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1.发明授权Reaction injection molding based on diethyl methylene diphenyl diisocyanate 失效基于二乙基亚甲基二苯基二异氰酸酯的反应注射成型
公开(公告)号：US5198522A
公开(公告)日：1993-03-30
申请号：US810635
申请日：1991-12-19
CPC分类号： C08G18/7671 , C08G18/10 , C08G18/5024 , C08G2120/00
摘要： Disclosed herein is an improved polyurea system comprising a reaction product of a polyisocyanate and a polyamine and an amine chain extender, the improvement comprising the polyisocyanate containing diethyl methylene diisocyanate, a prepolymer thereof or a mixture thereof, in an amount sufficient to slow down the reaction for use in a reaction injection molding.
摘要翻译： 本文公开了一种改进的聚脲体系，其包含多异氰酸酯与多胺和胺扩链剂的反应产物，其改进包括含量足以减缓反应的量的含二乙基亚甲基二异氰酸酯，其预聚物或其混合物的多异氰酸酯 用于反应注射成型。
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公开(公告)号：US5324773A
公开(公告)日：1994-06-28
申请号：US159895
申请日：1993-12-01
CPC分类号： C08G18/6685 , B29C67/246 , C08G18/1808 , C08K5/17 , C08G2120/00 , C08G2125/00
摘要： Products made using the RIM process where the reaction mixture contains an acidic release agent have improved green strength when the reaction mixture also contains a peralkylated polyalkylene polyamine.
摘要翻译： 当反应混合物含有酸性脱模剂时，使用RIM方法制得的产品在反应混合物中还含有全烷基化聚亚烷基多胺时具有改善的生坯强度。
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公开(公告)号：US5473044A
公开(公告)日：1995-12-05
申请号：US426359
申请日：1995-04-21
申请人： Robson Mafoti , David D. Steppan
发明人： Robson Mafoti , David D. Steppan
CPC分类号： C08G18/161 , C08G18/727 , C08G18/79 , C08G2120/00
摘要： This invention relates to a process for the production of a polyurethane molded part from a reaction injection molding process. The reaction mixture comprises:A) an isocyanate distillation residue resulting from the production of 1,6-hexamethylenediisocyanate by phosgenation of the corresponding amine, followed by the distillation of the pure 1,6-hexamethylenediisocyanate to yield said residue, wherein said residue has an NCO content of from 20 to 27%, a viscosity of from 1500 to 5000 cps at 25.degree. C., and from 0.1 to 3% by weight of hydrolyzable chlorides; withB) an isocyanate-reactive component comprising at least one organic compound having a molecular weight of from 500 to 10,000 and containing at least two isocyanate-reactive hydroxyl groups, and at least one organic diol having a molecular weight of from about 62 to 500,in the presence ofC) a specific catalyst mixture.The catalyst comprises at least one tertiary amine catalyst in combination with another catalyst selected from the group consisting of metal carboxylates, metal halides, ammonium carboxylates, and mixtures thereof.
摘要翻译： 本发明涉及从反应注射成型工艺生产聚氨酯模制件的方法。 反应混合物包括：A）通过相应的胺的光气化产生1,6-己二异氰酸酯得到的异氰酸酯蒸馏残余物，然后蒸馏出纯的1,6-己二异氰酸酯以产生所述残余物，其中所述残余物具有 NCO含量为20〜27％，25℃粘度为1500〜5000cps，可水解氯化物为0.1〜3重量％。 B）异氰酸酯反应性组分，其包含至少一种分子量为500至10,000的有机化合物，并含有至少两个异氰酸酯反应性羟基，以及至少一种分子量为约62至500的有机二醇 在C）具体的催化剂混合物的存在下。 催化剂包含至少一种叔胺催化剂与选自金属羧酸盐，金属卤化物，羧酸铵及其混合物的另一种催化剂组合。
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4.发明授权公开(公告)号：US06586487B1
公开(公告)日：2003-07-01
申请号：US09614612
申请日：2000-07-12
IPC分类号： C08G1828
CPC分类号： C08G18/6688 , C08G2101/0008 , C08G2101/0058 , C08G2101/0083 , C08G2350/00
摘要： A method for making an energy-absorbing foam having a density that is less than about 7 pcf that exhibits excellent strength properties and that is particularly suitable for automobile bumper applications. The invention is also directed to the energy-absorbing foam made with the method.
摘要翻译： 一种制造能量吸收泡沫的方法，所述泡沫的密度小于约7PCF，其表现出优异的强度性能，特别适用于汽车保险杠应用。 本发明还涉及用该方法制成的吸能泡沫。
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公开(公告)号：US5686042A
公开(公告)日：1997-11-11
申请号：US484618
申请日：1995-06-07
CPC分类号： C08G18/7837 , C08G2120/00 , C08G2125/00
摘要： The present invention relates to a process for the production of molded articles via the reaction injection molding technique. According to the RIM process, a reaction mixture is introduced into a closed mold, allowed to react fully, and removed from the mold. More specifically, these reaction mixtures comprise an isocyanate-reactive material, a chain extender, and a stable, liquid diallophanate modified diphenylmethane diisocyanate (MDI). Two specific processes for the preparation of the suitable diallophanate modified diisocyanate are disclosed. These diallophanate modified isocyanates either have an isocyanate group content from about 12 to 30%, or from about 5 to 29%.
摘要翻译： 本发明涉及通过反应注射成型技术生产模制品的方法。 根据RIM方法，将反应混合物引入封闭的模具中，使其完全反应，并从模具中取出。 更具体地说，这些反应混合物包括异氰酸酯反应性材料，扩链剂和稳定的液体透明质酸改性二苯基甲烷二异氰酸酯（MDI）。 公开了制备合适的二苯乙烯酸改性二异氰酸酯的两个具体方法。 这些环糊精改性的异氰酸酯的异氰酸酯基含量为约12-30％，或约5-29％。
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6.发明授权Allophanate-modified diphenylmethane diisocyanates and processes for their production and use 失效脲基甲酸酯改性二苯基甲烷二异氰酸酯及其生产和使用的方法
公开(公告)号：US5663272A
公开(公告)日：1997-09-02
申请号：US577580
申请日：1995-12-22
CPC分类号： C08G18/7837 , C08G2120/00
摘要： Allophanate-modified MDI which is a storage stable liquid at 25.degree. C. is produced by reacting a monoisocyanate and an organic material having at least two hydroxyl groups and a molecular weight of from about 60 to about 6,000 to form a urethane. The urethane is then reacted with and isomeric mixture of MDI in an amount such that the product isocyanate will have an NCO content of from about 12 to about 30%. The isomeric mixture of MDI is composed of 4,4'-diphenylmethane diisocyanate containing from 0 to about 60% by weight 2,4'-MDI and less than 6% by weight of the 2,2'-MDI. This allophanate-modified MDI is further reacted with an organic isocyanate-reactive material to produce an allophanate-modified MDI prepolymer containing urethane, urea and/or biuret groups having an NCO content which is generally from about 5 to about 29% by weight. The prepolymers of this invention are particularly useful in reaction injection molding processes because they give molded articles having improved flex modulus.
摘要翻译： 通过使单异氰酸酯和具有至少两个羟基并且分子量为约60至约6,000的有机材料反应形成氨基甲酸酯来制备作为25℃储存稳定液体的脲基甲酸酯改性MDI。 然后将氨基甲酸酯与MDI的异构体混合物反应，其量使得产物异氰酸酯的NCO含量为约12至约30％。 MDI的异构体混合物由含有0至约60重量％的2,4'-MDI和小于6重量％的2,2'-MDI的4,4'-二苯基甲烷二异氰酸酯组成。 该脲基甲酸酯改性的MDI进一步与有机异氰酸酯反应性材料反应以产生含有通常为约5至约29重量％的NCO含量的氨基甲酸酯，脲和/或缩二脲基团的脲基甲酸酯改性的MDI预聚物。 本发明的预聚物在反应注射成型工艺中特别有用，因为它们具有改进的挠曲模量的模塑制品。
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7.发明授权Urethane-free, diphenylmethane diisocyanate prepolymers and process for their production 失效无氨基二苯基甲烷二异氰酸酯预聚物及其制备方法
公开(公告)号：US5567793A
公开(公告)日：1996-10-22
申请号：US471551
申请日：1995-06-06
申请人： William E. Slack , David D. Steppan
发明人： William E. Slack , David D. Steppan
CPC分类号： C08G18/7837 , C08G18/71 , C08G2120/00
摘要： Allophanate-modified MDI which is a storage stable liquid at 25.degree. C. is produced in two steps. First, a monoisocyanate is reacted with an organic material having about 1.8 or more hydroxyl groups and a molecular weight of from about 60 to about 6,000 to form the urethane. The urethane is then reacted with an isomeric mixture of MDI in an amount such that the resultant isocyanate will have an NCO content of from about 3 to about 28%. The isomeric mixture of diphenylmethane diisocyanate contains from about 0 to about 60% by weight 2,4'-diphenylmethane diisocyanate, less than 6% by weight 2,2'-MDI and the remainder 4,4'-MDI. The prepolymers of this invention are particularly useful in reaction injection molding processes because molded articles having improved flex modulus are obtained.
摘要翻译： 在25℃下作为储存稳定液体的脲基甲酸酯改性MDI分两步制备。 首先，将单异氰酸酯与具有约1.8个或更多个羟基并且分子量为约60至约6,000的有机材料反应以形成氨基甲酸酯。 然后将氨基甲酸酯与MDI的异构体混合物反应，其量使得所得异氰酸酯的NCO含量为约3至约28％。 二苯基甲烷二异氰酸酯的异构体混合物含有约0至约60重量％的2,4'-二苯基甲烷二异氰酸酯，小于6重量％的2,2'-MDI和其余的4,4'-MDI。 本发明的预聚物在反应注射成型工艺中特别有用，因为获得具有改善的挠曲模量的模塑制品。
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公开(公告)号：US06765080B2
公开(公告)日：2004-07-20
申请号：US10165297
申请日：2002-06-06
IPC分类号： C08G1878
CPC分类号： C08G18/7837 , C08G18/10 , C08G18/222 , C08G18/324 , C08G18/4804 , C08G18/4866 , C08G18/5024 , C08G18/7671 , C08G2120/00 , C08G18/6685
摘要： This invention relates to high performance RIM (reaction injection molded) poly(urethane)urea elastomers, and to a process for their production. These elastomers comprise the reaction product of an allophanate-modified diphenylmethane diisocyanate prepolymer having an NCO group content of about 5 to about 30%, with an isocyanate-reactive component comprising a high molecular weight amine-terminated polyether polyol, an aromatic diamine chain extender, and, optionally, a chain extender or crosslinker selected from the group consisting of aliphatic amine terminated polyether polyols and aliphatic hydroxyl terminated polyether polyols, optionally, in the presence of an internal mold release agent, a surfactant and a filler.
摘要翻译： 本发明涉及高性能RIM（反应注射成型）聚（氨基甲酸酯）脲弹性体，以及其制备方法。 这些弹性体包含NCO基团含量为约5至约30％的脲基甲酸酯改性的二苯基甲烷二异氰酸酯预聚物与包含高分子量胺封端的聚醚多元醇的异氰酸酯反应性组分，芳族二胺扩链剂， 任选地，在内部脱模剂，表面活性剂和填料的存在下，任选地，选自脂族胺封端的聚醚多元醇和脂族羟基封端的聚醚多元醇的扩链剂或交联剂。
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公开(公告)号：US5502150A
公开(公告)日：1996-03-26
申请号：US267732
申请日：1994-06-29
IPC分类号： B29C45/00 , C08G18/10 , C08G18/16 , C08G18/32 , C08G18/65 , C08G18/66 , C08G18/73 , C08G18/80
CPC分类号： C08G18/8016 , C08G18/161 , C08G18/6511 , C08G18/6535 , C08G18/6688 , C08G18/73 , C08G2120/00
摘要： The present invention is directed to polyurethane moldings produced via the RIM process. These polyurethane moldings have excellent reactivity, demold properties (at a 30s demold), and good elongation and tear strength, and comprise the reaction product of an HDI prepolymer having an NCO content of 5 to 25%, a functionality of less than 2.3, and a monomer content of less than 10%, with an isocyanate-reactive component comprising b1) at least one relatively high molecular weight organic compound containing at least about two isocyanate-reactive hydroxyl groups; b2) at least one relatively low molecular weight organic compound selected from the group consisting of diols, aminoalcohols, and mixtures thereof; and b3) at least one relatively low molecular weight hydroxyl-based crosslinking compound containing no more than one aliphatic amine hydrogen atoms capable of reacting with isocyanate groups; in the presence of at least one catalyst.
摘要翻译： 本发明涉及通过RIM工艺生产的聚氨酯模制品。 这些聚氨酯模制品具有优异的反应性，脱模性（30秒脱模）和良好的伸长率和撕裂强度，并且包含NCO含量为5至25％，官能度小于2.3的HDI预聚物的反应产物，以及 单体含量小于10％，异氰酸酯反应性组分包含b1）至少一种含有至少约两个异氰酸酯反应性羟基的相对高分子量的有机化合物; b2）至少一种选自二醇，氨基醇及其混合物的相对低分子量的有机化合物; 和b3）至少一种相对低分子量的羟基交联化合物，其含有不超过一个能够与异氰酸酯基反应的脂族胺氢原子; 在至少一种催化剂的存在下。
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公开(公告)号：US5502147A
公开(公告)日：1996-03-26
申请号：US171282
申请日：1993-12-21
申请人： Neil H. Nodelman , David D. Steppan , Albert Magnotta , Robert M. Loring , Richard E. Keegan , William E. Slack
发明人： Neil H. Nodelman , David D. Steppan , Albert Magnotta , Robert M. Loring , Richard E. Keegan , William E. Slack
CPC分类号： C08G18/6505 , C08G18/78 , C08G18/79 , C08G2120/00
摘要： The present invention is directed to polyurethane moldings produced via the RIM process. These polyurethane moldings have excellent reactivity, demold properties (at a 30 s demold), and good elongation and tear strength, and comprise the reaction product of an aliphatic polyisocyanate having a viscosity of less than about 20,000 mPa.multidot.s at 25.degree. C. and a NCO functionality of 2.3 to 4.0 with an isocyanatereactive component comprising b1) a relatively high molecular weight organic compound containing at least one of the groups selected from the group consisting of hydroxy groups and amine groups; and b2) a low molecular weight chain extender selected from the group consisting of diols, triols, primary amines, secondary amines, aminoalcohols, and mixtures thereof; in the presence of a catalyst. The OH:NH ratio of the chain extender is from 1:1 to 25:1.
摘要翻译： 本发明涉及通过RIM工艺生产的聚氨酯模制品。 这些聚氨酯模制品具有优异的反应性，脱模性（30秒脱模）和良好的伸长率和撕裂强度，并且包括在25℃下具有小于约20,000mPax的粘度的脂族多异氰酸酯与NCO的反应产物 具有异氰酸酯反应性组分的2.3至4.0的官能度包含：b1）含有至少一种选自羟基和胺基的基团的相对高分子量的有机化合物; 和b2）选自二醇，三醇，伯胺，仲胺，氨基醇及其混合物的低分子量增链剂; 在催化剂存在下。 扩链剂的OH:NH比为1:1至25:1。
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