发明授权
- 专利标题： Sulfonated butyl rubber latices
- 专利标题（中）： 硫化丁苯橡胶胶粘剂
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申请号： US3779974D申请日： 1972-09-26
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公开(公告)号： US3779974A公开(公告)日： 1973-12-18
- 发明人: HUBBARD A , POWERS K
- 申请人： EXXON RESEARCH ENGINEERING CO
- 专利权人： Exxon Research Engineering Co
- 当前专利权人： Exxon Research Engineering Co
- 优先权： US29241572 1972-09-26
- 主分类号： C08J3/07
- IPC分类号： C08J3/07 ; C08D5/00
摘要：
A RUBBER LATEX OF SULFONATED BUTYL RUBBER CONTAINING >0.5 MOLE PERCENT SO3H IS PREPARED BY FORMING AN EMULSION OF A SOLUTION OF SULFONATED BUTYL RUBBER IN A SUITABLE SOLVENT USING NON-IONIC EMULSIFIERS AND THEREAFTER STRIPPING OFF THE SOLVENT TO LEAVE A LATEX OF SULFONATED BUTYL RUBBER DISPERSED IN WATER. PRIOR TO STRIPPING THE SOLVENT, THE EMULSIFIERS ARE REMOVED FROM THE SYSTEM BY CENTRIFUGATION, THE SULFONATED BUTYL RUBBER BEING SELF-EMULSIFIABLE, ONCE IT HAS BEEN DISPERSED. PLASTICIZERS ARE ADDED TO THE LATEX TO PREVENT CRACKING OF FILMS PREPARED THEREFROM.
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