专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4076763A Polysiloxane/polycarbodiimide copolymers 失效
标题翻译：聚硅氧烷/聚碳二亚胺共聚物
公开(公告)号：US4076763A
公开(公告)日：1978-02-28
申请号：US758528
申请日：1977-01-11
申请人： Karl-Friedrich Thom , Reinhard Schliebs
发明人： Karl-Friedrich Thom , Reinhard Schliebs
IPC分类号： C08G77/00 , C08G18/10 , C08G18/61 , C08G77/42 , C08G77/458 , C08G77/48 , C08G77/54 , H01B3/46 , C08L83/00
CPC分类号： C08G77/54 , C08G18/10 , C08G18/61 , C08G77/42 , C08G77/458
摘要： An organopolysiloxane/polycarbodiimide copolymer comprising optionally repeating structural units of the formula ##STR1## wherein R is an alkyl, alkenyl or aryl radical with up to 12 carbon atoms,R.sup.1 is an alkyl radical with up to 4 carbon atoms,R.sup.2 is a divalent hydrocarbon radical with up to 6 carbon atoms,X is oxygen or the group ##STR2## R.sup.3 is hydrogen or an alkyl, aryl, aralkyl or cycloalkyl radical with up to 8 carbon atoms,A is a divalent aromatic radical with up to about 40 carbon atoms,n is an integer from 0 to about 10,000,z is an integer from 1 to about 1500Is produced by reacting a stoichiometric excess of a diisocyanate of the formula A(NCO).sub.2 with at least one member selected from the group consisting of an .alpha.,.omega.-diaminoalkylpolysiloxane of the formula ##STR3## and an .alpha.,.omega.-dihydroxypolysiloxane of the formula ##STR4## in the presence of a carbodiimidization catalyst.
摘要翻译：一种有机聚硅氧烷/聚碳二亚胺共聚物，其包括任选地具有下式的重复结构单元：其中R是具有至多12个碳原子的烷基，烯基或芳基，R 1是具有至多4个碳原子的烷基，R 2是二价烃具有多达6个碳原子的基团，X是氧或基团R 3是氢或具有至多8个碳原子的烷基，芳基，芳烷基或环烷基，A是具有至多约40个碳原子的二价芳族基团，N是从0到约10,000的整数，Z是从1到约1500的整数，通过使至少一个选自以下的组成员的组合中的至少一个成员反应式（NCO）2的二异氰酸酯的生物降解产生： α，ω-二氨基烷基聚硅氧烷和式（IMAGE）的α，ω-二羟基聚硅氧烷在碳二亚胺化催化剂存在下反应。

2. 发明授权

US4073801A Process for the preparation of linear and branched chlorosiloxanes 失效
标题翻译：制备直链和支链氯硅氧烷的方法
公开(公告)号：US4073801A
公开(公告)日：1978-02-14
申请号：US627302
申请日：1975-10-30
申请人： Hans-Heinrich Moretto , Armand DE Montigny , Karl-Friedrich Thom , Reinhard Schliebs
发明人： Hans-Heinrich Moretto , Armand DE Montigny , Karl-Friedrich Thom , Reinhard Schliebs
IPC分类号： C08G77/00 , B01J27/00 , C07F7/08 , C07F7/12 , C08G77/06 , C08G77/08 , C08G77/10 , C08G77/22 , C08G77/24 , C08G77/28 , C08G77/385 , C08G77/42
CPC分类号： C08G77/24 , C08G77/10 , C08G77/385
摘要： A chlorosilane or partial hydrolysis product thereof is reacted with a siloxane and stable polymeric products of comparatively high molecular weight or high chlorine content are produced by effecting the reaction in the presence of a siloxane protonic acid equilibration catalyst in combination with a hydrogen halide acid. The hydrogen halide acid may be produced in situ. Representative protic acid equilibration catalysts include sulfuric acid, oleum, polysulfuric acids, sulfonic acids including aromatic, alkyl and perfluoroalkyl sulfonic acids, and polysulfonic acids.
摘要翻译：将氯硅烷或其部分水解产物与硅氧烷反应，并通过在硅氧烷质子酸平衡催化剂与卤化氢酸的组合下进行反应来制备具有相对高分子量或高氯含量的稳定的聚合产物。可以原位生产卤化氢。代表性的质子酸平衡催化剂包括硫酸，发烟硫酸，多硫酸，包括芳族，烷基和全氟烷基磺酸的磺酸和聚磺酸。

3. 发明授权

US4760046A Process for the production of activated carbons using phoshoric acid 失效
标题翻译：使用磷酸生产活性炭的方法
公开(公告)号：US4760046A
公开(公告)日：1988-07-26
申请号：US95306
申请日：1987-09-10
申请人： Alex Burger , Karl-Friedrich Thom , Peter Schmidt
发明人： Alex Burger , Karl-Friedrich Thom , Peter Schmidt
IPC分类号： C01B31/12 , B01J20/20
CPC分类号： C01B31/12
摘要： Activated carbon is produced by an improved process which comprises subjecting a mash comprising carbon-containing combustibles, phosphoric acid and water to a rapid thermal pretreatment at temperatures of from 80.degree. to 250.degree. C. in the presence of steam and oxygen followed by activation at temperatures of from 250.degree. to 550.degree. C. for no more than 30 minutes.
摘要翻译：通过改进的方法生产活性炭，其包括在蒸汽和氧气存在下，使包含含碳可燃物，磷酸和水的混合物在80-250℃的温度下进行快速热预处理，随后在温度为250〜550℃，时间不超过30分钟。

4. 发明授权

US4102940A Working up polysiloxane/polycarbonate copolymers 失效
标题翻译：加工聚硅氧烷/聚碳酸酯共聚物
公开(公告)号：US4102940A
公开(公告)日：1978-07-25
申请号：US747264
申请日：1976-12-03
申请人： Karl-Friedrich Thom , Gunther Maass , Manfred Beck
发明人： Karl-Friedrich Thom , Gunther Maass , Manfred Beck
IPC分类号： C08G77/00 , C08G64/18 , C08G64/40 , C08G77/42 , C08G77/448 , C08G81/00 , C08L43/04
CPC分类号： C08G81/00 , C08G64/186 , C08G64/403 , C08G77/448
摘要： In the preparation and working up of a SiOC-linked polysiloxane/polycarbonate copolymer comprising reacting an .alpha.,.omega.-dihalogenopolysiloxane with an .alpha.,.omega.-dihydroxy-oligocarbonate in the presence of a tertiary amine and a solvent, and subsequently separating off the resulting copolymer from the reaction mixture additionally containing the amine, amine hydrochloride and organic solvent, the improvement which comprises subjecting the reaction mixture to steam distillation whereby the copolymer remains behind. Advantageously, the copolymer reaction solution is added to an aqueous solution having a pH of 7 to 8 whereby the amine and hydrogen chloride also distill over. If a surface active agent is present in the aqueous solution the product will be of very fine particle size.
摘要翻译：在制备和加工含SiOC的聚硅氧烷/聚碳酸酯共聚物时，包括使α，ω-二卤基聚硅氧烷与α，ω-二羟基 - 低聚碳酸酯在叔胺和溶剂的存在下反应，随后将所得的共聚物从另外含有胺，盐酸盐和有机溶剂的反应混合物中，改进包括使反应混合物进行蒸汽蒸馏，由此共聚物保留在后面。有利地，将共聚物反应溶液加入到pH为7至8的水溶液中，由此胺和氯化氢也蒸馏出来。如果表面活性剂存在于水溶液中，则产品将具有非常细的粒度。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式