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| Number | Title | Issue Date |
| 8134022 | Polyether carbonate polyols made via double metal cyanide (DMC) catalysis The present invention relates to a polyether carbonate polyol made by copolymerizing a starter molecule with carbon dioxide, at a pressure ranging from about 10 psia to about 2,000 psia, and an alkylene oxide, at a temperature ranging from about 50° C. to about 190... | 03/13/2012 |
| 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 |
| 8079752 | Process and mixing unit for the preparation of isocyanates by phosgenation of primary amines The invention relates to a mixer reactor of the rotor-stator type. This mixer reactor comprises a substantially rotationally symmetric housing which has a distributing chamber, a mixing chamber, a front plate that modifies the cross-section of the housing between th... | 12/20/2011 |
| 8063241 | Process for the preparation of toluene-diisocyanate The present invention relates to a process for the preparation of toluene-diisocyanate. In this process, toluenediamine is reacted with phosgene to give crude toluene-diisocyanate, the crude toluene-diisocyanate is purified by distillation, the distillation residue ... | 11/22/2011 |
| 8030522 | Process for the production of toluene diisocyanate The invention relates to a process for the production of toluene diisocyanate, in which the crude toluenediamine obtained from the hydrogenation is purified and then phosgenated. The purification step reduces the total amount of cyclic ketones to less than 0.1% by w... | 10/04/2011 |
| 8022200 | Process for the preparation of liquid, storage-stable organic isocyanates of low color number containing carbodiimide and/or uretonimine groups The invention relates to a process for the preparation of liquid, storage-stable isocyanate mixtures which are characterized by a low color number and which contain carbodiimide (CD) and/or uretonimine (UI) groups. This invention also relates to the isocyanate mixtu... | 09/20/2011 |
| 8003205 | Spray-applied polyurethaneurea composites based on polyisocyanate prepolymers containing soft-segments This invention relates to sprayable polyurethaneurea compositions, composite articles comprising at least one layer of these polyurethaneurea compositions and at least one layer of a polyurethaneurea foam forming composition, and to a process for the production of t... | 08/23/2011 |
| 7977501 | Polyether carbonate polyols made via double metal cyanide (DMC) catalysis The present invention relates to a polyether carbonate polyol made by copolymerizing a starter molecule with carbon dioxide, at a pressure ranging from about 10 psia to about 2,000 psia, and an alkylene oxide, at a temperature ranging from about 50° C. to about 190... | 07/12/2011 |
| 7951896 | Process for the production of NCO prepolymers that are stable to sedimentation, and their use The present invention relates to NCO-terminated prepolymers that are stable to sedimentation, to a process for the production of these NCO-terminated prepolymers, and to the production of polyurethanes from these NCO-terminated polymers. ... | 05/31/2011 |
| 7947778 | Aqueous dispersions The invention concerns hydrous compositions based on polychloroprene and hydroxylamine derivatives, processes for their production and their use as adhesives. The polychloroprene dispersions are stabilized by the addition of hydroxyalkylamine after removal of residu... | 05/24/2011 |
| 7919575 | Starter feed stream acidification in DMC-catalyzed process The process of the present invention provides for the manufacture of lower molecular weight DMC-catalyzed polyols than is possible using non-acidified continuous addition of starter (CAOS) feeds, by adding excess acid to a starter feed stream over that required for ... | 04/05/2011 |
| 7893189 | Poly(ether-ester) polyols and processes for their production The invention is directed to novel poly(ether-ester)polyols, processes for their production from monocarboxylic or polycarboxylic acid esters with one or more bound polyether chain(s). This invention also relates to the production of polyurethane materials in which ... | 02/22/2011 |
| 7893150 | Polymer dispersions in polyester polyols The present invention relates to polymer dispersions in polyester polyols, a process for producing them and their use for the production of polyurethanes, in particular microcellular polyurethanes. These polyester polyols have sulfur atoms and are free of olefinical... | 02/22/2011 |
| 7828991 | Polyether polyols based on cashew nutshell liquid and flexible foams This invention relates to novel polyether polyols which are prepared by alkoxylation of renewable resource materials, and particularly cashew nutshell liquid (CNSL), and to a process for the preparation of these novel polyether polyols. This invention also relates t... | 11/09/2010 |
| 7825276 | Process for the preparation of liquid, storage-stable organic isocyanates containing carbodiimide and/or uretoneimine groups The invention relates to a process for the preparation of liquid, storage-stable isocyanate mixtures of low color number containing carbodiimide (CD) and/or uretonimine (UI) groups, the isocyanate mixtures obtainable by this process and the use thereof for the prepa... | 11/02/2010 |
| 7781624 | Process for the preparation of nitrobenzene by adiabatic nitration This invention relates to a process for the continuous preparation of nitrobenzene. This process comprises the adiabatic nitration of benzene with a mixture of sulfuric acid and nitric acid, in which the sum of the concentrations in the reaction zone of the metal io... | 08/24/2010 |
| 7776969 | Allophanate-modified stabilizers and the polymer polyols prepared from these stabilizers This invention relates to novel ethylenically unsaturated macromers, preformed stabilizers prepared from these novel macromers, polymer polyols prepared from either the novel ethylenically unsaturated macromers or the preformed stabilizers, and to processes for the ... | 08/17/2010 |
| 7772353 | Fast curing aliphatic RIM elastomers This invention relates to polyurethane elastomers and to a process for their production. These elastomers comprise the reaction product of a (cyclo)aliphatic isocyanate component having an NCO group content of about 20 to about 45%, with an isocyanate-reactive compo... | 08/10/2010 |
| 7772330 | Process for the preparation of polyether polyols The present invention provides a process for conditioning double metal cyanide (DMC) catalysts, which are employed in the preparation of polyether polyols based on starter compounds having active hydrogen atoms, the preparation of polyether polyols using the conditi... | 08/10/2010 |
| 7772321 | Polymer dispersions in polyester polyols The present invention relates to polymer dispersions in polyester polyols, a process for producing them and their use for the production of polyurethanes, in particular microcellular polyurethanes. These polyester polyols have sulfur atoms and are free of olefinical... | 08/10/2010 |
| 7763759 | Continuous process for the manufacture of nitrobenzene The invention relates to a continuous process for the manufacture of nitrobenzene. This process comprises the nitration of benzene with nitrating acid that contains at least 3.0 wt. % of nitric acid and at least 67.0 wt. % of sulfuric acid, in a reaction space in wh... | 07/27/2010 |
| 7763683 | Polyester polyols, a process for the production thereof and the use thereof The present invention relates to polyester polyols with low functionality and a process for their production, to prepolymers prepared from these polyester polyols and a process for their production, and to polyurethanes prepared from these polyester polyols and/or f... | 07/27/2010 |
| 7759423 | Polymer polyols with ultra-high solids contents The present invention relates to ultra-high solids content polymer polyols which have good filterability while maintaining a reasonable viscosity, and to a process for the preparation of these ultra-high solids contents polymer polyols. These polymer polyols compris... | 07/20/2010 |
| 7750058 | Process for preparing closed-cell water-blown rigid polyurethane foams having improved mechanical properties The present invention is directed to a process for preparing water-blown rigid polyurethane foams having at least an 80% closed-cell content which involves reacting a) at least one polyol mixture which is composed of (i) at least one polymer polyol; (ii) at least on... | 07/06/2010 |
| 7745659 | Process for the production of liquid, storage-stable organic isocyanates with a low colour index having carbodiimide- and/or uretone imine groups The invention relates to a process for the production of liquid, storage-stable isocyanate mixtures with a low color index having carbodiimide-(CD) and/or uretone imine (UI) groups, the isocyanate mixtures that can be obtained by this process and their use for the p... | 06/29/2010 |
| 7714148 | Process for the preparation of liquid, storage-stable organic isocyanates containing carbodiimide and/or uretoneimine groups The invention relates to a process for the preparation of liquid, storage-stable isocyanate mixtures of low color number and which contain carbodiimide (CD) and/or uretonimine (UI) groups, the isocyanate mixtures obtainable by this process, and to a process for the ... | 05/11/2010 |
| 7687599 | Poly(ether-ester) polyols and processes for their production The invention is directed to novel poly(ether-ester)polyols, processes for their production from monocarboxylic or polycarboxylic acid esters with one or more bound polyether chain(s). This invention also relates to the production of polyurethane materials in which ... | 03/30/2010 |
| 7678840 | Reduction of MDI emissions in cavity filling NVH polyurethane foams This invention relates to reactive systems for the production of cavity filling polyurethane foams for NVH (noise vibration and harshness) application areas in which the system exhibits reduced isocyanate emissions. These foams comprises a polyisocyanate comprising ... | 03/16/2010 |
| 7678729 | Process for the preparation of polyether polyols The present invention provides a process for conditioning double metal cyanide (DMC) catalysts, which are employed in the preparation of polyether polyols based on starter compounds having active hydrogen atoms, the preparation of polyether polyols using the conditi... | 03/16/2010 |
| 7666971 | Amide/urea-modified liquid diphenylmethane diisocyanates This invention relates to novel liquid, storage-stable, amide-modified diphenylmethane diisocyanates and to a process for the production of these liquid, storage-stable diphenylmethane diisocyanates. ... | 02/23/2010 |
| 7662989 | Process for the preparation of liquid, storage-stable organic isocyanates containing carbodiimide and/or uretonimine groups The invention relates to a process for the preparation of liquid, storage-stable isocyanate mixtures of low color number containing carbodiimide (CD) and/or uretonimine (UI) groups, the isocyanate mixtures obtainable by this process, the preparation of blends with f... | 02/16/2010 |
| 7645900 | Process for the preparation of isocyanates The present invention relates to a process for the preparation of isocyanates by reacting the appropriate amines with phosgene, condensing the gas mixture thereby obtained, stripping the liquid phase thereby obtained and returning the solvent so retained in liquid f... | 01/12/2010 |
| 7638197 | Composite elements made from polyurethane materials having surfaces consisting of thermoplastic or metallic layers and a process for their production The present invention relates to composite elements constructed from an outer layer (i), a fiber-reinforced polyurethane (PU) material which contains in-mold release additives as a supporting layer (ii), and optionally, a decorative inner layer (iii). This invention... | 12/29/2009 |
| 7632911 | Liquid modified diphenylmethane diisocyanates This invention relates to novel liquid, storage-stable diisocyanates and to a process for the preparation of these liquid, storage-stable diisocyanates. These comprise diphenylmethane diisocyanate and at least one compound which contains both an amide group and a hy... | 12/15/2009 |
| 7622542 | Plastic moldings from optionally filled polyurethanes and their use The present invention relates to plastic moldings that are prepared from optionally filled polyurethanes. The plastic molding of the present invention exhibit high tenacity, flexural strength and heat stability. This invention also relates to a process for the prepa... | 11/24/2009 |
| 7595422 | Process for conditioning isocyanates The invention relates to a novel process for conditioning isocyanates. The purpose of conditioning of isocyanates or of mixtures of isocyanates is to remove organophosphorus components in a suitable manner such that the organophosphorus compounds no longer interfere... | 09/29/2009 |
| 7556756 | Production method of polyurethane foam molded article The present invention provides a method for producing a polyurethane foam molded article from a polyisocyanate compound, a polyol mixture containing polyol, a catalyst and a crosslinking agent, and a blowing agent, said method comprising continuously injecting the p... | 07/07/2009 |
| 7540985 | Method of producing a polyurethane foam molded article A method of producing a polyurethane molded article is provided, in which one molding machine which can provide distinctly polyisocyanate component(s) and two kinds of polyol components is used, and prior to completion of the feed of a first polyurethane mixture liq... | 06/02/2009 |
| 7538162 | Process for the production of polyoxyalkylene containing polyols from phenol condensation products This invention relates to a one-stage process for the production of polyoxyalkylene containing polyols having equivalent weights of about 150 to about 6000 and functionalities of about 2 to 8. The process comprises (1) mixing (a) an organic compound having a hydroxy... | 05/26/2009 |
| 7528283 | Process for preparing diamines and polyamines from the diphenylmethane series The invention provides an improved process for preparing diamines and polyamines from the diphenylmethane series by reacting aniline and formaldehyde in the presence of an acid catalyst, the improvement involving the aniline containing less than about 3 wt. % of dia... | 05/05/2009 |
