公开(公告)号：US4975505A

公开(公告)日：1990-12-04

申请号：US501112

申请日：1990-03-29

申请人： Edward N. Squire

发明人： Edward N. Squire

IPC分类号： C08F234/02 ,  H05K1/03 ,  H05K3/28

CPC分类号： C08F234/02 ,  H05K1/034 ,  H05K3/285

摘要： Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole with at least one fluoro comonomer selected from one or more of ten defined classes having a recited minimum mole proportion of perfluoro-2,2-dimethyl-1,3-dioxole, in no event less than 65%, have high glass transition temperatures of 140.degree. C. or higher, low indices of refraction, and good physical properties, and low dielectric constants, which make them suitable for cladding optical fibers as well as for many electronics applications, including the manufacture of substrates for circuit boards. They all are soluble at room temperature in perfluoro(2-butyltetrahydrofuran), which makes it practical to apply them as coatings from solution.

公开(公告)号：US4399264A

公开(公告)日：1983-08-16

申请号：US323096

申请日：1981-11-19

申请人： Edward N. Squire

发明人： Edward N. Squire

IPC分类号： B01J27/08 ,  C01G30/00 ,  C07B61/00 ,  C07D317/42 ,  C08F14/20 ,  C08F34/00 ,  C08F34/02 ,  C08F214/20 ,  C08F214/26 ,  C08F234/02 ,  C08F14/18 ,  C08F14/22 ,  C08F14/26

CPC分类号： C08F34/02 ,  C07D317/42 ,  C08F214/262

摘要： Perfluoro-1,3-dioxole is a useful monomer, which polymerizes to either amorphous or liquid homopolymers and copolymerizes with tetrafluoroethylene as well as with other monomers to both crystalline and amorphous copolymers having one or more such comonomers incorporated therein. Amorphous homopolymers and copolymers of perfluoro-1,3-dioxole are useful in such applications as glazing for reactors for hydrogen fluoride reactions. Amorphous homopolymers and amorphous or crystalline copolymers form self-supporting films and can be used for coatings and linings which are inert to most chemicals and are stain and weather resistant and as dielectrics for electrical and electronic equipment. Liquid homopolymers can be used as hydraulic fluids and heat exchange media.

公开(公告)号：US4384094A

公开(公告)日：1983-05-17

申请号：US313731

申请日：1981-10-22

申请人： John E. Herweh ,  Thomas B. Garrett ,  Alan B. Magnusson

发明人： John E. Herweh ,  Thomas B. Garrett ,  Alan B. Magnusson

IPC分类号： C07D493/10 ,  C08F24/00 ,  C08F234/02 ,  C07D311/96

CPC分类号： C07D493/10 ,  C08F24/00

摘要： Substituted spiro 2H-1-benzopyran-2,3'-(3H)-naphtho(2,1-b)pyrans particularly suitable for use as precursors to stable colored pyrylium salts are disclosed.

摘要翻译： 公开了特别适合用作稳定着色的吡喃鎓盐的前体的取代的螺H 1 - 苯并吡喃-2,3' - （3H） - 萘（2,1-b）pyrans。

公开(公告)号：US4355148A

公开(公告)日：1982-10-19

申请号：US188397

申请日：1980-09-18

申请人： Robert W. Layer ,  Linwood P. Tenney

发明人： Robert W. Layer ,  Linwood P. Tenney

IPC分类号： C08G61/00 ,  C08G61/06 ,  C08G61/08 ,  C08L65/00 ,  C08F232/00 ,  C08F234/00

CPC分类号： C08L65/00 ,  C08G61/08

摘要： A polymeric composition of matter formed by ring opening polymerization using a metathesis catalyst comprising bound antioxidant which is a reaction product of a norbornene-type monomer and a norbornenyl phenolic antioxidant.

摘要翻译： 使用包含结合的抗氧化剂的复分解催化剂通过开环聚合形成的物质的聚合物组合物，其是降冰片烯型单体和降冰片烯基酚类抗氧化剂的反应产物。

公开(公告)号：US4136246A

公开(公告)日：1979-01-23

申请号：US736889

申请日：1976-10-29

申请人： George S. Li

发明人： George S. Li

IPC分类号： C08F12/00 ,  C08F32/00 ,  C08F34/00 ,  C08F220/00 ,  C08F220/42 ,  C08F232/02 ,  C08F234/02 ,  C08F212/34 ,  C08F220/48 ,  C08F244/00

CPC分类号： C08F220/42

摘要： Thermoplastic polymeric compositions having high heat-distortion temperatures and good processability and handling characteristics which function as gas and vapor barrier materials which are composed of an olefinically unsaturated nitrile, such as acrylonitrile, indene and a polyolefinic monomer, such as divinyl benzene, are described.

公开(公告)号：US4091199A

公开(公告)日：1978-05-23

申请号：US752162

申请日：1976-12-20

申请人： George S. Li ,  Gary W. Dirks

发明人： George S. Li ,  Gary W. Dirks

IPC分类号： C08F16/00 ,  C08F16/16 ,  C08F20/00 ,  C08F20/42 ,  C08F32/00 ,  C08F34/00 ,  C08F216/18 ,  C08F220/00 ,  C08F220/42 ,  C08F232/02 ,  C08F234/02 ,  C08F214/14 ,  C08F214/18 ,  C08F222/30 ,  C08F244/00

CPC分类号： C08F220/42

摘要： Polymer resins which are relatively high softening and function as gas and vapor barrier materials are composed of an olefinically unsaturated nitrile, such as acrylonitrile, a vinyl ether, such as butyl vinyl ether, and indene or coumarone.

摘要翻译： 相对高的软化作用并且作为气体和蒸气阻隔材料起作用的聚合物树脂由烯属不饱和腈如丙烯腈，乙烯基醚如丁基乙烯基醚和茚或香豆酮组成。

公开(公告)号：US3997709A

公开(公告)日：1976-12-14

申请号：US644123

申请日：1975-12-24

申请人： Walid Y. Aziz ,  Lawrence E. Ball ,  George S. Li

发明人： Walid Y. Aziz ,  Lawrence E. Ball ,  George S. Li

IPC分类号： C08F20/00 ,  C08F20/42 ,  C08F220/42 ,  C08F234/02

CPC分类号： C08F220/42

摘要： Polymeric resins which are high softening and function as gas and vapor barrier materials are composed of an olefinically unsaturated nitrile, such as acrylonitrile, isobutylene, and indene.

摘要翻译： 具有高软化性和作为气体和蒸气阻隔材料起作用的聚合树脂由烯属不饱和腈如丙烯腈，异丁烯和茚组成。

公开(公告)号：US3985942A

公开(公告)日：1976-10-12

申请号：US541272

申请日：1975-01-15

申请人： Masayasu Suzuki ,  Mitsuru Hoshino ,  Masaki Ohya

发明人： Masayasu Suzuki ,  Mitsuru Hoshino ,  Masaki Ohya

IPC分类号： C08F2/00 ,  C08F2/38 ,  C08F234/02

CPC分类号： C08F2/38

摘要： A process for producing vinyl or vinylidene polymers comprising polymerizing vinyl or vinylidene monomers in the presence of 0.1 to 5.0 % by weight of at least one compound represented by the following formula based upon the total weight of monomers, wherein the degree of polymerization of the vinyl or vinylidene polymers is controlled, ##EQU1## wherein R.sub.1 is --CR.sub.5 R.sub.6).sub.n wherein R.sub.5 and R.sub.6 are hydrogen atoms or alkyl groups containing 1 to 4 carbon atoms and n is an integer of 1 or more; R.sub.2 is a hydrogen atom or an alkyl group containing 1 to 4 carbon atoms; and R.sub.3 and R.sub.4 are hydrogen atoms or alkyl groups containing 1 to 4 carbon atoms may be combined to form a ring.

摘要翻译： 一种生产乙烯基或亚乙烯基聚合物的方法，包括在基于单体总重量的0.1至5.0重量％的至少一种由下式表示的化合物存在下聚合乙烯基或亚乙烯基单体，其中乙烯基或亚乙烯基单体的聚合度 或亚乙烯基聚合物被控制，其中R 1是-CR 5 R 6）n其中R 5和R 6是氢原子或含有1至4个碳原子的烷基，n是整数1或 更多; R2是氢原子或含有1至4个碳原子的烷基; 并且R 3和R 4是氢原子或可以组合含有1至4个碳原子的烷基以形成环。

公开(公告)号：US2847398A

公开(公告)日：1958-08-12

申请号：US35585953

申请日：1953-05-18

申请人： MONSANTO CHEMICALS

发明人： GLUESENKAMP EARL W ,  CALFEE JOHN D

IPC分类号： C08F234/02

CPC分类号： C08F234/02

公开(公告)号：US20240191014A1

公开(公告)日：2024-06-13

申请号：US18282456

申请日：2022-03-18

申请人： UNIMATEC CO., LTD.

发明人： Daichi TOGE ,  Daiki WATANABE ,  Kazunari ABE ,  Ikuo SOUTOME

IPC分类号： C08F234/02

CPC分类号： C08F234/02

摘要： An ethylene-(meth)acrylate-based elastomer having a structure in which 40 to 79.9 mol % of ethylene, 20.0 to 50.0 mol % of an alkyl (meth)acrylate containing an alkyl group having 1 to 8 carbon atoms and/or an alkoxy (meth)acrylate containing an alkoxyalkyl group having 2 to 8 carbon atoms, 0.05 to 20.0 mol % of an unsaturated dicarboxylic acid monosaturated ester, and 0 to 20.0 mol % of an unsaturated dicarboxylic anhydride are copolymerized, and having a monosaturated esterification rate of the acid anhydride of 70% or more as measured by IR. The ethylene-(meth)acrylate-based elastomer gives a vulcanizate having excellent heat resistance, and molding processability.