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公开(公告)号:US3956246A
公开(公告)日:1976-05-11
申请号:US250125
申请日:1972-05-04
申请人: Russell K. Griffith , John F. Jones
发明人: Russell K. Griffith , John F. Jones
IPC分类号: C08F220/00 , C08F220/42 , C08F265/00 , C08F265/08 , C08F2/18 , C08F2/22
CPC分类号: C08F265/08
摘要: Impact-resistant polymers, which have low permeability to gases and vapors, are prepared by polymerizing methacrylonitrile with styrene to at least about 70% conversion and then introducing into the polymerization reaction medium a conjugated diene monomer, such as butadiene-1,3 and optionally styrene or methacrylonitrile, and completing the polymerization reaction.
摘要翻译: 通过将甲基丙烯腈与苯乙烯聚合至少约70%的转化率,然后将共轭二烯单体如丁二烯-1,3和任选地引入到聚合反应介质中来制备对气体和蒸气具有低渗透性的耐冲击聚合物 苯乙烯或甲基丙烯腈,并完成聚合反应。
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公开(公告)号:US3974239A
公开(公告)日:1976-08-10
申请号:US609373
申请日:1975-09-02
申请人: Russell K. Griffith , John F. Jones
发明人: Russell K. Griffith , John F. Jones
IPC分类号: C08F220/42 , C08F265/08 , C08F291/04 , C08F291/06 , C08F291/12
CPC分类号: C08F220/42 , C08F265/08
摘要: Impact-resistant polymers which have low permeability to gases and vapors are prepared by polymerizing an olefinic nitrile, such as acrylonitrile, optionally with an acrylic ester, such as methyl acrylate, to at least about 70% conversion, and then introducing into the polymerization reaction medium a conjugated diene monomer, such as butadiene-1,3, and completing the polymerization reaction in the presence of said diene monomer.
摘要翻译: 对气体和蒸气具有低渗透性的耐冲击聚合物通过将任选与丙烯酸酯如丙烯酸甲酯的烯烃腈如丙烯腈聚合至至少约70%转化率,然后引入聚合反应中来制备 中和共轭二烯单体如丁二烯-1,3,并在所述二烯单体存在下完成聚合反应。
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公开(公告)号:US4022957A
公开(公告)日:1977-05-10
申请号:US363011
申请日:1973-05-23
申请人: Russell K. Griffith
发明人: Russell K. Griffith
IPC分类号: C08F220/00 , C08F220/42 , C08F220/44 , C08F236/00 , C08F236/04 , C08F36/06
CPC分类号: C08F220/44
摘要: Thermoplastic polymers having high heat-distortion temperatures and low permeability to gases and vapors are prepared by copolymerizing in a specified manner an olefinic nitrile, such as acrylonitrile, with a small amount of a conjugated diene, such as butadiene.
摘要翻译: 通过以特定的方式将烯属腈如丙烯腈与少量的共轭二烯如丁二烯共聚来制备具有高热变形温度和对气体和蒸气的低渗透性的热塑性聚合物。
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