| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | Internal mold release compositions | US705869 | 1996-08-28 | US5670553A | 1997-09-23 | Paul William Mackey |
| An internal mold release system is provided which comprises (a) a carboxylic acid and (b) a compound selected from the group consisting of a fatty polyester, a fatty acid ester and a fatty amide. | ||||||
| 62 | Polyurethane SRIM compositions having internal mold release properties | US448713 | 1995-05-24 | US5594037A | 1997-01-14 | Richard P. Harrison; Bari W. Brown; Richard C. Rossio; Gladys M. Aviles; Edward M. Dexheimer; David Ho |
| The invention provides polyurethane components and compositions capable of providing internal mold release properties in SRIM applications. The polyol composition of the invention has an isocyanate reactive polyol (A) having a number average molecular weight from 100 to about 10,000 and an effective amount of internal mold release composition (B) having a silicon-containing polymer (a) and an epoxidized ester (b). The invention further provides an SRIM polyurethane composition useful in the preparation of molded polyurethane articles having internal mold release properties, the composition comprising an isocyanate component (I) and the isocyanate reactive polyol composition (component (II)) disclosed above. In another aspect of the invention, the invention provides methods of using the claimed compositions as well as the rigid cellular polyurethane SRIM articles resulting from such processes. | ||||||
| 63 | Internal mold release compositions | US520279 | 1995-08-25 | US5576409A | 1996-11-19 | Paul W. Mackey |
| An internal mold release system is provided which comprises (a) a carboxylic acid and (b) a compound selected from the group consisting of a fatty polyester, a fatty acid ester and a fatty amide. | ||||||
| 64 | Fatty imidazoline crosslinkers for polyurethane, polyurethaneurea and polyurea applications | US408456 | 1995-03-22 | US5541338A | 1996-07-30 | John E. Dewhurst; James S. Emerick; Brian E. Farrell |
| In an active hydrogen-containing B-side composition for reaction with a polyisocyanate-containing A-side composition to make a polyurethane, polyurethane/urea or polyurea elastomer by reaction injected molding, the improvement which comprises a crosslinking polyol composition which is the reaction product of a C.sub.12 -C.sub.36 fatty acid with a polyalkylene polyamine to yield an intermediate imidazoline-containing polyamine reaction product having at least one C.sub.11 -C.sub.35 alkyl substituent and further reacting the intermediate reaction product with a C.sub.2 -C.sub.21 reactive epoxide. | ||||||
| 65 | Polyisocyanate composition | US119266 | 1993-09-09 | US5340852A | 1994-08-23 | Wolfgang Pille-Wolf; Jan W. Leenslag; Berend Eling; Dirk G. C. Ingelaere |
| Compositions are provided which comprise an organic polyisocyanate and at least one compound corresponding to the following general formula (I) or (II) ##STR1## wherein Y represents Zn, Ni, Co, Cd, Pb, Sn or Cu;X.sub.1, X.sub.2, X.sub.3, X.sub.4, X.sub.5, X.sub.6, X.sub.7, and X.sub.8 each independently represents O or S;R.sub.1 and R.sub.2 each independently represents a saturated aliphatic hydrocarbon radical having 1 to 20 carbon atoms or an aromatic ring with the proviso that R.sub.1 and R.sub.2 are only existing if Y is Sn(IV);R.sub.3, R.sub.4, R.sub.6 and R.sub.7 each independently represents hydrogen or a saturated aliphatic hydrocarbon radical having 1 to 20 carbon atoms;R.sub.5 and R.sub.8 each independently represents a saturated aliphatic hydrocarbon radical;with the exception of a polyisocyanate composition comprising dibutyl tin maleate and ammonium salts of the type obtainable by reacting primary, secondary and/or tertiary amines with alkyl esters of acids of phosphorus exerting alkylating properties against the amines. | ||||||
| 66 | Internal release agents, active hydrogen containing mixtures which contain such agents and the use thereof in a process for the production of molded products | US697153 | 1991-05-08 | US5158607A | 1992-10-27 | Robson Mafoti; Clifford J. Lau |
| The present invention is directed to a novel internal release agent, a mixture of isocyanate reactive materials containing the release agent and a RIM process using the release agent. The novel release agent is an ester prepared by reacting a specific tetrol with a mixture of a saturated and an unsaturated acid. | ||||||
| 67 | Method for the preparation of molded polyurethane and polyurea articles | US425810 | 1989-10-23 | US5079270A | 1992-01-07 | Georg Burkhart; Hans-Joachim Kollmeier; Helmut Lammerting |
| A method and composition are disclosed for the preparation of polyurethane and polyurea molded articles, particularly according to the RIM method, in which liquid polybutadiene with an average molecular weight of 1,500 to 6,000 is used as an internal release agent in an amount of 0.5 to 5% by weight, based on the reaction formulation. The release agent is highly effective and demolded products which contain this release agent can be painted over without formation of surface defects. | ||||||
| 68 | Internal mold release agent for use in reaction injection molding | US546153 | 1990-06-28 | US5076989A | 1991-12-31 | John E. Dewhurst |
| The present invention is directed to a mold release, a composition containing the mold release, and a process of using the mold release. The mold release comprises an internal mold release composition comprising(a) a zinc carboxylate containing from 8 to 24 carbon atoms per carboxylate group, and(b) a compatibilizer comprising 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 be substituted by ether groups, ester groups, amide groups or amidine groups and may also 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, with the proviso that when R.sub.4 represents the group --NR.sub.2 R.sub.3, R.sub.1 can be hydrogen, and wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 may, with one or both of the amidine nitrogens, form a heterocyclic ring, in an amount sufficient to solubilize the zinc carboxylate. | ||||||
| 69 | Polyurethane/urea foams employing imino/enamine functional compounds | US400646 | 1989-08-30 | US4990548A | 1991-02-05 | Herbert R. Gillis; Malcolm Hannaby; Jan W. Leenslag; Alain Parfondry |
| Polyurethane/polyurea foams are made by reacting an organic polyisocyanate with resins containing imino/enamino-functional groups in the presence of blowing agents. Control of foam properties is offered by selecting imino/enamino-functional groups which decompose with water at the temperature of the reaction to produce volatile gases. | ||||||
| 70 | Internal mold release agents for polyisocyanurate systems | US347110 | 1989-05-03 | US4946922A | 1990-08-07 | John W. Reisch; Michael M. Emmett |
| Disclosed are active hydrogen compositions comprising: (A) an organic polyol having a molecular weight of from about 100 to about 4,000 wherein at least about 40 percent of the available hydroxyl groups are primary; and (B) from about 0.5 to about 10 pph of (A) of a polyamide formed from the reaction of a C.sub.2 to C.sub.30 aliphatic monocarboxylic acid and a relatively high molecular weight amine terminated polyether.Also disclosed are the molded polyisocyanurate polymers prepared from the above compositions and organic polyisocyanates. | ||||||
| 71 | Reaction injection molding compositions | US160647 | 1988-02-26 | US4794129A | 1988-12-27 | Herbert R. Gillis, Jr.; Malcolm P. Hannaby |
| Polymers having substituted urea groups, and molded objects therefrom, can be made by reacting, in a reaction injection molding (RIM) process, a composition comprising (A) a polyisocyanate and (B) a mixture comprising an imino functional resin and a chain extender. The chain extender may also be imino functional. | ||||||
| 72 | Internal release agents for polyisocyanate addition polymerization, their use in the preparation of cellular, microcellular, and noncellular polyurethane-polyurea molded parts having improved demolding properties | US701128 | 1985-02-13 | US4581387A | 1986-04-08 | Frank Werner; Matthias Marx; Hans U. Schmidt |
| The invention relates to a process for the preparation of cellular, microcellular, and noncellular polyurethane polyurea molded parts with improved demolding characteristics through the reaction injection molding technique wherein unique internal mold release agents are used which are esters and/or amides prepared by reacting a mixture of montanic acid and a carboxylic acid having ten or more carbon atoms with a polyol, alkanolamine, or polyamine. | ||||||
| 73 | Polyamines and polyols containing a polysiloxane internal mold release agent for use in preparing polyurethane and polyurea resins | US577296 | 1984-02-06 | US4504313A | 1985-03-12 | John R. Robertson |
| Blends of polyols and polyamines containing internal mold release agents consisting of certain polysiloxanes having pendant organic groups which have functional hydroxyl, amino or mercapto groups are useful in preparing mold releasable resin moldings when made by the reaction injection molding technique. | ||||||
| 74 | Liquid organic polyisocyanate-dicarboxylic ester binder composition and lignocellulosic composite materials prepared therefrom | US538712 | 1983-10-03 | US4490518A | 1984-12-25 | Stephen Fuzesi; Robert W. Brown |
| Disclosed is a liquid binder composition containing from about 40 to about 98 percent by weight of an organic polyisocyanate and correspondingly from about 2 to about 60 percent by weight of a select ester derived from a dicarboxylic acid. When the binder composition is used in making lignocellulosic composite materials, such as particle board, the ester acts as an effective internal mold release agent, facilitating release of the composite material from the mold. | ||||||
| 75 | Reaction injection molded elastomers containing acid amides | US579236 | 1984-02-13 | US4487912A | 1984-12-11 | Robert L. Zimmerman; Richard J. G. Dominguez |
| The invention relates to reaction injection molded elastomers derived from high molecular weight active hydrogen containing materials, a chain extender, a polyisocyanate and an acid amide as an internal mold release agent imparting superior hot tear strength. The reaction injection molded (RIM) elastomers of this invention are useful, for example, as automobile body parts. | ||||||
| 76 | Polyisocyanate addition products useful as mold release agents and a process for their production | US539508 | 1983-10-06 | US4478893A | 1984-10-23 | Manfred Schonfelder; Peter Haas; Geza Avar; Helmut Steinberger |
| Polyisocyanate addition products are made by reacting a polysiloxane having isocyanate reactive end groups, excess polyisocyanate and a compound selected from the group consisting of aliphatic alcohols, primary aliphatic amines, secondary aliphatic amines and mixtures thereof having a molecular weight of from 75 to 5000 and at least one tertiary amino group and/or oxyalkylene unit. In a preferred embodiment, the polysiloxane is reacted with excess polyisocyanate and the reaction product is subsequently reacted with the alcohol and/or amine. The addition products of this invention are particularly useful as mold release agents in the production of molded lacquer coated plastics by the "in-mold coating process." | ||||||
| 77 | Self-releasing binder based on isocyanate and the use thereof in a process for the production of molded articles | US150495 | 1980-05-16 | US4478738A | 1984-10-23 | Hans-Joachim Scholl; Hanns I. Sachs; Gert Jabs; Gunther Loew |
| The present invention relates to a substantially anhydrous binder having a self-releasing effect for the production of pressed articles comprising:(A) a polyisocyanate; and(B) a sulfonic acid corresponding to the general formula:R--SO.sub.3 H).sub.n whereinn represents an integer of 1 or 2;R represents an aromatic hydrocarbon radical having from 6 to 14 carbon atoms, an aliphatic hydrocarbon radical having from 10 to 18 carbon atoms, a cycloaliphatic hydrocarbon radical having from 6 to 15 carbon atoms, an araliphatic hydrocarbon radical having from 7 to 15 carbon atoms or an alkaromatic hydrocarbon radical having from 7 to 24 carbon atoms; andthe equivalent ratio of the components (A) and (B) is 100:0.5 to 100:20.The invention is also directed to the use of such binders in the production of shaped articles by the hot pressing of a wide variety of organic and/or inorganic materials. | ||||||
| 78 | Novel compositions and process | US332764 | 1981-12-21 | US4382108A | 1983-05-03 | Woodrow Carroll; Thomas R. McClellan |
| Composite panels are disclosed which comprise outer layers derived from cellulosic and like material conventionally employed in particle boards and an inner layer which is comminuted scrap plastic material, the various layers and the particles in them being bonded together using an organic polyisocyanate binder. Optionally the binder contains an internal release agent. The composites, in addition to representing a valuable way in which to utilize scrap plastic, also possess improved properties compared with the corresponding panels which lack the inner core. In a particular embodiment the scrap plastic used is derived from junked automobiles. | ||||||
| 79 | Particle board process using polymeric isocyanate/release agent | US273513 | 1981-06-15 | US4376089A | 1983-03-08 | Ben R. Bogner; Francis C. Grant-Acquah |
| A binder system is disclosed which incorporates an internal release agent and comprises a mixture of polyisocyanate resin, furfural and an ester of phosphoric acid. In the process of the invention the ester of phosphoric acid is placed into solution with furfural and subsequently blended with the polyisocyanate. Increased stability of the binder system is observed as well as providing for increased mold releasing capabilities. | ||||||
| 80 | Process for preparing a particle board using a self-releasing binder comprising a polyisocyanate and a sulfur-containing release agent | US245167 | 1981-03-18 | US4376088A | 1983-03-08 | Richard A. Prather |
| The use of polyisocyanates as binders in the preparation of particle boards is subject to the drawback that the boards exhibit a tendency to adhere to the face of the platens used in their formation. This problem is minimized by incorporating minor amounts of a mixture of certain organic sulfonic acids, hydrogen sulfates, salts and derivatives thereof, into the polyisocyanate to be used as binder. The polyisocyanates and the sulfonic acids, hydrogen sulfates, salts and derivatives are applied to the particles separately, or after preblending one with the other. Whether the components are applied separately or in combination one with the other, they can each be applied either neat of in the form of an emulsion or emulsions. | ||||||
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