Class / Patent application number | Description | Number of patent applications / Date published |
521160000 | Two or more N=C=X reactants | 20 |
20090082481 | Preparation of liquid isocyanurate-modified polymethylene bis(phenylisocyanate) compositions of controlled viscosities - Disclosed is a method for the production of highly stable, liquid isocyanurate-modified PMDI compositions having relatively higher viscosity and a generally comparable functionality, as compared to conventional PMDI. An admixture of the isocyanurate-modified PMDI with conventional PMDI is suitable for use in the manufacture of a variety of polyurethane products, including rigid and flexible foams, coatings, elastomers and sealants. Foams produced using this admixture exhibit properties that are comparable to foams produced from standard polymeric MDI of comparable viscosity that don't contain isocyanurate moieties. | 03-26-2009 |
20090111903 | METHOD OF MAKING POLYURETHANE FOAM - An isocyanate prepolymer is made by providing an isocyanate component. A phosphite that is free of active hydrogen groups is introduced into the isocyanate component. An isocyanate-reactive component and a stoichiometric excess of the isocyanate component are reacted in the presence of the phosphite to make the isocyanate prepolymer. A polyurethane foam is made by reacting the isocyanate prepolymer and a second isocyanate-reactive component in the presence of a blowing agent. A composite article is made by forming an elastomeric layer on the outer surface of the polyurethane foam core. Due to the presence of the phosphite during reaction of the isocyanate component and the isocyanate-reactive component to make the isocyanate prepolymer, more efficient use of the phosphite is made, and the full color-reducing effect of the phosphite on the polyurethane foam is realized. | 04-30-2009 |
20090156704 | Non-Halogen Flame Retardant Additives for Use in Rigid Polyurethane Foam - Flame retarded polyurethane foams are produced by reacting a polyurethane foam-forming composition comprising polyol, organic isocyanate and at least one phosphate ester containing both alkyl and aryl group functionality. | 06-18-2009 |
20090221728 | METHOD OF MAKING POLYURETHANE FOAM - An isocyanate prepolymer is made by providing an isocyanate component. A phosphite that is free of active hydrogen groups is introduced into the isocyanate component. An isocyanate-reactive component and a stoichiometric excess of the isocyanate component are reacted in the presence of the phosphite to make the isocyanate prepolymer. A polyurethane foam is made by reacting the isocyanate prepolymer and a second isocyanate-reactive component in the presence of a blowing agent. A composite article is made by forming an elastomeric layer on the outer surface of the polyurethane foam core. Due to the presence of the phosphite during reaction of the isocyanate component and the isocyanate-reactive component to make the isocyanate prepolymer, more efficient use of the phosphite is made, and the full color-reducing effect of the phosphite on the polyurethane foam is realized. | 09-03-2009 |
20090292036 | TRIMER AND ALLOPHANATE MODIFIED ISOCYANATES, A PROCESS FOR THEIR PRODUCTION, FOAMS COMPRISING THESE MODIFIED ISOCYANATES, AND A PROCESS FOR THE PRODUCTION OF THESE FOAMS - This invention relates to stable liquid, trimer and allophanate-modified isocyanates, a process for the production of these isocyanates, foams prepared from these isocyanates and a process for the production of these foams. | 11-26-2009 |
20100273907 | MODIFIED OPEN-CELL FOAMS AND PROCESS FOR THEIR PRODUCTION - Modified open-cell aminoplastic foams with a density in the range from 5 to 1,000 kg/m | 10-28-2010 |
20110034578 | POLYURETHANE COMPOSITION FOR CMP PADS AND METHOD OF MANUFACTURING SAME - Polyurethane composition based on a certain polyether and polyester prepolymer reaction mixture, wherein the composition is utilized in manufacturing chemical mechanical polishing/planarizing (CMP) pads. The CMP pads have low rebound and can dissipate irregular energy as well as stabilize polishing to yield improved uniformity and less dishing of the substrate. | 02-10-2011 |
20110201715 | Method For Producing Shaped Polyurethane Foam Wound Dressings - The invention relates to a process for producing shaped articles, where a foam layer which includes a polyurethane foam obtained by foaming a composition including an aqueous, anionically hydrophilicized polyurethane dispersion (I), and drying, is thermoformed where the thermoforming takes place at a temperature of from ≧100° C. to ≦200° C. and under a pressure of from ≧50 bar to ≦150 bar, and where additionally during the thermoforming the foam is compressed to ≧25% to ≦100% of its original volume. The foam can be stabilized using ethylene oxide/propylene oxide block copolymers. The invention further relates to shape articles obtainable in this way, and to the use thereof, preferably as wound dressings. | 08-18-2011 |
20120123008 | PROCESS FOR THE PREPARATION OF A POLYURETHANE POLYMER WITH SECONDARY HYDROXYL END GROUPS COMPRISING POLYESTER POLYOLS - The invention relates to a process for the preparation of a polyurethane polymer, comprising the step of reaction of | 05-17-2012 |
20120289622 | HYDROPHILIC ALIPHATIC POLYURETHANE FOAMS - The invention relates to hydrophilic, aliphatic polyurethane foams, which are accessible by reacting hydrophilic polyisocyanates in the presence of water. Due to the absorption properties thereof, the polyurethane foams are in particular suited for producing wound dressings, cosmetic articles or incontinence products. | 11-15-2012 |
20130267623 | THERMOPLASTIC RESIN FOAM AND PROCESS FOR PRODUCING THE SAME - Disclosed is a thermoplastic resin foam which is obtained by subjecting a thermoplastic resin composition containing a thermoplastic elastomer and an active-energy-ray-curable resin to foam molding to give a foamed structure, and irradiating the foamed structure with an active energy ray to allow the active-energy-ray-curable resin to form a cross-linked structure in the foamed structure. Also disclosed is a thermoplastic resin foam which is obtained by subjecting a thermoplastic resin composition containing a thermoplastic elastomer, an active-energy-ray-curable resin, and a thermal cross-linking agent to foam molding to give a foamed structure, irradiating the foamed structure with an active energy ray to allow the active-energy-ray-curable resin to form a cross-linked structure in the foamed structure, and heating the resulting foamed structure bearing the cross-linked structure to thereby allow the thermal cross-linking agent to form another cross-linked structure in the foamed structure. | 10-10-2013 |
20130274364 | SELF-CRUSHING POLYURETHANE SYSTEMS - Embodiments of the invention provide for polyurethane flexible foams that do not require a post production crushing step. These “self crushing” flexible foams neither collapse, skin peel, nor form voids upon demolding, and yet maintain excellent physical properties such as uniform cell sizes, high quality surface appearance, compression set, resistance to fatigue, etc. | 10-17-2013 |
20130324631 | POLYURETHANE RESIN - Disclosed is a polyurethane resin which is obtained by a reaction between a polyisocyanate component, which contains 1,4-bis(isocyanatomethyl)cyclohexane including not less than 80% by mole of trans isomers, and an active hydrogen compound component. | 12-05-2013 |
20130331473 | LOW DENSITY POLYURETHANE FOAMS - Embodiments of the invention provide for low density flexible polyurethane foams are reaction products of reaction systems including at least one polyol and at least one isocyanate including at least 50% by weight of an MDI based isocyanate. The flexible polyurethane foam has a density of less than about 33 kg/m | 12-12-2013 |
20140121290 | FLEXIBLE POLYURETHANE FOAM AND METHOD OF PRODUCING SAME - A flexible polyurethane foam comprises the reaction product of an isocyanate component and an isocyanate-reactive component in the presence of a blowing agent. The isocyanate component comprises a polymeric diphenylmethane diisocyanate component and a monomeric diphenylmethane diisocyanate component. The monomeric diphenylmethane diisocyanate component comprises 2,4′-diphenylmethane diisocyanate and 4,4′-diphenylmethane diisocyanate. The flexible polyurethane foam is substantially free of supplemental flame retardant additives and exhibits flame retardance under flammability tests according to California Technical Bulletin 117 regulations. | 05-01-2014 |
20140128491 | POLYURETHANE FOAM - A polyurethane foam having excellent shape-following properties, which exhibits favorable comfort when worn on the human body, both during movement and at rest. The polyurethane foam contains a toluene diisocyanate and a polyether polyol as the main components, has a glass transition temperature, defined as the temperature corresponding with the peak value of the loss tangent, of not less than 0° C. and not more than 40° C., and in the temperature range from not less than 0° C. to not more than 40° C., the loss tangent in the frequency range from not less than 0.1 Hz to not more than 100 Hz is 0.4 or greater, and the average value of the loss tangent in the frequency range from not less than 0.1 Hz to not more than 1 Hz is not greater than the average value of the loss tangent in the frequency range from not less than 10 Hz to not more than 100 Hz. | 05-08-2014 |
20140288204 | RIGID POLYURETHANE FOAMS WITH UNIFORM CELL SIZE DISTRIBUTION AND HOMOGENEOUS OPEN-CELL CONTENT - The present invention relates to predominantly open-cell, cold-deformable, rigid polyurethane foams which possess a uniform cell structure with similar cell sizes and similar physical properties, more particularly a similar open-cell content. These foams are suitable for producing automotive interior trim, more particularly roof linings and pillar trim. | 09-25-2014 |
20140378570 | Polyester Polyols Containing Diels-Alder or Ene Adducts - Polyester polyols containing adducts formed from Diels-Alder and Ene reactions are disclosed. Processes for making the polyester polyols and uses of the polyester polyols as polyurethane coatings, adhesives, sealants, elastomers, and foams are also disclosed. In some embodiments, the polyester polyols contain biorenewable adducts based on maleic anhydride and farnesene and have particular application in making rigid and flexible polyurethane or polyisocyanurate foams. | 12-25-2014 |
20160159967 | FUNCTIONAL POLYURETHANE FOAM - The present disclosure relates to functional polyurethane foams, and in particular, to functional polyurethane foams including a reaction product of a resin premix and an isocyanate component, wherein the resin premix includes a polyol component and a foaming agent, and the isocyanate component includes monomeric methylene diphenyl diisocyanate (MMDI) in 4 to 70% by weight, carbodiimide methylene diphenyl diisocyanate (CMDI) in 5 to 70% by weight and polymeric methylene diphenyl diisocyanate (PMDI) in 10 to 80% by weight, with respect to the total weight of the isocyanate component. The functional polyurethane foams of the present disclosure are capable of being used for vehicle seats and minimizing vibration transmissibility by absorbing a considerable portion of vibrations that occur while driving. | 06-09-2016 |
20160194431 | Polyisocyanate Polyaddition Polyol Manufacturing Process Using Stabilizers | 07-07-2016 |