Patent application number | Description | Published |
20110218259 | PREPARING POLYURETHANES - The invention relates to a process for preparing polyurethanes, which comprises reacting
| 09-08-2011 |
20110218324 | PREPARING POLYETHER ALCOHOLS - In a process for preparing a polyether alcohol d1) by reaction of a) at least one compound having at least three hydrogen atoms reactive with alkylene oxides and a molecular weight Mn of not more than 600 g/mol with b) an alkylene oxide by using c) a catalyst, said reaction is carried out in the presence of a polyether alcohol d) having a hydroxyl number of 100-800 mg KOH/g and a functionality of 1.5 to 8. | 09-08-2011 |
20110263742 | PROCESS FOR PREPARING POLYETHER ALCOHOLS - The invention relates to a process for preparing polyether alcohols by reacting a) aromatic amines with b) alkylene oxides in the presence of c) a catalyst, wherein the alkylene oxide b) comprises at least 90% by weight, based on the weight of the component b), of propylene oxide and an amine is used as catalyst c). | 10-27-2011 |
20120067499 | FIXING OF VACUUM INSULATION PANELS IN COOLING APPARATUSES - A polyurethane foam reaction system to fix over an area of a vacuum insulation panel (VIP) on an inside of an outer wall of a cooling apparatus and/or on a outside of a wall of a inner container of the cooling apparatus, where the reaction system includes the following components: an organic and/or a modified organic polyisocyanate; at least one high molecular weight compound having at least two hydrogen atoms which are reactive toward a isocyanate group; a blowing agent; a catalyst; and a foam stabilizer, where the components are selected to obtain a closed-cell polyurethane foam having a free-foamed density of 50 to 1100 g/l and a compressive strength of ≧15 kPa, excluding rigid integral foams. | 03-22-2012 |
20120225280 | COMPOSITE ELEMENTS - The invention relates to a composite element comprising | 09-06-2012 |
20120232180 | PROCESS FOR THE PRODUCTION OF POLYURETHANE RIGID FOAMS - The present invention relates to a process for the production of polyurethane rigid foams by reaction of polyisocyanates with compounds with at least two hydrogen atoms reactive with isocyanate groups in the presence of propellants. | 09-13-2012 |
20120248125 | DYNAMICALLY EVACUABLE DEVICES COMPRISING ORGANIC AEROGELS OR XEROGELS - The present invention relates to a dynamically evacuable, electrically operated device comprising a coherently evacuable region and a temperature-controllable useful region, which is thermally insulated from the ambient temperature by the coherently evacuable region, and also a means for actively maintaining a vacuum, such that the pressure in the coherently evacuable region of the device is constantly within a defined pressure range, said coherently evacuable region making up at least 20% by volume of the total volume which is occupied by a porous and/or cellular insulating material in the device, and said coherently evacuable region comprising at least one organic aerogel and/or organic xerogel. | 10-04-2012 |
20120259030 | PRODUCING PU RIGID FOAMS - The present invention relates to a process for producing polyurethane (PU) rigid foams by reaction of polyisocyanates with compounds having two or more isocyanate-reactive hydrogen atoms in the presence of blowing agents. | 10-11-2012 |