| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | Internal release agents, active hydrogen containing mixtures which contain such agents and the use thereof in a process for the production of molded products | US660759 | 1991-02-25 | US5137966A | 1992-08-11 | Neil H. Nodelman |
| The present invention is directed to a novel internal mold release agent for use in a polyurethane(urea) RIM process. The release agent broadly consists of the transesterification product of a fatty acid and a lower alkyl acetoacetate. | ||||||
| 122 | Internal mold release agents and the use thereof in the production of molded products | US689203 | 1991-04-22 | US5125974A | 1992-06-30 | Robson Mafoti |
| The present invention is directed to a novel internal release agent for the production of polyurethane and/or polyurea elastomers, to an isocyanate reactive composition containing that release agent and to the use of the release agent in a RIM process. The release agent is the reaction product of i) a transester of a) a polyester derived from a polymerized fatty acid and either neopentyl glycol or 2,2,4-trimethyl-1,3-pentane diol and b) an acetoacetate and ii) an aliphatic monoisocyanate. | ||||||
| 123 | Internal mold release agents and use thereof in the production of molded products | US689205 | 1991-04-22 | US5125973A | 1992-06-30 | Robson Mafoti |
| The present invention is directed to a novel internal release agent for the production of polyurethane and/or polyurea elastomers, to an isocyanate reactive composition containing that release agent and to the use of the release agent in a RIM process. The release agent is the reaction product of i) a polyester derived from a polymerized fatty acid and either neopentyl glycol or 2,2,4-trimethyl-1,3-pentane diol and ii) an aliphatic monoisocyanate. | ||||||
| 124 | Blends of alkylene glycols and relatively high equivalent weight active hydrogen compounds containing multipurpose additives | US398805 | 1989-08-25 | US4981877A | 1991-01-01 | Robert Carswell |
| A compatabilized active hydrogen compound-alkylene glycol composition comprises components (A) a relatively high equivalent weight material having an average of at least about 1.8 active hydrogen containing groups per molecule and a weight from about 500 to about 5000 per active hydrogen containing group; (B) an alkylene glycol which is incompatible with component (A) at the relative proportions thereof present in the composition; said composition having dissolved therein; (C) a compatibilizing amount of at least one thiourea compound. Preferably the composition also contains at least one transition metal salt of a carboxylic acid wherein said metal is selected from Groups I-B, II-B, V-A, IV-B, V-B, VI-B, VII-B or VIII of the Periodic Table of the Elements. The composition preferably also contains a sufficient quantity of at least one amine group-containing material that the salt is soluble in said composition. Such compositions are useful in producing poloyurethanes, particularly polyurethanes exhibiting relatively short demold times and good mold release properties. | ||||||
| 125 | Internal mold release agent for use in polyurea rim systems | US362906 | 1989-06-08 | US4954537A | 1990-09-04 | Frank Sanns, Jr. |
| The present invention is directed to a process for the production of optionally cellular, polyurea elastomer moldings by reacting a reaction mixture containing(I) a polyisocyanate,(II) a polyether having at least two isocyanate-reactive groups and a molecular weight of 1800 to 12,000 in which at least 50% of the isocyanate-reactive groups are primary and/or secondary amino groups,(III) about 5 to 50% by weight, based on the weight of component (II) of a chain extender comprising a sterically hindered aromatic diamine and(IV) about 1 to 20% by weight, based on the weight of components (II) and (III) of an active hydrogen-containing fatty acid ester having a molecular weight of about 500 to 5000 and prepared by reacting an alcohol with an aliphatic, saturated or unsaturated fatty acid, said ester being characterized in that at least one aliphatic acid which contains more than eight carbon atoms is built into the molelcule, said ester further characterized as having an acid number of 0 to 100 and a hydroxyl number of 0 to 150 with at least one of said numbers being greater than 0,wherein the fatty acid ester is initially blended with component (II), component (III) or a mixture thereof and the reaction mixture is processed as a one-shot system by the RIM process at an isocyanate index of about 70 to 130.The present invention is also directed to an isocyanate-reactive component for use in a RIM process based on components (II), (III) and (IV). | ||||||
| 126 | Reaction injection moulding compositions comprising a prepolymer and at least one imino-functional compound | US163922 | 1988-03-04 | US4910279A | 1990-03-20 | Herbert R. Gillis; Eduard F. Cassidy; Alain Parfondry |
| A reaction system for use in making a reaction injection moulded elastomer, said system comprising the following components:(A) a polyisocyanate composition comprising a reaction product of a stoichiometric excess of an organic polyisocyanate and:(i) a polymeric polyol having an average nominal hydroxyl functionality greater than 2 and an average hydroxyl equivalent weight of from about 500 to about 5000, and(ii) a polymeric polyamine having an average nominal primary and/or secondary amino functionality of from about 2 to about 3 and an average amine equivalent weight of from about 500 to about 5000, the polyol and the polyamine having glass transition temperatures below room temperature.(B) an isocyanate-reactive composition comprising at least one imino-functional compound. | ||||||
| 127 | Internal mold release compositions | US40463 | 1987-04-20 | US4895879A | 1990-01-23 | Donald L. Nelson; Roney J. Matijega; Dennis P. Miller, deceased |
| Internal mold release compositions suitable for use in preparing polyurethane and polyurea moldings comprise a tertiary amine compound, a metal salt of a carboxylic acid, amidocarboxylic acid, phosphorus-containing acid or boron-containing acid. The metal is from Group IA, IB, IIA, or IIB metal or aluminum, chromium, molybdenum, iron, cobalt, nickel, tin, lead, antimony or bismuth. | ||||||
| 128 | Polyester group containing polysiloxanes for lacquers and molding compositions | US913302 | 1986-09-30 | US4812518A | 1989-03-14 | Karlheinz Haubennestel; Alfred Bubat |
| Lacquers and molding compositions containing an anti-adhesive character producing and lubricity increasing amount of a polyester-containing polysiloxane corresponding to the formula ##STR1## wherein A, B and D each represent --CH.sub.3 or --Z--R--Q; Z represents an alkylene group with 1 to 11 carbon atoms, --(CH.sub.2).sub.2 SCH.sub.2 --or --(CH.sub.2).sub.3 NHCO--; R represents an aliphatic, cycloaliphatic or aromatic group containing at least 3 carboxylate ester groups and having an average molecular weight Mn of 300 to 3,000; Q represents a reactive group capable of chemically reacting with a resin component of the lacquer or molding composition; x represents a number from 4 to 150; y represents a number from 1 to 6, in which an average molecule contains at least one group --Z--R--Q and the ratio of the number of --Z--R--Q groups to the number x is from 1:3 to 1:30. A process for imparting anti-adhesive character and increasing lubricity of lacquers and molding compositions by incorporating such polyester-containing polysiloxanes into the compositions as additives is also disclosed. | ||||||
| 129 | Rim polyurethane compositions containing internal mold release agents | US146075 | 1988-01-20 | US4789688A | 1988-12-06 | John E. Dewhurst; Stephen J. Harasin |
| The present invention is directed to a process for the production of optionally cellular, polyurethane elastomer moldings or optionally cellular, rigid structural polyurethanes by reacting a reaction mixture containing(i) a polyisocyanate,(ii) a high molecular weight polymer having at least two hydroxy groups and having a molecular weight of 400 to about 10,000,(iii) about 5 to 50% by weight, based on the weight of component (ii) of a chain-extender having at least two hydroxy groups and(iv) about 0.05 to 10 weight percent, based on the weight of components (ii) and (iii) of a salt based on a carboxy functional siloxane and an amidine group-containing compound of the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are straight or branched, saturated or unsaturated hydrocarbon chains having up to 30 carbon atoms which may optionally be substituted by ether groups, ester groups, amide groups or amidine groups and may also optionally be terminated by isocyanate-reactive groups such as hydroxyl or amino groups,R.sub.4 corresponds to the definition of R.sub.1, R.sub.2 and R.sub.3, but may additionally represent an aromatic substituent having 6 to 15 carbon atoms or may represent the group --NR.sub.2 R.sub.3 andR.sub.1, R.sub.2, R.sub.3 and R.sub.4 may, with one or both of the amidine nitrogens, also form a heterocyclic ring.The present invention is also directed to the amidine group-containing salt (iv) and to a polyol composition based on components (ii), (iii) and (iv). | ||||||
| 130 | Rim polyurethane or polyurea compositions containing internal mold release agents | US114262 | 1987-11-04 | US4764540A | 1988-08-16 | John E. Dewhurst; Stephen J. Harasin; Mark C. Cekoric; Saad M. Abouzahr |
| The present invention is directed to a process for the production of optionally cellular, polyurethane elastomer moldings or optionally cellular, rigid structural polyurethanes by reacting a reaction mixture containing(i) a polyisocyanate,(ii) a high molecular weight polymer having at least two isocyanate-reactive groups and having a molecular weight of 400 to about 10,000,(iii) about 5 to 50% by weight, based on the weight of component (ii) of a chain-extender having at least two isocyanate-reactive groups and(iv) about 0.05 to 10 weight percent, based on the weight of components (ii) and (iii) of a salt based on a carboxy functional siloxane and an amidine group-containing compound of the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are straight or branched, saturated or unsaturated hydrocarbon chains having up to 30 carbon atoms which may optionally be substituted by ether groups, ester groups, amide groups or amidine groups and may also optionally be terminated by isocyanate-reactive groups such as hydroxyl or amino groups,R.sub.4 corresponds to the definition of R.sub.1, R.sub.2 and R.sub.3, but may additionally represent an aromatic substituent having 6 to 15 carbon atoms or may represent the group --NR.sub.2 R.sub.3 andR.sub.1, R.sub.2, R.sub.3 and R.sub.4 may, with one or both of the amidine nitrogens, also form a heterocyclic ring.The present invention is also directed to the amidine group-containing salt (iv) and to a isocyanate-reactive composition based on components (ii), (iii) and (iv). | ||||||
| 131 | Process for the production of moldings | US777656 | 1985-09-19 | US4609682A | 1986-09-02 | Christian Weber; Klaus Konig; Manfred Schmidt |
| The present invention relates to a new process for the production of elastomeric polyurethane moldings which may be microcellular having a sealed surface layer and an average density of from 0.8 to 1.4 g/cm.sup.3, wherein specific condensation products of ricinoleic acid are used as internal mold release agents. | ||||||
| 132 | Long chain hydrocarbon and fluorocarbon reactive internal release agents for condensation polymers | US755971 | 1985-07-17 | US4594402A | 1986-06-10 | Charles R. Coleman; Thomas G. Rukavina |
| A method for obtaining improved release of a polymer from a contacting surface by incorporating a reactive internal release agent in the polymer reaction mixture is disclosed. | ||||||
| 133 | Internal mold release agent for use in reaction injection molding | US737369 | 1985-05-23 | US4581386A | 1986-04-08 | Ronald P. Taylor; Mark E. Cekoric; John E. Dewhurst; Saad M. Abouzahr |
| The present invention is directed to a process for the production of optionally cellular, polyurethane elastomer molding by reacting a reaction mixture containing(I) a polyisocyanate,(II) an isocyanate-reactive polymer having a molecular weight of about 1800 to 12,000,(III) about 5 to 50% by weight, based on the weight of component (II) of a chain extender comprising a sterically hindered aromatic diamine and(IV) an internal mold release agent mixture comprising(a) about 0.5 to 10% by weight, based on the weight of components (II) and (III) of a zinc carboxylate containing 8 to 24 carbon atoms per carboxylate group and(b) a compatibilizer comprising a member selected from the group consisting of nitrogen-containing, isocyanate-reactive, acyclic compounds and nitrogen-containing, isocyanate-reactive polymers in an amount sufficient to solubilize the zinc carboxylate so that when the internal mold release agent mixture is in admixture with components (II) and (III), the zinc carboxylate possesses improved resistance to precipitation,the reaction mixture being processed as a one-shot system by the RIM process at an isocyanate index of about 70 to 130. | ||||||
| 134 | Process for forming mold releasable polyurethane, polyurea and polyureaurethane resins using isocyanate reactive polysiloxanes as internal mold release agents | US497036 | 1983-05-23 | US4546154A | 1985-10-08 | John R. Robertson |
| Polyurethane, polyurea and polyureaurethane resins having improved mold release properties are made by including with the reactive ingredients certain internal mold release agents which are polysiloxane polymers having pendant organic groups which contain at least one hydroxyl, amino or mercapto group. | ||||||
| 135 | Preparation of molded lignocellulosic compositions using an emulsifiable polyisocyanate binder and an emulsifiable carboxy functional siloxane internal release agent | US504698 | 1983-06-15 | US4528154A | 1985-07-09 | Tinh Nguyen; James M. Gaul |
| A binder system is provided for the preparation of lignocellulosic composite molded articles, such as flake or particle board, which incorporates an internal release agent and comprises an emulsifiable organic di- or polyisocyanate and an emulsifiable carboxy functional siloxane. The emulsifiable carboxy functional siloxane is preblended with the di- or polyisocyanate providing for increased mold release properties. | ||||||
| 136 | Process of making particle board from pyrophosphate treated polyisocyanates | US404415 | 1982-08-02 | USRE31703E | 1984-10-09 | Richard A. Prather; David L. Williams; Robert M. Partin; Warren J. Rabourn, deceased |
| A process is disclosed for the preparation of liquid, storage-stable, polyisocyanate compositions containing a release agent formed in situ which compositions are useful, for example, as binder resins in the formation of particle boards which latter, because of the presence of the release agent, show no tendency to adhere to the face of metal platens used in their formation. The process comprises heating an organic polyisocyanate (polymethylene polyphenyl polyisocyanate preferred) with an acid phosphate (e.g. a mixture of mono- and di-alkyl acid phosphates) under conditions controlled as to time and temperature so as to yield a product which is storage stable and shows no tendency to deposit solid or to separate into two liquid phases. | ||||||
| 137 | Aqueous polyisocyanate emulsions useful as binders in the production of molded articles | US455376 | 1983-01-03 | US4472230A | 1984-09-18 | Hanns I. Sachs; Peter Kasperek; Robert Peters |
| Aqueous polyisocyanate emulsions are made by emulsifying 5 to 70 parts by weight (on a basis of 100 parts) of a polyisocyanate which has not been modified to render it hydrophilic and emulsifiable with 30 to 95 parts by weight (on a basis of 100 parts) aqueous paraffin dispersion containing 3 to 65 wt. % paraffin, and optionally known additives in the presence of water. The water is used in a quantity such that the emulsion has a solids content of from 6 to 90 wt. %. These emulsions are particularly useful as binders in the production of molded articles. | ||||||
| 138 | Process of preparing foams with internal mold-release agents | US924260 | 1978-07-13 | US4201847A | 1980-05-06 | Helmut Kleimann; Wulf von Bonin; Heinz-Georg Schneider |
| A reaction product of a fatty acid ester and an organic polyisocyanate is included in a foamable reaction mixture containing an organic polyisocyanate to provide a molded product which can be removed from a mold whose surface has not been coated with conventional mold release agents. | ||||||
| 139 | Method of obtaining release of polyurethane polymers and compositions therefor | US578561 | 1975-05-19 | US4052495A | 1977-10-04 | John G. Uhlmann; Joseph A. Colquhoun |
| A method of obtaining release of polyurethane polymers from various substrates is disclosed. Compositions which are specifically described siloxane-polyoxyalkylene copolymers give release properties to cured polyurethane polymers. | ||||||
| 140 | Process for molding polyurethane foams | US521426 | 1974-11-06 | US4033912A | 1977-07-05 | Helmut Kleimann; Wulf VON Bonin |
| The mold release properties of a molded polyurethane foam are improved by including the foamable mixture to be molded, a reaction product of a polysiloxane and an organic monoisocyanate or polyisocyanate. | ||||||
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