专利名称：DIMERIZATION OF ALPHA-
METHYLSTYRENE
发明人：GOTO MASATO,MATSUMURA YASUO,DOI HIDEYUKI
幼儿教师师德师风演讲稿申请号：JP6591583
申请日：19830414
qq飞车更名卡>声音的词语公开号：JPH0332530B2
健康饮食搭配公开日：教父经典台词
最新的电视剧
19910513
专利内容由知识产权出版社提供
摘要：PURPOSE:In dimerizing the titled compound using activated clay or acid clay as a catalyst, to obtain an unsaturated linear dimer of the titled compound uful as a raw material for a lubricating oil of traction drive in high yield, by making Cellosolve exist in the reaction system. CONSTITUTION:In dimerizing alpha-methylstyrene using activated clay or acid clay as a catalyst, 2-40times, preferably 5-20times as much Cellosolve, preferably <=6C Cellosolve as the catalyst by weight is added to the reaction system, to prevent the catalyst from blocking, formation of high-boiling substances is suppresd, to give an unsaturated linear dimer of alpha-methylstyrene, especially 2,4- diphenyl-4-methylpentene-1 uful as a polymerization adjustor in high yield. This process has merits wherein amounts of the catalyst and the coexisting substance ud are small. The reaction temperature is 40-150 deg.C, preferably 50- 120 deg.C.
申请人：NIPPON PETROCHEMICALS CO LTD
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