METHOD FOR PRODUCING CYANOGEN-HALIDE, CYANATE ESTER COMPOUND AND METHOD FOR PRODUCING THE SAME, AND RESIN COMPOSITION
申请人:MITSUBISHI GAS CHEMICAL COMPANY, INC.
公开号:US20150299110A1
公开(公告)日:2015-10-22
A method for efficiently producing a cyanogen halide with suppressed side effects, and a method for producing a high-purity cyanate ester compound at a high yield includes contacting a halogen molecule with an aqueous solution containing hydrogen cyanide and/or a metal cyanide, so that the hydrogen cyanide and/or the metal cyanide is allowed to react with the halogen molecule in the reaction solution to obtain the cyanogen halide, wherein more than 1 mole of the hydrogen cyanide or the metal cyanide is used based on 1 mole of the halogen molecule, and when an amount of substance of an unreacted hydrogen cyanide or an unreacted metal cyanide is defined as mole (A) and an amount of substance of the generated cyanogen halide is defined as mole (B), the reaction is terminated in a state in which (A):(A)+(B) is between 0.00009:1 and 0.2:1.
Hydroquine-bisphenol cyclic copolycarbonates and method of preparation
申请人:GENERAL ELECTRIC COMPANY
公开号:EP0375935A2
公开(公告)日:1990-07-04
Cyclic copolycarbonate oligomer mixtures are prepared from mixtures of hydroquinone bischloroformate and bischloroformates of bisphenols, typically bisphenol A or a spirobiindane bisphenol, by condensation in the presence of an amine, an aqueous base and a non-polar organic liquid. They may be converted to solvent-resistant linear polycarbonates, many of which are crystalline.
环状共聚碳酸酯低聚物混合物由对苯二酚双氯甲酸酯和双酚(通常为双酚 A 或螺双茚满双酚)双氯甲酸酯的混合物在胺、水基和非极性有机液体存在下通过缩合制备而成。它们可转化为耐溶剂线性聚碳酸酯,其中许多是结晶状的。
Linear copolycarbonates from hydroquinone-bisphenol cyclic copolycarbonates
申请人:GENERAL ELECTRIC COMPANY
公开号:EP0375936A2
公开(公告)日:1990-07-04
Cyclic copolycarbonate oligomer mixtures are prepared from mixtures of hydroquinone bischloroformate and bischloroformates of bisphenols, typically bisphenol A or a spirobiindane bisphenol, by condensation in the presence of an amine, an aqueous base and a non-polar organic liquid. By heating with a polycarbonate formation catalyst, they may be converted to solvent-resistant linear polycarbonates, many of which are crystalline.
环状共聚碳酸酯低聚物混合物是由对苯二酚双氯甲酸酯和双酚(通常为双酚 A 或螺环茚满双酚)双氯甲酸酯的混合物在胺、水基和非极性有机液体存在下通过缩合制备而成。通过与聚碳酸酯形成催化剂一起加热,它们可以转化为耐溶剂线性聚碳酸酯,其中许多是结晶状的。
Method for preparing hydroquinone and hydroquinone-bisphenol A bischloroformates
申请人:GENERAL ELECTRIC COMPANY
公开号:EP0378857A2
公开(公告)日:1990-07-25
Bischloroformates of bisphenol compositions comprising hydroquinone or a hydroquinone-bisphenol A mixture are prepared by passing phosgene into a vigorously agitated mixture of water, an alkaline earth metal hydroxide, the bisphenols and a substantially inert, water-immiscible organic liquid such as methylene chloride. The molar ratio of water to alkaline earth metal hydroxide is in the range of about 3-8:1. The bisphenols and at least a portion of the organic liquid are preferably initially present in the reaction mixture, and the alkaline earth metal hydroxide is preferably added during phosgenation.
双酚组合物的双氯甲酸酯包括对苯二酚或对苯二酚-双酚 A 混合物,制备方法是将光气通入由水、碱土金属氢氧化物、双酚和基本惰性、水不溶性有机液体(如二氯甲烷)组成的剧烈搅拌混合物中。水与碱土金属氢氧化物的摩尔比约为 3-8:1。双酚和至少一部分有机液体最好最初就存在于反应混合物中,碱土金属氢氧化物最好在磷化过程中加入。
Modified bisphenols
申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0397277A2
公开(公告)日:1990-11-14
Ring-arylcyclobutenealkylated di(hydroxyphenyl) compounds having at least one arylcyclobutenealkyl moiety attached to at least one of the phenyl rings self-cure upon heating to produce rigid, relatively insoluble resins of the thermoset type.