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| Number | Title | Issue Date |
| 5218111 | Process for the production of polyisocyanates containing uretdione and isocyanurate groups The present invention relates to dimerization catalysts which are suitable for the dimerization of organic isocyanates by heterogeneous catalysis, wherein the catalysts contain tertiary phosphines adsorbed onto adsorbent, porous carrier materials having a... | 06/08/1993 |
| 5214104 | Compositions suitable as binders and their use in coating and sealing compositions The present invention relates to compositions suitable for use as binders and containing A) 10 to 99 parts by weight of at least one copolymer which has a weight average molecular weight of 1500 to 75,000, is prepared from olefinically unsaturated compoun... | 05/25/1993 |
| 5179143 | Process for the preparation of compression molded materials This invention relates to a process for the preparation of compression molded materials comprising compressing a substrate with a binder based on polyisocyanates, wherein said binder comprises polyisocyanates, compounds containing at least two isocyanate ... | 01/12/1993 |
| 5134220 | Polyester and polyester carbonate based on 3,8-dihydroxy-5a, 10b-diphenylcoumarano-2',3',2,3-coumarane Polyesters and polyester carbonates of a) aromatic diphenols, b1) aliphatic and/or cycloaliphatic and/or aromatic dicarboxylic acids and optionally b2) carbonic acid, containing b1) in a quantity of 0.1 to 100 mol-% and b2 | 07/28/1992 |
| 5130466 | Diisocyanate, a process for its production and its use The present invention is directed to a diisocyanate which corresponds to the formula ##STR1## The present invention is also directed to the preparation of this diisocyanate and to its use for the production of polyisocyanate polyaddition product... | 07/14/1992 |
| 5128432 | Aliphatic polyurethanes containing acryloyl groups and a process for their preparation The present invention relates to aliphatic polyurethanes which contain acryloyl groups and are based on the reaction product (at an NCO/OH equivalent ratio of 0.5:1 to 1:1) of a) 1.0 mole of a diisocyanate component containing at least 50 equivalent perce... | 07/07/1992 |
| 5109035 | Process for the production of moldings or films of cross-linked polyisocyanate polyadducts and the moldings thus obtained The present invention is directed to a process of thermoplastically molding a specific foam composition. The composition is formed by reacting an isocyanate and a relatively low molecular weight tri or higher polyol in the presence of a blowing agent.... | 04/28/1992 |
| 5093450 | Process for the preparation of ethylene/vinyl acetate copolymers with increased strength, the new ethylene/vinyl acetate copolymers and their use Ethylene/vinyl acetate solution polymers with increased strength and low gel content may be prepared by the copolymerization of small quantities of acryloyl or methacryloyl compounds.... | 03/03/1992 |
| 5069857 | Process for the production of molded articles by deep-drawing prefabricated polyurethane(urea) parts or by pressing fragmented polyurethane(urea) material The invention is directed to a process for the production of molded articles by deep-drawing a prefabricated polyurethane(urea) part produced from a polyisocyanate polyaddition product having a specific gravity of at least 0.8 g/cm3. The part i... | 12/03/1991 |
| 5068302 | Polysiloxane-polycarbonate block copolymers based on certain dihydroxydiphenylcycloalkanes Polydiorganosiloxane-polycarbonate block copolymers based on dihydrodiphenylcycloalkanes corresponding to formula (I) ##STR1## in which R1, R2 independently of one another represent hydrogen, halogen, preferably chlorine or brom... | 11/26/1991 |
| 5064885 | Stabilized aliphatic polycarbonates This invention relates to aliphatic polycarbonates including sequential copolymers based on cyclic aliphatic carbonates and esters and block copolymers of blocks of polymerised cyclic aliphatic carbonates and blocks of polymerised vinyl compounds stabiliz... | 11/12/1991 |
| 5064600 | Process for production of moldings or films from polyisocyanate polyadducts by rim procedure The present invention relates to a process for the preparation of moldings or films based on polyisocyanate polyadducts comprising thermoplastically molding, at a temperature of at least 50° C. and at a pressure of at least 5 bar, polyisocyanate polyaddu... | 11/12/1991 |
| 5063252 | Process for the production of plastics by the polyisocyanate polyaddition process and catalysts suitable for this process The present invention is directed to a process for the production of polyurethanes using catalysts based on triamino(imino)phosphoranes corresponding to formulas I, II or III ##STR1## wherein R, R', R" and R"' represent hydrocarbon substituents and n... | 11/05/1991 |
| 5061752 | Antistatic, thermoplastic moulding compounds based on aromatic vinyl polymers II Thermoplastic moulding compositions composed of I) 99.8-95% by weight of (A) 0-100% by weight of one or more graft polymers comprise the monomers styrene, -methyl styrene, methyl methacrylate or a mixture of 95-50% by weight of styrene, -methyl s... | 10/29/1991 |
| 5047184 | Process and vacuum mold for the manufacture of a textile covered cushion A vacuum mold and process for manufacturing a textile-covered cushion. The process broadly comprises back foaming, wherein (i) the cover is placed on the edge of a vacuum molding part at least partly containing a mold cavity and is stretched before a vacu... | 09/10/1991 |
| 5045226 | Polyisocyanate preparations containing latent tin catalysts and a process for their preparation Polyisocyanate preparations containing latent tin catalysts are made from an organic polyisocyanate and a reaction product of a sulfonyl isocyanate and an organic tin catalyst in which at least one tin-oxygen bond is present. The organic tin catalyst pref... | 09/03/1991 |
| 5043471 | Process for the preparation of polyisocyanates The present invention relates to a process for the preparation of a polyisocyanate comprising (a) thermally decomposing in a tube reactor a solution of an N-substituted carbamic acid ester corresponding to said polyisocyanate in a solvent used as decompos... | 08/27/1991 |
| 5043403 | Polycarbonates containing mesogenic compounds as end groups, their preparation and their use This invention relates to thermoplastic, aromatic polycarbonates in which mesogenic compounds corresponding to the following formula ##STR1## are incorporated as chain terminating agents, to their preparation by the known processes for the preparatio... | 08/27/1991 |
| 5039712 | Open-celled flexible polyurethane foams and a process for their production Open-celled, elastic, flexible polyurethane foams are made without using a chlorofluorocarbon blowing agent. A polyisocyanate is reacted with a polyether in the presence of water and from about 0.1 to abour 10% by weight (based on polyether) of an organic... | 08/13/1991 |
| 5039293 | Device for the manufacture of a composite part The present invention relates to a process and a device for the production of a composite part by the sequential introduction of several fillings (consisting of at least one free-flowing reaction mixture, of which at least one forms a foamed material) int... | 08/13/1991 |
| 5039733 | Process for the preparation of aqueous polyurethane-polyurea dispersion The present invention is directed to a process for the preparation of stable polyurethane-polyurea dispersion in a multi-stage process by forming an isocyanate-terminated prepolymer having an ionic group content of up to about 50 milliequivalents per 100 ... | 08/13/1991 |
| 5034457 | Thermoplastic blends containing polycarbonates based on substituted cyclohexylidenebisphenols Thermoplastic blends of A) 1 to 99% by weight of at least one thermoplastic aromatic polycarbonate which contains difunctional carbonate structural units of the formula (I) ##STR1## in which R1, R2, R3 and R4 i... | 07/23/1991 |
| 5029942 | Back rest support structure for a vehicle seat In order to be able to rationalize the mass production of back rest support structures from plastic for vehicle seats by injection molding, an injection molded part is provided which comprise a back shell and a frame which surrounds it like a cassette, th... | 07/09/1991 |
| 5028636 | Liquid polyisocyanate mixtures, a process for their preparation, and their use in the preparation of polyurethane foams This invention relates to novel urethane-modified polyisocyanate mixtures of the diphenylmethane series prepared by a process comprising reacting polyisocyanates or polyisocyanate mixtures of the diphenylmethane series with certain monohydric and/or polyh... | 07/02/1991 |
| 5023299 | Polyolefinecarboxylic acids, their preparation and their use for preparing polyolefine-polycarbonate block copolymers The present invention relates to poly-(C2 -C10 --olefine)-carboxylic acids of Mw (weight average) 2000 to 350,000, to their preparation by oxidative degradation of polyolefines or by reaction of "Living" polyolefines with CO | 06/11/1991 |
| 5023280 | Process for the production of polyurethane foams The present invention relates to a process for the production of polyurethane foams by the reaction of 1) polyisocyanates with 2) polyesters, polycarbonates, polylactones, or polyamides having a molecular weight range of about 400 to about 10,000 and cont... | 06/11/1991 |
| 5021542 | Polycarbonate of polysubstituted cyclohexylidene bisphenols Thermoplastic aromatic polycarbonates having average molecular weights Mw of at least 10,000 which contain bifunctional carbonate structural units corresponding formula (I) ##STR1## in which R1, R2, R3, R4 ... | 06/04/1991 |
| 5019305 | Process for the production of foam cushions from different fluid reaction mixtures A process for the production of foam cushions from different fluid reaction mixtures comprising introducing a first and at least one other reaction mixture into a mold cavity and leaving the mixtures to react to form a cushion having zones of differing el... | 05/28/1991 |
| 5019304 | Process for the production of foam cushions from different fluid reaction mixtures A process for the production of foam cushions from different fluid reaction mixtures comprising introducing a first reaction mixture and at least one other reaction mixture into a mold cavity and leaving the mixtures to react to form a cushion having zone... | 05/28/1991 |
| 5017623 | Process for the preparation of polyurethane foams This invention relates to a process for the preparation of polyurethane foams comprising reacting polyisocyanates with compounds containing at least two active hydrogen atoms and having a molecular weight of 400 to 10,000 selected from polymer-modified po... | 05/21/1991 |
| 5015321 | Adhesive and its use for producing adhesive bonds A moisture cured adhesive comprising a reaction product of an organic polyisocyanate and an organic polyhydroxyl component which comprises at least one polyether polyol which has been modified by radical polymerization or copolymerization with an olefinic... | 05/14/1991 |
| 5013838 | Polyisocyanates containing isocyanurate groups and a process for their production The present invention relates to a process for the production of an isocyanurate group-containing polyisocyanate by (a) partially reacting the isocyanate groups of an organic diisocyanate containing aliphatically and/or cycloaliphatically bound isocyanate grou... | 05/07/1991 |
| 5009950 | Composite structures The present invention is directed to composite structures by thermoplastically shaping an assembly of at least two flat thermoplastically formable plastic materials placed in layers one above the other and optionally at least one upper, lower and/or inter... | 04/23/1991 |
| 5010163 | Polycarbonate of cycloalkylidene bisphenol Thermoplastic aromatic polycarbonates having average molecular weight Mw of at least 10,000 which contain bifunctional carbonate structural units corresponding to formula (I) ##STR1## in which R1, R2, R3 and R4 | 04/23/1991 |
| 5008148 | Process for the production of plastic moulded articles with improved weathering resistance This invention relates to a process for coating moulded plastic articles of thermoplastic polycarbonates or thermoplastic polyarylene sulphides with metal oxides, to the moulded plastic articles obtainable by the process according to the invention and to ... | 04/16/1991 |
| 4999420 | Polymerization of cyclic aromatic oligomers with low temperature aprotic organic solvent This invention relates to a process for the production of aromatic polycarbonates from cyclic aromatic carbonate oligomers in the presence of aprotic organic solvents at low temperatures.... | 03/12/1991 |
| 4996373 | Process for producing dihydroxydiarylalkanes The invention relates to a process for producing dihydroxydiarylalkanes from carbonyl compounds and phenols under high pressure.... | 02/26/1991 |
| 4992548 | New catalysts, their use for the production of isocyanurate polyisocyanates The present invention is directed to catalysts obtained by mixing alkali fluorides with quaternary ammonium or phosphonium salts. The present invention is also directed to a process for the production of these catalysts by stirring alkali fluorides and quatern... | 02/12/1991 |
| 4983712 | Polyesters containing acryloyl groups and a process for their production The present invention relates to polyesters which contain one or more acryloyl groups, have a viscosity at 23°C. of 2,000 to 20,000 mPa.s and an acid value of 0 to 25, and are based on the esterification product of (I) a dicarboxylic acid component conta... | 01/08/1991 |
| 4981878 | Process for the production of heat curable flexible polyurethane molded foams The present invention is directed to a process for the production of heat curable, flexible, polyurethane molded foams by the reacting inside a closed mold (a) polyisocyanates with (b) compounds having a molecular weight of 400 to about 10,000 and contain... | 01/01/1991 |
