Patent application number | Description | Published |
20090149582 | SELF-EXTINGUISHING THERMOPLASTIC POLYURETHANES, THEIR USE, AND PROCESSES FOR THEIR PREPARATION - The present invention relates to self-extinguishing thermoplastic polyurethanes, a process for their preparation and their use. | 06-11-2009 |
20090189314 | TRANSPARENT THERMOPLASTIC POLYURETHANES HAVING LOW HAZE AND GOOD PROCESSABILITY, METHODS OF MAKING THE SAME, AND USES THEREFOR - Light-stable, thermoplastic polyurethanes with good processability and having an ASTM D-1003 haze value of less than 10%, the polyurethane prepared by a process comprising: reacting: (a) a diisocyanate component comprising 1,6-hexamethylene diisocyanate; (b) a chain extension component consisting of (b1) 1,4-di(β-hydroxyethyl)hydroquinone and (b2) at least one chain extender selected from the group consisting of diols having a 2 or 3 carbon atom chain length between the two OH groups, in a molar ratio of chain extender (b1) to chain extender (b2) of 10:1 to 1:4; and (c) at least one polyol component having a number average molecular weight of 450 to 10000 g/mol, and an average number of Zerewitinoff-active hydrogen atoms of at least 1.8 to at most 3.0; wherein the ratio of isocyanate groups in component (a) to isocyanate-reactive groups in components (b) and (c) is 0.9:1 to 1.1:1. | 07-30-2009 |
20090192274 | THERMOPLASTIC POLYURETHANES AND THEIR USE - Thermoplastic polyurethanes and molding compositions containing the same having improved surface resistance (writing and scratch resistance) and good industrial processability, and the use thereof, such polyurethanes prepared by reacting: (a) one or more organic diisocyanates; (b) a chain extender comprising at least one low molecular weight polyol having on average at least 1.8 and not more than 3.0 Zerewitinoff-active hydrogen atoms and a number-average molecular weight M | 07-30-2009 |
20090299002 | Process for the preparation of self-extinguishing thermoplastic polyurethanes - The present invention relates to a process for the preparation of self-extinguishing thermoplastic polyurethanes which optionally contain conventional additives and/or auxiliary substance. | 12-03-2009 |
20110306734 | THERMOPLASTICALLY PROCESSABLE POLYURETHANES BASED ON SUCCINIC ACID PROPIONATES - The present invention relates to a thermoplastically processable polyurethane elastomer having a hardness of 50 Shore A to 70 Shore D (ISO 868), which are obtained from reacting components comprising a) one or more linear polyester diols having a functionality from 1.8 to 2.2, wherein the one or more linear polyester diols comprise succinic acid 1,3-propionate and have an average molecular weight from 1,950 to 4,000 g/mol. b) one or more organic diisocyanates, and c) one or more diols having a molecular weight from 60 to 350 g/mol, wherein the components have a molar NCO:OH ratio of from 0.9:1 to 1.1:1. | 12-15-2011 |
20120289650 | PROCESSES FOR THE PREPARATION OF AQUEOUS DISPERSIONS BASED ON POLYURETHANEUREAS - The present invention relates to processes for the preparation of aqueous dispersions based on polyurethaneureas and to the use of these dispersions in coating agents. | 11-15-2012 |
20130144007 | AQUEOUS POLYURETHANE-POLYUREA DISPERSIONS - The invention relates to a method for producing aqueous polyurethane-polyurea dispersions, aqueous polyurethane-polyurea dispersions produced by this method and their use to produce coating agents and adhesives. | 06-06-2013 |
20130344289 | Aqueous 1K Coating System and Method for Improving the Appearance of Grained Wood Surfaces - The invention is directed to a one-component (1K) coating system comprising an aqueous polyurethane and/or polyurethane-polyacrylate polymer dispersion and one or more compounds of elements of sub-groups 5 and/or 6 of the periodic table in which the particular element has an oxidation state of at least +4. The invention also relates to a method for improving the appearance of grained wood surfaces, the use of a coating system according to the invention for the coating of grained wood surfaces and a grained wood surface comprising a coating obtained by applying a coating system according to the invention and subsequent drying of the coating system. | 12-26-2013 |