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| Number | Title | Issue Date |
| 8124665 | Decorative molded foams with good impact resistance and fire retardant properties This invention relates to fire-resistant, flexible, molded, medium density polyurethane foams. These foams typically have a density of from 10 to 30 pcf. The foams are the reaction product of a) at least one polyester polyol, b) at least one highly branched polyethe... | 02/28/2012 |
| 7414080 | Polyurethane polishing pad The polishing pad is suitable for planarizing at least one of semiconductor, optical and magnetic substrates. The polishing pad includes a cast polyurethane polymeric material formed with an isocyanate-terminated reaction product formed from a prepolymer reaction of... | 08/19/2008 |
| 7390867 | Isocyanate adducts The invention relates to isocyanate adducts which can be prepared by reacting at least one polyisocyanate with compounds having at least two hydrogen atoms which are reactive toward isocyanate groups and have a crystalline content of less than 10 J/g determined by d... | 06/24/2008 |
| 7361695 | Process to manufacture flexible polyurethane foams The present invention is to the production of flexible polyurethane foam in the absence of an amine catalyst. The reactivity of the foam forming system can be controlled by the addition of an autocatalytic polyol containing a tertiary amine where the amount of autoc... | 04/22/2008 |
| 7347850 | Adhesion barriers applicable by minimally invasive surgery and methods of use thereof Biocompatible crosslinked polymers, and methods for their preparation and use with minimally invasive surgery applicators are disclosed. The disclosure includes compositions and methods for in situ formation of hydrogels using minimally invasive surgical techniques.... | 03/25/2008 |
| 7338983 | Low density polyurethane foam, method of producing, and articles comprising the same A method for producing a cured, low-density polyurethane foam, the method comprises frothing a reactive polyurethane-forming composition comprising an isocyanate-containing component, an active hydrogen-containing component reactive with the isocyanate-containing co... | 03/04/2008 |
| 7326738 | Composition and process for forming a flexible polyurethane foam sealing device The subject invention provides a composition and a process for forming a flexible polyurethane foam sealing device having improved compression set properties at increased temperatures. The sealing device is formed without the use of chemical blowing agents. The comp... | 02/05/2008 |
| 7323119 | Color stabilization of hydroquinone hydroxyethyl ether products The present invention relates to the color stabilization of hydroquinone hydroxyethyl ethers by phosphite compounds containing the bis-cyclic structure of spiro phosphites, both rings being attached to the same tertiary carbon atom in the phosphite molecule. ... | 01/29/2008 |
| 7307136 | Polyurethane elastomers A polyisocyanate-based elastomer having a ratio of the storage modulus (E′) at 20° C. and the storage modulus (E′) at 120° C. of between 0.75 and 1.5, a tan δ at 100° C. of less than 0.1 and a maximum value of the tan δ of more than 0.8, the tan δ being th... | 12/11/2007 |
| 7300961 | Polyol compositions useful for preparing dimensionally stable, low density water-blown rigid foams and the processes related thereto The present invention relates to polyol compositions which can be used to produce dimensionally stable, low density water-blown rigid foams which have acceptable compressive strengths and acceptable k-factors. In one embodiment of the present invention, the polyol c... | 11/27/2007 |
| 7268170 | Foam modifier, foams prepared from this novel foam modifier and a process for the preparation of these foams This invention relates to novel foam modifiers which can be used to prepare flexible foams. These novel foam modifiers provide improved processability and improved properties of the resultant flexible foams. The present invention also relates to the process of prepa... | 09/11/2007 |
| 7183330 | Silicone surfactants for rigid polyurethane foam made with hydrocarbon blowing agents A method for making a rigid polyurethane foam by reacting a polyisocyanate and a polyol in the presence of a urethane catalyst, a blowing agent and a silicone surfactant characterized by employing a blowing agent comprising a C4 or C5 hydrocarbon, or mixtures thereo... | 02/27/2007 |
| 7169824 | Process for preparing a flexible polyurethane foam Process for preparing flexible polyurethane foam by reacting an MDI-based polyisocyanate and a polyether polyol with a high oxyethylene content in a mold. ... | 01/30/2007 |
| 7129279 | Lightweight tire support and composition and method for making a tire support A polyurethane-polymer composition suitable for preparing a lightweight tire support includes at least one isocyanate, at least one polyol, and at least one chain extender. A polyurethane-polymer composition can also include an additive such as a catalyst, a filler,... | 10/31/2006 |
| 7118761 | Method for producing a silver-containing wound care device Wound care devices having a topically applied silver-based antimicrobial finish are provided. The finish comprises at least one silver ion-containing compound and at least one binder compound. The finish may be applied to a target substrate, such as a fiber, fabric,... | 10/10/2006 |
| 7066724 | Apparatus for flatproofing a tire and wheel assembly An apparatus is disclosed for flatproofing a tire and wheel assembly with a flexible, lightweight foam-fill by supplying at least two polyurethane reactive materials to a static mixer. The static mixer mixes the reactants, and a nucleating gas is supplied to the mix... | 06/27/2006 |
| 7009034 | Biocompatible crosslinked polymers Biocompatible crosslinked polymers, and methods for their preparation and use, are disclosed in which the biocompatible crosslinked polymers are formed from water soluble precursors having electrophilic and nucleophilic functional groups capable of reacting and cros... | 03/07/2006 |
| 7008974 | Composition for preparing rigid polyurethane foam having good demolding property Disclosed is a composition for preparing a rigid polyurethane foam having a good demolding property by defining polyol component and catalyst component. The polyol component comprises 40˜60 wt. % of polyol obtained by polymerization with an organic oxide using sorb... | 03/07/2006 |
| 6994804 | Color stabilization of hydroquinone hydroxyethyl ether products The present invention relates to the color stabilization of hydroquinone hydroxyethyl ethers by phosphite compounds containing the bis-cyclic structure of spiro phosphites, both rings being attached to the same tertiary carbon atom in the phosphite molecule. ... | 02/07/2006 |
| 6884824 | Process for preparing an elastomer Process for preparing a polyurethane elastomer having an apparent overall density of more than 150 kg/m3 comprising reacting a polyisocyanate and an isocyanate-reactive composition, optionally in the presence of water, wherein the reaction is conducted at... | 04/26/2005 |
| 6861454 | Raw materials for anti-cracking polyurethane foams and method for preparing the same Raw materials for anti-cracking polyurethane foams comprises: a mixed polyol 100 weight parts; an isocyanate 140˜180 weight parts; a catalyst 1.0˜3.0 weight parts; water 1˜2.5 weight parts; a foam blowing agent 30.0˜35.0 weight parts; and an additive 1.0˜3.0 we... | 03/01/2005 |
| 6806342 | Process for preparing a polyurethane material Process for preparing a polyurethane material having no glass transition temperature below 25 C, which process involves using a polyoxyethylene polyoxypropylene polyol having a high oxyethylene content and a polyisocyanate having a high 4,4′-diphenylmethane diisoc... | 10/19/2004 |
| 6780895 | Polyurethane carpet backings with improved tuft bind Improvements in tuft bind and/or elongation of tufted carpet may be achieved by selecting, as components of a tuft bind adhesive, one or more of: i) a polyol component comprising a low or ultra-low unsaturation polyoxypropylene polyol optionally containing up to 30 ... | 08/24/2004 |
| 6706844 | Polyurethane products produced from aluminum phosphonate catalyzed polyetherols A method for the production of polyurethane products using very low unsaturation polyether polyols prepared in the presence of aluminum phosphonate catalysts is disclosed. Reaction products of the process include various polyurethane products including foams, coatin... | 03/16/2004 |
| 6673849 | Composites comprising a hydrophilic polyester-polyurethane foamed material for vehicle interior trim Composites comprising a polyurethane core and an outer facing layer are described in the present invention. Suitable polyurethane cores are hydrophilic polyester-polyurethane foamed materials which comprise the reaction product of: (a) at least one po... | 01/06/2004 |
| 6617368 | Isotropic rigid foams This invention relates to a process for the preparation of an isotropic rigid foam comprising the step of reacting: (A) an organic polyisocyanate component selected from the group consisting of: (1) a polymethylene poly(phenylisocyanate) and (2) an NCO-te... | 09/09/2003 |
| 6590057 | Polyurethane elastomers, process for their production and use thereof The invention provides polyurethane elastomers (PU elastomers), a process for their production using special catalyst mixtures and their use in particular for the manufacture of shoe soles.... | 07/08/2003 |
| 6572791 | Electroconductive elastic member, elastic member and image formation equipment There is disclosed an elastic member constituted of polyurethane foam obtained by agitationally mixing with water, a urethane prepolymer synthesized from a polyol and a polyisocyanate, characterized by simultaneously employing as polyols, a (A) polymer po... | 06/03/2003 |
| 6569913 | Isocyanate-terminated prepolymers Novel isocyanate-terminated prepolymers and a process for making flexible polyurethane foams thereof. The prepolymers are made from polyether polyols having a high equivalent weight.... | 05/27/2003 |
| 6569352 | Phthalic anhydride based polyester-ether polyols and urethane prepolymers produced therefrom Disclosed are polyester-ether polyols and their use in urethane prepolymers, urethane foams and non-foam urethane coatings, adhesives, sealants and/or elastomers. Methods for producing such polyester-ether polyols are disclosed, along with methods for pro... | 05/27/2003 |
| 6521676 | Use of polyether-polyurethane for safety clothing Safety clothing is produced by molding polyether-based plastic-forming compositions. Particularly preferred articles of safety clothing produced by this process are safety shoe soles.... | 02/18/2003 |
| 6495611 | Polyisocyanate polyaddition products The polyisocyanate polyaddition products comprise hydrophobic compounds plus at least one further compound selected from the group consisting of: (i) organic, cyclic compounds having a molecular weight of from 200 to 3000 g/mol, (ii) salts of metals of tr... | 12/17/2002 |
| 6461536 | Stable polyester polyol composition A polyester polyol composition comprising a phthalic anhydride-initiated polyester polyol, a C4 -C6 hydrocarbon blowing agent, and an oxyethylated fatty acid or fatty alcohol compatibilizing agent having an HLB of from about 7 to abo... | 10/08/2002 |
| 6451430 | Polyurethane, foam-polyester composite structure and method A composite polyurethane foam structure and method of preparing the composite structure, which structure includes a semirigid-rigid polyurethane foam layer having bonded, free, unreacted, ethylenically unsaturated groups like allyl or acrylic groups. The ... | 09/17/2002 |
| 6433032 | Process for rigid polyurethane foams Process for the preparation of open celled rigid polyurethane or urethane-modified polyisocyanurate foams by reaction of a polyfunctional isocyanate-reactive composition with a polyisocyanate composition comprising a prepolymer of NCO-value 21-30% based o... | 08/13/2002 |
| 6420446 | Polyurethane prepared from sorbitol-branched polyesters Polyurethanes synthesized from sorbitol-branched polyester made by esterification of a diacid (or anhydride thereof diol, and sorbitol (or mixtures of same with other polyols).... | 07/16/2002 |
| 6420445 | Polyurethane and polyurethane/urea heat-cured and moisture-cured elastomers with improved physical properties Elastomers with improved physical properties, particularly hardness, resilience, tear strength, and compression set, may be prepared by the chain extension or moisture cure of isocyanate-terminated prepolymers prepared from a polyol component comprising a... | 07/16/2002 |
| 6420443 | Additives for enhanced hydrocarbon compatibility in rigid polyurethane foam systems A process for preparing hydrocarbon blown rigid polyurethane foam using a novel compatibilizing agent. The compatibilizing agent is an alkoxylate adduct of a triglyceride with a hydroxyl value of about 100 or less. The triglyceride adduct has an ethylene ... | 07/16/2002 |
| 6395798 | Low density microcellular elastomers based on isocyanate-terminated prepolymers Low density microcellular polyurethane foams suitable for athletic shoe midsoles and other applications are prepared by diol chain extension of 12 to 16% free NCO isocyanate-terminated prepolymers prepared by reacting an excess of di- or polyisocyanate wi... | 05/28/2002 |
| 6291538 | Process for preparing polyurethane foam A process for preparing a polyurethane foam comprising, reacting a polyol composition comprising a polyol component containing a polyoxypropylene-based polyol having an unsaturation degree of not more than 0.06 meq/g, a catalyst and water with a polyisocy... | 09/18/2001 |
