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专利名称：Polymeric species production 发明人：Allan S. Hay
申请号：US07/679104
申请日：19910402
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smil公开号：US05194563A
the ro歌词公开日：
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专利内容由知识产权出版社提供
英文版简历摘要：Linear aromatic polymeric species, particularly oligomers and polymers are produced under mild conditions in good yield by reacting an at least binuclear aromatic compound with an alkylidene bisphenol in the prence of a non C-alkylatable hydroxy substituted aromatic compound effective to stabilize a generated carbonium ion intermediate; the alkylidene bisphenol may be formed in situ from a ketone or aldehyde in the prence of a catalytic amount of a hydroxy substituted aromatic compound effective to generate a carbonium ion with the ketone or aldehyde; carrying out the reaction under reduced pressure, particularly high vacuum permits direct production of high polymers; the oligomers are uful in the manufacture of high molecular weight engineering or industrial plastics; the polymers may be ud directly as such plastics.
申请人：HAY; ALLAN S.
cierre>星期 英文代理机构：Swabey Ogilvy Renault
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