a polyurethane foam for an automobile steering wheel. More particularly, the present invention relates to polyurethane foam formed by using a predetermined amount of a polyol having various functional groups and OH values and a predetermined amount of isocyanate having a certain function, along with water as a foaming...

Company name: Hyundai Motor Company
Published On: Wednesday April 18th, 2012

 
FINISHED PRODUCTS>> COLD STORAGE & REFRIGERATION
Apparatus for vacuum foaming containers for refrigeration

An apparatus for vacuum foaming containers for refrigeration of foodstuffs, in which a polyurethane mixture is injected into hollow walls of a container closed under vacuum condition within a foaming cell. The apparatus includes a main frame for supporting the foaming cell, and an auxiliary frame movable between a lowered opening position and...

Company name:
Published On: Friday April 20th, 2012

 
FINISHED PRODUCTS>> PRINTING
Blade for electrophotographic apparatus, and method of producing the same

A blade for an electrophotographic apparatus is provided which is prevented from turning up, achieves wear resistance, and has excellent cleaning properties. The blade is composed of a support member and a blade member formed of a thermosetting polyurethane elastomer, which are joined together. The blade member has a structure in which a nitrogen...

Company name: Canon Kasei Kabushiki Kaisha
Published On: Wednesday April 18th, 2012

 
Cleaning roller for cleaning charging roller and image forming apparatus

A cleaning roller for cleaning a charging roller in an image forming apparatus is disposed in contact with an outer peripheral surface of a charging roller to remove foreign matters attached to the outer peripheral surface of the charging roller. The cleaning roller has a metal core and a polyurethane foam layer covering an outer peripheral surface...

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

 
CHEMISTRY
Process for preparing isocyanatoorganosilanes

Isocyanate-functional silanes, particularly isocyanate-functional .alpha.-silanes, are prepared in good yield by a liquid phase thermolysis conducted in the presence of a catalyst at a pressure of >100 mbar, or >80 mbar when a thin-film evaporator is used.

Company name: Wacker Chemie AG
Published On: Wednesday April 18th, 2012

 
Polylactic acid-based resin, process for producing polylactic acid-based resin, polylactic acid...

The invention provides a polylactic acid-based resin having a high molecular weight, high heat resistance and an amide bond in its molecular chain, a production process and a use thereof. The polylactic acid-based resin comprises a constituting unit represented by the following formula (1) and which is obtained by allowing a polyisocyanate compound...

Company name:
Published On: Tuesday April 17th, 2012

 
 
LATEST TRENDS >> PAPERS
PU RAW MATERIALS>> FILLERS>> OTHER
Nanofiller reinforcement of elastomeric polyurea

The effects of multiwall carbon nanotubes (MWCNT), nanolayered silicate (nanoclay), and trisilanolphenyl-functionalized polyhedral oligomeric silsesquioxane (POSS) on the rheology and mechanical properties of an oligomeric polydiamine and the polyurea formed by its reaction with isocyanate were measured. The MWCNT and nanoclay increase the...

Company name: U.S. Naval Research Laboratory
Published On: Wednesday April 18th, 2012

 
SYSTEMS>> ADHESIVES>> MOISTURE CURED
Wood/adhesive interactions and the phase morphology of moisture-cure polyurethane wood adhesives

Two moisture-cure polyurethane adhesives (PURs) were studied: a model (MPUR) prepared from a symmetrical diisocyanate that gave rise to a continuous soft phase, and a commercially relevant adhesive (CPUR) prepared from an asymmetrical polyisocyanate that resulted in a continuous hard phase. Atomic force microscopy revealed that the size and size...

Company name: Virginia Tech
Published On: Wednesday April 18th, 2012

 
SYSTEMS>> BIOMATERIALS
Reduction-sensitive rapid degradable poly(urethane-urea)s based on cystine

Two kinds of novel reduction-sensitive rapid degradable poly(urethane-urea)s were synthesized and characterized based on a cystine derivative chain extender which provided active sites for reductive degradation. In vitro degradation study was carried out under physiological conditions mediated by glutathione and dithiothreitol respectively, and was...

Company name: Shanghai Jiao Tong University
Published On: Wednesday April 18th, 2012

 
Structure–property investigations with dielectric study on phosphorylcholine-based polyurethane

Polyurethane with zwitterionic phosphorylcholine on the main chain was synthesized and the structures were defined with FTIR and 1HNMR. The mechanical (tensile strength, elastic modulus) and biological (platelet adhesion) evaluations of its blend films with polyurethane were of satisfactory results, which were in accordance with the requirements of...

Company name: NanJing Normal University
Published On: Tuesday April 17th, 2012

 
CASE>> COATINGS
Time-dependent performance of concrete surface coatings in tidal zone of marine environment

Corrosion induced by salinity of marine environment is a great threat for significant infrastructures which are placed in such areas. Concrete surface coating is one of the main materials which are used in new or repaired concrete structures which are located in corrosive environment. In this study six different concrete surface coatings are...

Company name: University of Tehran
Published On: Friday April 20th, 2012

 
CASE>> ELASTOMERS
Measurement and numerical simulation of the self heating of cross-linked segmented polyurethanes...

The self-heating and heat conversion rate of a crosslinked segmented polyurethane (SPU) under mechanical fatigue were studied. A specific compressive fatigue test at constant load was designed in agreement with application to study the behaviour of SPU cylinders under such stress. Due to the viscoelastic behavior, a self-heating phenomenon was...

Company name: Université de Lyon
Published On: Wednesday April 18th, 2012

 
CHEMISTRY
Tailoring the structure of cellular vitreous carbon foams

Cellular vitreous carbon (CVC) foams have been prepared from tannin-based resin modified by isocyanates of different natures, added in different amounts, and according to different mixing methods. We show that low amounts of isocyanate allow considerable changes in the porous structures of the resultant CVC foams. The latter are now more...

Company name: Nancy-Université
Published On: Tuesday April 17th, 2012

 
Micellar behavior of some amphiphilic block polyurethanes in aqueous/nonaqueous media

Amphiphilic polyether block polyurethanes based on Pluronic type macrodiol and polyethylene glycol as co-segment have been prepared. Their micellar behavior in N,N-dimethylformamide solution, aqueous solvent mixtures and with added inorganic salts or urea was investigated by employing fluorescence spectroscopy and tensiometry techniques. Increased...

Company name: Petru Poni Institute of Macromolecular Chemistry
Published On: Wednesday April 18th, 2012

 
Influence of ionic charge placement on performance of poly(ethylene glycol)-based sulfonated...

Poly(ethylene glycol) (PEG)-based sulfonated polyurethanes bearing either sulfonated soft segments (SSSPU) or sulfonated hard segments (SHSPU) were synthesized using sulfonated monomers. Differential scanning calorimetry (DSC) revealed that sulfonate anions either in the soft segments or hard segments both increased the glass transition...

Company name: Virginia Tech
Published On: Wednesday April 18th, 2012

 
HEALTH & SAFETY
Penetration patterns of monomeric and polymeric 1,6-hexamethylene diisocyanate monomer in human skin

We investigated penetration patterns of monomeric and polymeric 1,6-hexamethylene diisocyanate (HDI), experimentally and as part of commercial products, in excised full-thickness human skin at 5, 10, 30, or 60 min after exposure. We observed that both monomeric and polymeric HDI were readily absorbed into the skin and that the clearcoat composition...

Company name: The University of North Carolina
Published On: Wednesday April 18th, 2012

 
 

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