发明名称 |
METHOD OF MANUFACTURING A COPOLYMER OF TRIOXANE |
摘要 |
A method of manufacturing copolymers of trioxane by copolymerizing trioxane in the presence of a cation-active catalyst, and wherein one or more sterically-hindered phenols are incorporated into a monomer or monomers e.g. into the trioxane monomer prior to the polymerization in an amount of from 0.001 to 2.0% by weight based on the total amount of monomers, the polymerization reaction being subsequently carried out in the presence of said sterically-hindered phenols: characterized in that the polymer product is heated to a temperature above its melting point to selectively decompose constituents of the copolymeric product which are relatively unstable, leaving a polymeric trioxane product of enhanced stability. |
申请公布号 |
DE3474028(D1) |
申请公布日期 |
1988.10.20 |
申请号 |
DE19843474028 |
申请日期 |
1984.06.06 |
申请人 |
POLYPLASTICS CO. LTD. |
发明人 |
KASUGA, TAKUZO;ASANO, TAKESHI;IKENAGA, YUKIO;YAMAWAKI, MASAMI;TAKEDA, YASUYUKI, TAKEDA;ICHIMURA, KOICHI |
分类号 |
C08K5/13;C08G2/00;C08G2/18;C08G2/30;C08G2/36;C08K5/00;C08L59/00;C08L59/04;(IPC1-7):C08G2/36 |
主分类号 |
C08K5/13 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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