发明授权
US3647701A Process for preparing a mixture of 4-methyl-delta-tetrahydrophthalic anhydrides as a curing agent
失效
用于制备作为固化剂的4-甲基 - 三 - 四氢对苯二甲酸酐混合物的方法
- 专利标题： Process for preparing a mixture of 4-methyl-delta-tetrahydrophthalic anhydrides as a curing agent
- 专利标题（中）： 用于制备作为固化剂的4-甲基 - 三 - 四氢对苯二甲酸酐混合物的方法
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申请号： US3647701D申请日： 1970-01-06
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公开(公告)号： US3647701A公开(公告)日： 1972-03-07
- 发明人: ROBINSON ROBERT E , HOFF RONALD L DE
- 申请人： VANDERBILT CO R T
- 专利权人： Vanderbilt Co R T
- 当前专利权人： Vanderbilt Co R T
- 优先权： US104970 1970-01-06
- 主分类号： C08G59/42
- IPC分类号： C08G59/42 ; C07D5/38 ; C08F45/72
摘要：
THE SPECIFICATION RELATES TO A PROCESS FOR PREPARING LIQUID ISOMERIMIZED ANHYDRIDE CURING AGENT BY REACTING IOSPRENE, BUTADIENE, MALEIC ANHYDRIDE OR THE LIKE TO PROVIDE AN INTERMEDIATE PRODUCT WHICH IS SUBSEQUENTLY REARRANGED IN THE PRESENCE OF AN ORGANIC SULFONIC ACID. THE SPECIFICATION ALSO RELATES TO THE CURING AGENT PREPARED THEREFROM AND ITS USE IN EPOXY RESINS.
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