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1. 发明授权

US6090864A Polymeric MDI prepolymer composition and flexible foams prepared therefrom 失效
标题翻译：聚合MDI预聚物组合物和由其制备的柔性泡沫
公开(公告)号：US6090864A
公开(公告)日：2000-07-18
申请号：US845737
申请日：1997-04-25
申请人： Thirumurti Narayan , Gary E. Brant , Edward W. Cole, III
发明人： Thirumurti Narayan , Gary E. Brant , Edward W. Cole, III
IPC分类号： C08G18/48 , C08G18/65 , C08G18/76 , C08G18/04
CPC分类号： C08G18/7664 , C08G18/4837 , C08G18/6564 , C08G2101/0008 , C08G2101/0066 , C08G2101/0083
摘要： The present invention relates to prepolymers, comprising(a) a polymethylene polyphenylene polyisocyanate; and(b) a polyether polyol having an average hydroxyl equivalent weight of at least about 700;wherein the resulting prepolymer has an average viscosity of between about 400 to about 2000 centipoise at 25.degree. C. The prepolymer is useful, for example, for the production of polyurethane foams and, more particularly, to medium density flexible foams having superior flow characteristic and fast demold times.
摘要翻译：本发明涉及预聚物，其包含（a）多亚甲基聚亚苯基多异氰酸酯; 和（b）平均羟基当量重量为至少约700的聚醚多元醇; 其中所得预聚物在25℃下的平均粘度为约400至约2000厘泊。预聚物可用于例如生产聚氨酯泡沫，更具体地说，可用于具有优异流动特性的中密度柔性泡沫，快速脱模时间

2. 发明授权

US5658959A Water blown integral skin polyurethane composition 失效
标题翻译：水粉整体皮肤聚氨酯组合物
公开(公告)号：US5658959A
公开(公告)日：1997-08-19
申请号：US550136
申请日：1995-10-30
申请人： Valeri L. Voloppi , Thirumurti Narayan
发明人： Valeri L. Voloppi , Thirumurti Narayan
IPC分类号： C08G18/65 , C08G18/66 , C08G18/48
CPC分类号： C08G18/6564 , C08G18/6674 , C08G2101/0033 , C08G2101/0083 , C08G2410/00
摘要： The present invention relates to water-blown integral skin polyurethane foam compositions, molded polyurethane articles, a process of preparing said articles, and an isocyanate composition for use therein. In particular, the invention relates to water-blown integral skin molded polyurethane articles having particularly advantageous physical properties, and compositions useful for producing such articles. In particular, the invention provides a polyurethane composition which has an isocyanate component (a) an isocyanate reactive component (b), a blowing agent comprising water (c), a polyether (d) selected from the group consisting of polytetrahydrofuran and polyethylene glycol having a number average molecular weight of from 200 to 2000 and optionally, one or more additives (e) from the group consisting of catalysts, chain extenders, oxo alcohols, and mixtures thereof. The composition may be characterized in that the integral skin polyurethane articles made of the composition have a tensile strength of greater than or equal to 450 psi and/or a Taber abrasion (mg loss) of less than 200.
摘要翻译：本发明涉及水吹整体皮肤聚氨酯泡沫组合物，模塑聚氨酯制品，制备所述制品的方法和用于其中的异氰酸酯组合物。特别地，本发明涉及具有特别有利的物理性能的水吹式整体表皮模塑聚氨酯制品和用于生产这种制品的组合物。特别是，本发明提供了具有异氰酸酯成分（a）异氰酸酯反应性成分（b），发泡剂（c），选自聚四氢呋喃和聚乙二醇的聚醚（d）的聚氨酯组合物，数均分子量为200至2000，以及任选的一种或多种添加剂（e），由催化剂，扩链剂，羰基合成醇及其混合物组成。组合物的特征在于，由组合物制成的整体皮肤聚氨酯制品具有大于或等于450psi的拉伸强度和/或小于200的泰伯磨损（mg损失）。

3. 发明授权

US5539010A Water-blown polyurethane sealing devices and compositions for producing same 失效
公开(公告)号：US5539010A
公开(公告)日：1996-07-23
申请号：US550418
申请日：1995-10-30
申请人： Thirumurti Narayan , Steven Hicks
发明人： Thirumurti Narayan , Steven Hicks
IPC分类号： C08G18/48 , C08G18/72 , C08G18/76 , C08G18/79 , C08G18/10
CPC分类号： C08G18/797 , C08G18/4825 , C08G18/725 , C08G18/7664 , C08G2101/0066 , C08G2101/0083 , C08G2190/00
摘要： Disclosed as a particular isocyanate prepolymer composition particularly suitable for use in polyurethane compositions having particular applicability for producing microcellular molded polyurethane articles particularly suitable for use as sealing devices. In particular, the isocyanate prepolymer composition is the result of reacting an isocyanate blend (a) having(i) 0 to 10 pbw 2,4'-diphenylmethane diisocyanate;(ii) 40 to 90 pbw 4,4'-diphenylmethane diisocyanate;(iii) 1 to 10 pbw 3-ring oligomers of polymethylenepolyphenyl polyisocyanate;(iv) 1 to 20 pbw of n-ring oligomers ofpolymethylene polyphenyl polyisocyanate (n being greater than 3); and(v) 1 to 10 pbw of a mixture of uretonimine with from 5 to 50 parts by weight of a propoxylated propylene glycol (b) having a number average molecular weight of between 2000 and 6000, and a hydroxyl number of between 10 to 75. The resulting isocyanate prepolymer (I) has a free NCO of from 20 to 30 and a viscosity of from 50 to 500 cPs.

4. 发明授权

US5539009A Water-blown polyurethane sealing devices and compositions for producing same 失效
公开(公告)号：US5539009A
公开(公告)日：1996-07-23
申请号：US548525
申请日：1995-10-26
申请人： Thirumurti Narayan , Steven Hicks
发明人： Thirumurti Narayan , Steven Hicks
IPC分类号： C08G18/48 , C08G18/72 , C08G18/76 , C08G18/79 , C08G18/10
CPC分类号： C08G18/797 , C08G18/4825 , C08G18/725 , C08G18/7664 , C08G2101/0066 , C08G2101/0083 , C08G2190/00
摘要： Disclosed as a particular isocyanate prepolymer composition particularly suitable for use in polyurethane compositions having particular applicability for producing microcellular molded polyurethane articles particularly suitable for use as sealing devices. In particular, the isocyanate prepolymer composition is the result of reacting an isocyanate blend (a) having(i) 0 to 10 pbw 2,4'-diphenylmethane diisocyanate;(ii) 40 to 90 pbw 4,4'-diphenylmethane diisocyanate;(iii) 1 to 10 pbw 3-ring oligomers of polymethylene polyphenyl polyisocyanate;(iv) 1 to 20 pbw of n-ring oligomers of polymethylene polyphenyl polyisocyanate (n being greater than 3); and(v) 1 to 10 pbw of a mixture of uretonimine with from 5 to 50 parts by weight of a propoxylated propylene glycol (b) having a number average molecular weight of between 2000 and 6000, and a hydroxyl number of between 10 to 75. The resulting isocyanate prepolymer (I) has a free NCO of from 20 to 30 and a viscosity of from 50 to 500 cPs.

5. 发明授权

US5532403A Water-blown polyurethane sealing devices and compositions for producing same 失效
公开(公告)号：US5532403A
公开(公告)日：1996-07-02
申请号：US548077
申请日：1995-10-25
申请人： Thirumurti Narayan , Steven Hicks
发明人： Thirumurti Narayan , Steven Hicks
IPC分类号： C08G18/10 , C08G18/48 , C08G18/72 , C08G18/79 , C07C261/00
CPC分类号： C08G18/797 , C08G18/10 , C08G18/4837 , C08G18/725 , C08G2101/0066 , C08G2101/0083 , C08G2190/00 , C08G2410/00
摘要： Disclosed as a particular isocyanate prepolymer composition particularly suitable for use in polyurethane compositions having particular applicability for producing microcellular molded polyurethane articles particularly suitable for use as sealing devices. In particular, the isocyanate prepolymer composition is the result of reacting an isocyanate blend (a) having(i) 0 to 10 pbw 2,4'-diphenylmethane diisocyanate;(ii) 30 to 80 pbw 4,4'-diphenylmethane diisocyanate;(iii) 1 to 10 pbw of a mixture of uretoniminewith from 10 to 70 parts by weight of a polyol (b) having a number average molecular weight of between 1000 and 10,000, and a hydroxyl number of between 10 to 75. The resulting isocyanate prepolymer (I) has a free NCO of less than 20 and a viscosity of from 200 to 1000 cPs.

6. 发明授权

US4791148A Isocyanate terminated quasi-prepolymers useful for preparing polyurethane/polyisocyanurate foams having low thermal conductivity 失效
标题翻译：异氰酸酯封端的准预聚物，可用于制备具有低热导率的聚氨酯/聚异氰脲酸酯泡沫
公开(公告)号：US4791148A
公开(公告)日：1988-12-13
申请号：US13653
申请日：1987-02-12
申请人： Robert E. Riley , Thirumurti Narayan
发明人： Robert E. Riley , Thirumurti Narayan
IPC分类号： C08G18/10 , C08G18/42 , C08G18/30
CPC分类号： C08G18/4211 , C08G18/10 , C08G2101/0025 , Y10S521/902
摘要： Polyurethane/polyisocyanurate rigid foams having low thermal conductivity are prepared from isocyanate-terminated quasi-prepolymers prepared from polyester polyols derived from phthalic anhydride or from the transesterification of polyethylene terephthalate scrap.
摘要翻译：具有低导热性的聚氨酯/聚异氰脲酸酯硬质泡沫由来自邻苯二甲酸酐的聚酯多元醇或聚对苯二甲酸乙二醇酯废料的酯交换制备的异氰酸酯封端的准预聚物制备。

7. 发明授权

US4455397A Polyisocyanurate foams prepared from partially etherified methylolamines 失效
标题翻译：由部分醚化的羟甲基胺制备的聚异氰脲酸酯泡沫
公开(公告)号：US4455397A
公开(公告)日：1984-06-19
申请号：US531867
申请日：1983-09-14
申请人： Curtis J. Reichel , Thirumurti Narayan , John T. Patton, Jr.
发明人： Curtis J. Reichel , Thirumurti Narayan , John T. Patton, Jr.
IPC分类号： C08G18/09 , C08G18/38 , C08G18/65 , C08G18/14
CPC分类号： C08G18/092 , C08G18/3851 , C08G18/65
摘要： Polyisocyanurate foams are prepared from reacting partially etherified methylolmelamines either alone or in mixture with polyoxyalkylene polyether polyols with polyisocyanates. Improved friability and flame retardancy are obtained.
摘要翻译：聚异氰脲酸酯泡沫是由部分醚化的羟甲基三聚氰胺单独或与聚氧化烯聚醚多元醇与多异氰酸酯混合制备的。获得了改善的脆性和阻燃性。

8. 发明授权

US4424288A Carbodiimide-modified polymethylene polyphenylene polyisocyanates for use in the preparation of polyisocyanurate-polyurethane foams 失效
标题翻译：用于制备聚异氰脲酸酯 - 聚氨酯泡沫的碳二亚胺改性聚亚甲基多亚苯基多异氰酸酯
公开(公告)号：US4424288A
公开(公告)日：1984-01-03
申请号：US334158
申请日：1981-12-24
申请人： John T. Patton, Jr. , Peter T. Kan , Thirumurti Narayan
发明人： John T. Patton, Jr. , Peter T. Kan , Thirumurti Narayan
IPC分类号： C08G18/48 , C08G18/79 , C08G18/14 , C08G18/78
CPC分类号： C08G18/797 , C08G18/4829 , C08G2105/02 , Y10S521/901 , Y10S521/902
摘要： Liquid carbodiimide-modified organic polyisocyanates are prepared by reacting a crude polymethylene polyphenylene polyisocyanate containing no more than 70 weight percent diphenylmethane diisocyanate with an isomer mixture of 40 to 100 weight percent 4,4'-, 0 to 50 weight percent 2,4- and 0 to 10 weight percent 2,2'-diphenylmethane diisocyanate and having an average functionality of 2.1 to 2.7 and a free NCO content of at least 30 percent weight percent in the presence of an effective amount of carbodimidization catalyst. Polyisocyanurate-polyurethane foams prepared by reacting the modified polyisocyanates and polyols selected from the group consisting of diethylene glycol and ethylene oxide adducts of trimethylolpropane, trimethylolethane, glycerine, pentaerythritol, .alpha.-methylglucoside, sucrose, toluene diamine and methylene dianiline in the presence of trimerization catalysts exhibit improved compression strengths and K-factors with low friability and smoke density.
摘要翻译：液体碳二亚胺改性的有机多异氰酸酯通过使含有不超过70重量％的二苯基甲烷二异氰酸酯的粗多亚甲基多亚苯基多异氰酸酯与40至100重量％的4,4'-，0至50重量％的2,4-和 0至10重量％的2,2'-二苯基甲烷二异氰酸酯，并且在有效量的碳二亚胺化催化剂存在下，其平均官能度为2.1至2.7，游离NCO含量为至少30重量％。通过在三聚催化剂存在下，使改性多异氰酸酯和选自二甘醇和三羟甲基丙烷，三羟甲基乙烷，甘油，季戊四醇，α-甲基葡糖苷，蔗糖，甲苯二胺和亚甲基二苯胺的环氧乙烷加成物反应制备的聚异氰脲酸酯聚氨酯泡沫表现出改善的压缩强度和具有低脆性和烟密度的K因子。

9. 发明授权

US4382125A Isocyanurate-modified polymethylene polyphenylene polyisocyanate compositions 失效
标题翻译：异氰脲酸酯改性聚亚甲基多亚苯基多异氰酸酯组合物
公开(公告)号：US4382125A
公开(公告)日：1983-05-03
申请号：US325684
申请日：1981-11-30
申请人： Thirumurti Narayan , Peter T. Kan , John T. Patton, Jr.
发明人： Thirumurti Narayan , Peter T. Kan , John T. Patton, Jr.
IPC分类号： C08G18/32 , C08G18/48 , C08G18/76 , C08G18/79 , C08G18/14
CPC分类号： C08G18/794 , C08G18/3206 , C08G18/4833 , C08G18/7664 , Y10S521/902
摘要： A stable isocyanurate-modified polyisocyanate prepared by trimerizing an organic polyisocyanate mixture of 45 to 70 percent by weight of diphenylmethane diisocyanate having an isomer mixture of 40 to 100 weight percent, 4,4'-, 0 to 50 weight percent 2,4-, and 0 to 10 weight percent 2,2'-diphenylmethane diisocyanate and from 30 to 55 percent by weight polymethylene polyphenylene polyisocyanate with an isocyanurate content of 20 to 33 percent by weight. Polyurethane isocyanurate foams prepared from the reaction of these isocyanates with active hydrogen compounds selected from the group consisting of diethylene glycol and ethylene oxide adducts of trimethylolpropane, trimethylolethane, and glycerine exhibit good K- factors, low friability and low smoke density.
摘要翻译：一种稳定的异氰脲酸酯改性的多异氰酸酯，它是通过将有机多异氰酸酯混合物的45-70％（重量比）的二异氰酸酯二异氰酸酯与40至100％（重量）的异构体混合物，4,4'-，0-50％（重量）的2,4- 和0至10重量％的2,2'-二苯基甲烷二异氰酸酯和30至55重量％的聚亚甲基聚亚苯基多异氰酸酯，异氰脲酸酯含量为20至33重量％。由这些异氰酸酯与三羟甲基丙烷，三羟甲基乙烷和甘油的二甘醇和环氧乙烷加合物的活性氢化合物的反应制备的聚氨酯异氰脲酸酯泡沫显示出良好的K-因子，低脆性和低烟雾密度。

10. 发明授权

US4197374A Cellular products based on halocarboxylic acid-modified polyisocyanates 失效
标题翻译：基于卤代羧酸改性的多异氰酸酯的蜂窝产品
公开(公告)号：US4197374A
公开(公告)日：1980-04-08
申请号：US942981
申请日：1978-09-18
申请人： Thirumurti Narayan , Harald P. Wulff
发明人： Thirumurti Narayan , Harald P. Wulff
IPC分类号： C08G18/78 , C08G18/80 , C08G18/14 , C08G18/77
CPC分类号： C08G18/80 , C08G18/78 , Y10S521/902
摘要： Stable, liquid polyisocyanate compositions are prepared by reacting a polyisocyanate or a mixture of polyisocyanates and halogen-containing carboxylic acids. The polyisocyanates hereof are used to prepare polyurethanes, polyisocyanurates, poly(isocyanurate-urethane) and the like. These isocyanates can be used in foam formation, films, fibers, coating solutions, elastomers and the like.
摘要翻译：通过使多异氰酸酯或多异氰酸酯和含卤素的羧酸的混合物反应来制备稳定的液体多异氰酸酯组合物。其聚异氰酸酯用于制备聚氨酯，聚异氰脲酸酯，聚（异氰脲酸酯 - 氨基甲酸酯）等。这些异氰酸酯可用于泡沫形成，膜，纤维，涂布溶液，弹性体等。

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