Patent application number | Description | Published |
20090155520 | FLOOR COVERING WITH VISCOELASTIC DAMPENING PROPERTIES - The present invention concerns a floor covering, such as a carpet, containing a first textile planar element and a first layer which is at least partially connected to the first textile planar element over their surfaces, wherein the first layer contains viscoelastic polymer foam. The floor covering according to the invention is characterized in that the first textile planar element has a modulus of elasticity of ≧0.5 N/mm | 06-18-2009 |
20110236671 | METHOD FOR PRODUCING POLYESTER POLYOLS HAVING LOW AMOUNTS OF DIOXANE WASTE - Polyester polyols are produced from at least one carboxylic acid hydride and diethylene glycol by a process in which the formation of 1,4-dioxane is suppressed. These polyester polyols are useful for producing polyurethane (PUR) and polyisocyanurate (PIR) foams and metal composite elements containing these PUR or PIR foams. | 09-29-2011 |
20120121887 | METHOD FOR PREPARING A FOAM COMPOSITE ELEMENT - The invention relates to a method for preparing a foam composite element, including the steps of preparing a top layer, applying an adhesion promoter layer to the top layer, wherein the adhesion promoter layer includes a modified isocyanate, and applying a foam layer including polyurethane and/or polyisocyanurate to the adhesion promoter layer. On application, the modified isocyanate in the adhesion promoter layer has a content of free isocyanate groups of from ≧10% to ≦29%. The invention further relates to the use of a modified isocyanate having a content of free isocyanate groups of ≧10% to ≦29% as an adhesion promoter in the preparation of foam composite elements and foam composite elements obtained by the method according to the invention. | 05-17-2012 |
20120225278 | METHOD FOR PRODUCING A FOAM COMPOSITE ELEMENT - The invention relates to a process for the production of a foam composite element, comprising the steps of providing a facing, applying adhesion promoter, and applying a foam layer comprising polyurethane and/or polyisocyanurate to the adhesion promoter, characterised in that the adhesion promoter consists of at least one compound selected from the group consisting of polyether polyol (B.1), polymer polyol (B.2), polyurea dispersion (B.3), polyester polyol (B.4) and PIPA polyol (B.5). The invention relates further to the use of at least one compound selected from the group consisting of polyether polyol, polymer polyol and polyurea dispersion as adhesion promoter in the production of foam composite elements, as well as to foam composite elements produced by the process according to the invention. | 09-06-2012 |
20120225279 | POLYURETHANE/POLYISOCYANURATE FOAM HAVING IMPROVED ADHESION PROPERTIES - A polyurethane/polyisocyanurate foam is obtainable from the reaction of A) a polyol component comprising A1) an aromatic polyester polyol, A2) a polyether polyol started on a carbohydrate polyol and A3) a polyether polyol started on ethylene glycol, wherein the total hydroxyl number of the polyol component A) is from ≧150 mg KOH/g to ≦300 mg KOH/g; with B) a polyisocyanate component, wherein the equivalent ratio of NCO groups to the sum of the hydrogen atoms reactive towards NCO groups is from ≧110:100 to ≦200:100. This foam has improved adhesion properties to facings and is suitable for the production of composite elements without requiring the use of an additional adhesion promoter. | 09-06-2012 |
20130183880 | SLIGHTLY MODIFIED PREPOLYMERS AND THEIR USES - An isocyanate-terminated prepolymer C having an NCO content of from ≧26% by mass to ≦31.0% by mass is obtainable from the reaction of an isocyanate composition A having a viscosity at 25° C. of from ≧60 mPas to ≦800 mPas, comprising from ≧25% by mass to ≦60% by mass MDI and from ≧40% by mass to 75% by mass pMDI, wherein the sum of the amounts of those components is ≦100% by mass, with a bifunctional polyester ether polyol B having an OH number of ≧200 mg(KOH)/g and ≦500 mg(KOH)/g, obtained from the reaction of a dicarboxylic acid/dicarboxylic acid derivative with at least one polyol and with an epoxide, wherein the polyester ether polyol B is used in amounts of from ≧1.5% by mass to ≦6.0% by mass, based on the sum of the masses of A and B. The invention further provides a PUR/PIR polymer produced from the prepolymer C, its use and composite elements based thereon. | 07-18-2013 |
20140370267 | COMPOSITE ELEMENTS WITH IMPROVED DIMENSIONAL STABILITY - The present invention relates to a polyurethane/polyisocyanurate foam with improved dimensional stability. It relates further to the use thereof in the production of metal composite elements, to metal composite elements produced therewith, and to a method for producing metal composite elements. | 12-18-2014 |