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    Aliphatic rim elastomers
    1.
    发明授权
    Aliphatic rim elastomers 失效
    脂肪族边缘弹性体

    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

    IPC分类号： C08G18/16 ,  C08G18/65 ,  C08G18/73 ,  C08G18/75 ,  C08G18/78 ,  C08G18/79 ,  C08G18/18

    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。

    Linear HDI urethane prepolymers for rim application
    3.
    发明授权
    Linear HDI urethane prepolymers for rim application 失效
    用于边缘应用的线性HDI氨基甲酸酯预聚物

    公开(公告)号：US5502150A

    公开(公告)日：1996-03-26

    申请号：US267732

    申请日：1994-06-29

    申请人： David D. Steppan ,  Ronald A. Cageao ,  Neil H. Nodelman ,  William E. Slack ,  Frank Sanns, Jr.

    发明人： David D. Steppan ,  Ronald A. Cageao ,  Neil H. Nodelman ,  William E. Slack ,  Frank Sanns, Jr.

    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。

    Rim process using liquid methylene diphenyl diisocyanate
    6.
    发明授权
    Rim process using liquid methylene diphenyl diisocyanate 失效
    使用液体亚甲基二苯基二异氰酸酯的轮缘工艺

    公开(公告)号：US5686042A

    公开(公告)日：1997-11-11

    申请号：US484618

    申请日：1995-06-07

    申请人： William E. Slack ,  Hersel T. Kemp, II ,  David D. Steppan

    发明人： William E. Slack ,  Hersel T. Kemp, II ,  David D. Steppan

    IPC分类号： C08G18/78 ,  C08G18/08 ,  C08G18/10

    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％。

    Allophanate-modified diphenylmethane diisocyanates and processes for their production and use
    7.
    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

    申请人： William E. Slack ,  Edmund J. Madaj ,  David D. Steppan

    发明人： William E. Slack ,  Edmund J. Madaj ,  David D. Steppan

    IPC分类号： C08G18/78 ,  C08G18/71

    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。

    Urethane-free, diphenylmethane diisocyanate prepolymers and process for their production
    8.
    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

    IPC分类号： C08G18/71 ,  C08G18/78

    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。

    High performance RIM elastomers and a process for their production
    9.
    发明授权
    High performance RIM elastomers and a process for their production 失效
    高性能RIM弹性体及其生产工艺

    公开(公告)号：US06765080B2

    公开(公告)日：2004-07-20

    申请号：US10165297

    申请日：2002-06-06

    申请人： Michael S. Super ,  David D. Steppan ,  William E. Slack ,  Bruce H. Potts ,  Michael F. Hurley

    发明人： Michael S. Super ,  David D. Steppan ,  William E. Slack ,  Bruce H. Potts ,  Michael F. Hurley

    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。

    Polyisocyanate based upon 4,4'- and 2,4'-diphenylmethane diisocyanates and use thereof in a rim process
    10.
    发明授权
    Polyisocyanate based upon 4,4'- and 2,4'-diphenylmethane diisocyanates and use thereof in a rim process 失效
    基于4,4'-和2,4'-二苯基甲烷二异氰酸酯的多异氰酸酯及其在边缘工艺中的用途

    公开(公告)号：US5350778A

    公开(公告)日：1994-09-27

    申请号：US144269

    申请日：1993-10-28

    申请人： David D. Steppan ,  William E. Slack ,  Charles G. Beckley

    发明人： David D. Steppan ,  William E. Slack ,  Charles G. Beckley

    IPC分类号： C08G18/65 ,  C08G18/76 ,  C08G18/10

    CPC分类号： C08G18/6511 ,  C08G18/6529 ,  C08G18/7671 ,  C08G2120/00

    摘要： Novel liquid, room temperature polyisocyanate having isocyanate group contents of from 6 to 31% by weight, are prepared by reacting:a) a methylene-bis(phenyl isocyanate) containing1) from 65 to 90% by weight of the 4,4'-isomer,2) from 10 to 35% by weigh of the 2,4'-isomer, and3) no more than 2% by weight of the 2,2'-isomer, with the percents of components a)1), a)2), and a)3) totalling 100%, andb) a mixture of:1) one or more organic compounds having molecular weights of from 400 to 6000 and containing from 2 to 8 isocyanate reactive groups, and2) one or more organic diols having molecular weights of from 60 to 200, excluding tripropylene glycol, the weight ratio of component b)1) to b)2) being from 150:1 to 5:1.When used in a RIM process, molded products are obtained which have improved tear strength, improved flexural modulus, improved impact resistance, and improved tensile strength.

    摘要翻译： 异氰酸酯基含量为6〜31重量％的室温多异氰酸酯的液体，通过以下方法制备：a）含有1）的亚甲基双（苯基异氰酸酯）65至90重量％的4,4' 异构体，2）10至35重量％的2,4'-异构体，和3）不超过2重量％的2,2'-异构体，组分a）1）的百分比， a）2）和a）3）总计100％，和b）混合物：1）一种或多种分子量为400至6000的含有2至8个异氰酸酯反应性基团的有机化合物，和2）一种 或更多分子量为60至200的有机二醇，不包括三丙二醇，组分b）1）至b）2）的重量比为150:1至5:1。 当用于RIM工艺时，获得了具有改善的撕裂强度，改进的弯曲模量，改进的耐冲击性和改进的拉伸强度的模制产品。