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公开(公告)号：US5077382A
公开(公告)日：1991-12-31
申请号：US427286
申请日：1989-10-26
CPC分类号： H01L23/145 , C08G73/1042 , C08G73/1067 , C08G73/1071 , H01L24/29 , H01L2924/12033
摘要： A co-polyimide based upon a mixture of 4,4'-oxydiphthalic dianhydride (ODPA) and 3,4,3',4'-biphenyltetracarboxylic dianhydride (BPDA) as the dianhydride component and either 4,4'-oxydianiline (ODA) or paraphenylene diamine as the amine component is disclosed. The molar ratio between the ODPA and BPDA ranges from 3:1 to 1:3. The co-polyimide may either be formed as a random copolymer, or as a block copolymer where the blocks are based upon blocks of polymer containing ODPA and blocks of polymer containing BPDA provided that the molar ratios of ODPA and BPDA are in the ratio of 3:1 to 1:3.
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公开(公告)号：US5171828A
公开(公告)日：1992-12-15
申请号：US739954
申请日：1991-08-05
CPC分类号： C08G73/1071 , C08G73/1042 , C08G73/1067 , H01L23/145 , H01L2924/0002 , Y10T428/28 , Y10T428/2852 , Y10T428/2896 , Y10T428/294 , Y10T428/31681 , Y10T428/31721
摘要： Polyimide copolymers are disclosed having the recurring structure ##STR1## wherein AR is AR.sub.1 or AR.sub.2, wherein AR.sub.1 is ##STR2## and wherein AR.sub.2 is ##STR3## provided that the molar ratio of AR.sub.1 to AR.sub.2 is 3:1 to 1:3, and wherein AR.sub.3 is ##STR4## These polyimides have unexpected properties which are useful in various electronic applications.
摘要翻译： 公开了具有重复结构“IMAGE”的聚酰亚胺共聚物，其中AR为AR1或AR2，其中AR1为“IMA”，其中AR2为“IMA”，条件是AR1与AR2的摩尔比为3：1至1：3， 其中AR 3是这些聚酰亚胺具有意想不到的性质，其可用于各种电子应用。
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公开(公告)号：US4391991A
公开(公告)日：1983-07-05
申请号：US316199
申请日：1981-10-29
IPC分类号： C07C85/00
CPC分类号： C07C209/40
摘要： Para-fluoroaniline is prepared by reaction of N-phenylhydroxylamine with anhydrous hydrogen fluoride at atmospheric pressure and reflux conditions.
摘要翻译： 对 - 氟苯胺通过N-苯基羟胺与无水氟化氢在大气压和回流条件下反应来制备。
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公开(公告)号：US4810743A
公开(公告)日：1989-03-07
申请号：US151213
申请日：1988-02-01
申请人： Rudolph F. Mundhenke
发明人： Rudolph F. Mundhenke
摘要： UV stable, impact resistant, flame retarded ABS compositions are obtained by compounding ABS with nitrile rubber, surfactant, Diels-Alder adduct of 2 moles of chlorocyclopentadiene and 1 mole of cyclooctadiene (commonly known as Dech Plus) and antimony oxide. Such compositions consist essentially by weight of from about 1% to about 9% nitrile rubber, from about 0.3% to about 5% surfactant, from about 14% to about 30% Dech Plus, from about 4% to about 20% antimony oxide and from about 50% to about 80.9% ABS. The ABS constituent has an Izod Impact Strength of at least 1.5 foot-pounds per inch. The nitrile rubber is preferably acrylonitrile-butadiene copolymer containing by weight from about 15 to about 50% acrylonitrile component, and the surfactant is preferably siloxane-oxyalkylene copolymer. The compositions have Izod Impact Strengths ranging from 2.0 to 4 foot-pounds per inch and in most cases a V-O (UL94) flammability classification.
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5.发明授权UV stable, impact resistant, flame retarded ABS composition containing aliphatic resin 失效UV稳定，耐冲击，阻燃ABS组合物含脂肪族树脂
公开(公告)号：US4810742A
公开(公告)日：1989-03-07
申请号：US151214
申请日：1988-02-01
申请人： Rudolph F. Mundhenke
发明人： Rudolph F. Mundhenke
摘要： UV stable, impact resistant, flame retarded thermoplastic compositions are obtained by compounding ABS with aliphatic resin, Diels-Alder adduct of 2 moles of chlorocyclopentadiene and 1 mole of cyclooctadiene (commonly known as Dech Plus), antimony oxide and optionally with nitrile rubber and/or surfactant. Such compositions consist essentially by weight of from about 0.5 to about 10% of aliphatic resin, from 0% to about 5% nitrile rubber, from 0% to about 5% surfactant, from about 14% to about 30% Dech Plus, from about 4% to about 20% antimony oxide and from about 50% to about 80% ABS. The ABS constituent has an Izod Impact Strength of at least 1.5 foot-pounds per inch; the amounts of said aliphatic resin, said nitrile rubber and said surfactant being such as to provide an Izod Impact Strength in foot-pounds per inch of notch determined by ASTM D-256, of at least 2.0 in the thermoplastic composition. The compositions have Izod Impact Strengths ranging from up to 4 foot-pounds per inch and in most cases a V-O (UL94) flammability classification.
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