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公开(公告)号：US5889070A
公开(公告)日：1999-03-30
申请号：US152445
申请日：1998-09-14
Applicant: Steven L. Schilling , Clarence D. Blue , Ricky L. Adkins
Inventor： Steven L. Schilling , Clarence D. Blue , Ricky L. Adkins
CPC classification number: C08G18/3237
Abstract: Disclosed herein is an improved process for preparing a polyamine mixture derived by reacting aniline with formaldehyde in the presence of an acid catalyst the improvement comprising mildly reducing the polyamine mixture by a process step comprising catalytically or chemically hydrogenating the polyamine mixture in the presence of a metal catalyst.
Abstract translation: 本文公开了一种改进的制备通过苯胺与甲醛在酸催化剂存在下反应而得到的多胺混合物的方法，其改进包括通过包括在金属存在下催化或化学氢化多胺混合物的方法步骤轻度还原多胺混合物 催化剂。
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公开(公告)号：US5484819A
公开(公告)日：1996-01-16
申请号：US322815
申请日：1994-10-13
Applicant: Jeffrey S. Bolton , Ramon Kalyanaraman , Steven L. Schilling , Clarence D. Blue
Inventor： Jeffrey S. Bolton , Ramon Kalyanaraman , Steven L. Schilling , Clarence D. Blue
IPC: B01J27/10 , C07B61/00 , C07C209/24 , C07C209/78 , C07C211/44 , C07C211/54 , C07C263/10 , C07C265/14 , C08G12/08 , C08G18/00 , C08G18/08 , C08G18/76 , C08G101/00 , C08J9/02 , C08G18/70
CPC classification number: C08G18/7685 , C08G2101/00
Abstract: The present invention encompasses an improved process for preparing polymethylene polyphenyl polyisocyanate comprising reacting phosgene with polymethylene polyphenyl polyamine, the improvement wherein the polymethylene polyphenyl polyamine is acidified prior to phosgenation.
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3.发明授权
公开(公告)号：US5386059A
公开(公告)日：1995-01-31
申请号：US805407
申请日：1991-12-10
Applicant: Jeffrey S. Bolton , Ramon Kalyanaraman , Steven L. Schilling , Clarence D. Blue
Inventor： Jeffrey S. Bolton , Ramon Kalyanaraman , Steven L. Schilling , Clarence D. Blue
IPC: B01J27/10 , C07B61/00 , C07C209/24 , C07C209/78 , C07C211/44 , C07C211/54 , C07C263/10 , C07C265/14 , C08G12/08 , C08G18/00 , C08G18/08 , C08G18/76 , C08G101/00 , C08J9/02
CPC classification number: C08G18/7685 , C08G2101/00
Abstract: The present invention encompasses an improved process for preparing polymethylene polyphenyl polyisocyanate comprising reacting phosgene with polymethylene polyphenyl polyamine, the improvement wherein the polymethylene polyphenyl polyamine is acidified prior to phosgenation.
Abstract translation: 本发明包括一种制备聚亚甲基多苯基多异氰酸酯的改进方法，包括使光气与多亚甲基多苯基多胺反应，其中多亚甲基多苯基多胺在光气化之前被酸化。
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4.发明授权
公开(公告)号：US5962541A
公开(公告)日：1999-10-05
申请号：US95081
申请日：1998-06-10
Applicant: Brian H. Peterson , Frank C. Rossitto , William J. Nicola, Jr. , Clarence D. Blue
Inventor： Brian H. Peterson , Frank C. Rossitto , William J. Nicola, Jr. , Clarence D. Blue
CPC classification number: C08G18/10 , C08J9/144 , C08G2101/0025 , C08G2101/005 , C08J2375/04
Abstract: NCO-terminated prepolymers are made by reacting a polymeric diphenylmethane diisocyanate (PMDI) and a polyol having a functionality of from about 1.8 to about 4.0 and a molecular weight of from about 400 to about 2,000. The PMDI and polyol are reacted in amounts such that the equivalent ratio of isocyanate groups to hydroxyl groups is from about 15:1 to about 160:1. These prepolymers are useful in the production of polyurethane foams, particularly laminated foams.
Abstract translation: NCO封端的预聚物通过聚合二苯基甲烷二异氰酸酯（PMDI）和官能度为约1.8至约4.0，分子量为约400至约2,000的多元醇反应制备。 PMDI和多元醇的反应量使得异氰酸酯基与羟基的当量比为约15:1至约160:1。 这些预聚物可用于生产聚氨酯泡沫，特别是层压泡沫。
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Patent Agency Ranking
公开(公告)号：US6127463A
公开(公告)日：2000-10-03
申请号：US274405
申请日：1999-03-23
Applicant: Rick L. Adkins , Clarence D. Blue
Inventor： Rick L. Adkins , Clarence D. Blue
IPC: C08G18/00 , C08G18/76 , C08J3/00 , C07C249/00 , C07C251/00 , C08K5/15 , C08L75/00
CPC classification number: C08G18/7664 , C08G18/003
Abstract: The present invention relates to an improved process for the production of light colored polymethylene polyphenyl polyisocyanates. This process comprises adding a compound that contains an epoxide group to the process at any point prior to quench cooling the formed polyisocyanates.
Abstract translation: 本发明涉及一种生产浅色聚亚甲基多苯基多异氰酸酯的改进方法。 该方法包括在淬灭冷却形成的多异氰酸酯之前的任何时间向该方法中加入含有环氧基团的化合物。
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公开(公告)号：US5312971A
公开(公告)日：1994-05-17
申请号：US920229
申请日：1992-07-23
Applicant: Rick L. Adkins , Clarence D. Blue
Inventor： Rick L. Adkins , Clarence D. Blue
IPC: C07C263/10 , C07C263/20 , C07C265/14 , C08G18/76 , C07C263/18
CPC classification number: C07C263/10 , C08G18/7664
Abstract: The present invention is directed to a process for the production of polymethylene polyphenyl polyisocyanates by phosgenating the corresponding polyamines in solution in an inert organic solvent, removing excess phosgene, and stripping the solvent. The improvement resides in adding at least 0.02 parts by weight of reducing agent per 150 parts by weight of polyamine to the polyamines at any time prior to the stripping step.
Abstract translation: 本发明涉及通过在惰性有机溶剂中将溶液中相应的多胺光气化，除去过量的光气和汽提溶剂来生产多亚甲基多苯基多异氰酸酯的方法。 改进之处在于在汽提步骤之前的任何时间将至少0.02重量份的还原剂每150重量份的多胺添加到多胺中。
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公开(公告)号：US6166128A
公开(公告)日：2000-12-26
申请号：US207340
申请日：1998-12-08
Applicant: Rick L. Adkins , Clarence D. Blue , Jeffrey S. Bolton , Kirk J. Bourgeois , Mark R. Kratz , Brian H. Peterson , Roger C. Suter , Kenneth P. Yonek
Inventor： Rick L. Adkins , Clarence D. Blue , Jeffrey S. Bolton , Kirk J. Bourgeois , Mark R. Kratz , Brian H. Peterson , Roger C. Suter , Kenneth P. Yonek
CPC classification number: C08G18/003 , C08G18/7664
Abstract: This invention relates to a process for the reduction of color of polymethylene poly(phenylisocyanates). This process comprises mixing a polymethylene poly(phenylisocyanate) with an epoxide having an epoxide equivalent weight of about 44 to about 700, and heating this mixture to a temperature of from about 35 to about 150.degree. C. for at least about 15 minutes, with stirring. Suitable epoxides include epoxidized fatty acid monoglycerides, epoxidized fatty acid diglycerides, epoxidized fatty acid triglycerides, epoxidized dimer fatty acids and epoxidized trimer fatty acids.
Abstract translation: 本发明涉及降低聚亚甲基聚（苯基异氰酸酯）的颜色的方法。 该方法包括将聚亚甲基聚（苯基异氰酸酯）与环氧当量为约44至约700的环氧化物混合，并将该混合物加热至约35至约150℃的温度至少约15分钟， 搅拌。 合适的环氧化物包括环氧化脂肪酸单甘油酯，环氧化脂肪酸二甘油酯，环氧化脂肪酸甘油三酸酯，环氧化二聚体脂肪酸和环氧化三聚体脂肪酸。
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公开(公告)号：US5942151A
公开(公告)日：1999-08-24
申请号：US975434
申请日：1997-11-20
Applicant: Rick L. Adkins , Clarence D. Blue
Inventor： Rick L. Adkins , Clarence D. Blue
IPC: C07C263/10 , C07C263/20 , C07C265/14 , C08G12/08 , C08G12/40 , C08G18/76
CPC classification number: C07C263/10 , C07C263/20 , C08G18/7664
Abstract: A process for the production of polymethylene polyphenyl polyisocyanates is disclosed. The process comprises phosgenating the corresponding polyamines in solution in an inert organic solvent, removing excess phosgene, and stripping the solvent, the improvement wherein at least 0.00015 percent by weight of hydrazine or hydrazine derivative per 100 percent by weight of polyamine are added to the polyamines at any time prior to the stripping step.
Abstract translation: 公开了一种生产聚亚甲基多苯基多异氰酸酯的方法。 该方法包括使溶液中相应的多胺在惰性有机溶剂中光气化，除去过量的光气和汽提溶剂，其中每100重量％多胺加入至少0.00015重量％的肼或肼衍生物 在剥离步骤之前的任何时间。
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公开(公告)号：US5043473A
公开(公告)日：1991-08-27
申请号：US193306
申请日：1988-05-11
Applicant: William E. Slack , Clarence D. Blue
Inventor： William E. Slack , Clarence D. Blue
CPC classification number: C08G18/5048 , C08G18/10 , C08G18/7664 , C08G18/7818 , C08G18/8038
Abstract: The present invention is directed to a liquid, storage-stable isocyanate prepolymer having an isocyanate group content of from 10 to 30% by weight, prepared by reacting:i) a polyamine containing at least two aromatically bound primary amino groups prepared by hydrolyzing an isocyanate compound having an isocyanate group content of from 0.5 to 40% by weight, withii) an isocyanate mixture comprisinga) from 50 to 100% by weight of diphenylmethane diisocyanates of which from 3 to 50% by weight consist of the 2,2'- and 2,4'-isomers, andb) the balance being polyphenylpolymethylene polyisocyanates, with the proviso that if said mixture comprises from 95 to 100% by weight of diphenylmethane diisocyanate, at least 15% by weight of said diisocyanate consisting of the 2,2'- and 2,4'-isomers.
Abstract translation: 本发明涉及一种具有10-30重量％异氰酸酯基含量的液体储存稳定的异氰酸酯预聚物，其通过以下步骤制备：反应：i）通过水解异氰酸酯制备的含至少两个芳族结合的伯氨基的多胺 异氰酸酯基含量为0.5〜40重量％的化合物，ii）异氰酸酯混合物，其包含a）50-100重量％的二苯基甲烷二异氰酸酯，其中3至50重量％由2,2' 和2,4'-异构体，和b）余量为聚苯基聚亚甲基多异氰酸酯，条件是如果所述混合物包含95-100重量％的二苯基甲烷二异氰酸酯，则至少15重量％的所述二异氰酸酯由2 2'和2,4'-异构体。
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