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公开(公告)号：US4463164A
公开(公告)日：1984-07-31
申请号：US466746
申请日：1983-02-15
摘要： An improved method for the production of polyphenylene ethers is disclosed. The method comprises oxidatively coupling monohydric phenols in the presence of a complex catalyst and in a liquid medium which is a solvent for the monomer and catalyst and a non-solvent for the polyphenylene ether. The polyphenylene ether precipitates to form a slurry of particulate solids which is then washed with an aqueous solution of a chelating agent to remove catalyst residue.
摘要翻译： 公开了一种生产聚苯醚的改进方法。 该方法包括在复合催化剂和作为单体和催化剂的溶剂的液体介质和聚苯醚的非溶剂的存在下氧化偶合一元酚。 聚苯醚沉淀形成颗粒固体的浆液，然后用螯合剂的水溶液洗涤以除去催化剂残余物。
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公开(公告)号：US5276091A
公开(公告)日：1994-01-04
申请号：US41644
申请日：1993-04-01
IPC分类号： C08F212/14 , C08L55/02 , C08G63/48
CPC分类号： C08F212/14 , C08L55/02
摘要： Polymeric compositions, such as thermoplatic molding compositions, are rendered flame retardant by blending the base polymer with a stable interpolymer prepared by copolymerizing a brominated monovinyl aromatic monomer, a methacrylic acid ester and, optionally, an ethylenically unsaturated nitrile.
摘要翻译： 通过将基础聚合物与通过共聚溴化单乙烯基芳族单体，甲基丙烯酸酯和任选的烯键式不饱和腈制备的稳定共聚体来将聚合物组合物，如热塑性模塑组合物，变成阻燃剂。
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公开(公告)号：US4169195A
公开(公告)日：1979-09-25
申请号：US881086
申请日：1978-02-24
申请人： Michael K. Rinehart
发明人： Michael K. Rinehart
IPC分类号： C08F212/12 , C08F212/06 , C08F212/10
CPC分类号： C08F212/12
摘要： Polymers containing greater than 60 wt% alpha methylstyrene, from 28 to 35 wt% acrylonitrile and from 0 to 7 wt% styrene having excellent color and usefully high molecular weights result from suspension polymerization of the monomer mixture above 90.degree. C. and employing monomer phase to aqueous phase ratios greater than 1:1.5.
摘要翻译： 包含大于60重量％的α-甲基苯乙烯，28至35重量％的丙烯腈和0至7重量％的具有优异颜色和有用的高分子量的苯乙烯的聚合物得自单体混合物在90℃以上的悬浮聚合并且使用单体相 水相比大于1:1.5。
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公开(公告)号：US5227443A
公开(公告)日：1993-07-13
申请号：US454543
申请日：1989-12-21
IPC分类号： C08F212/14 , C08L55/02
CPC分类号： C08F212/14 , C08L55/02
摘要： Polymeric compositions, such as thermoplastic molding compositions, are rendered flame retardant by blending the base polymer with a stable interpolymer prepared by copolymerizing a brominated monovinyl aromatic monomer, a methacrylic acid ester and, optionally, an ethylenically unsaturated nitrile.
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公开(公告)号：US5036126A
公开(公告)日：1991-07-30
申请号：US529369
申请日：1990-05-30
摘要： Flame retardant polymer blend compositions comprise a polycarbonate polymer, an ABS resin, a phosphate ester flame retardant and a terpolymer formed from an aryl brominated monovinylic aromatic monomer, an ethylenically unsaturated nitrile monomer, and an alkyl methacrylate monomer in which the alkyl group has from 1 to 4 carbon atoms. A preferred terpolymer comprises a dibromostyrene-acrylonitrile-methyl methacrylate terpolymer.
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