发明名称 |
PROCESS FOR THE PREPARATION OF POLY(METH)ACRYLIC ACID ESTER |
摘要 |
A process for preparing a poly(meth)acrylic acid ester by polymerizing a (meth)acrylic acid ester by the use of an organometallic compound (such as (C5Me5)2SmMe(thf)) having at least one polymerization initiating site, characterized in that a compound having a reactive hydrogen atom in the molecule, such as acetophenone or 4-methyl-2-pentanone, is added as the chain transfer agent. This process facilitates molecular weight regulation, enables reduction in the amount of the organometallic compound to be used, and can provide a poly(meth)acrylic acid ester inhibited from discoloration and improved in the resistance to thermal degradation.
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申请公布号 |
WO9804595(A1) |
申请公布日期 |
1998.02.05 |
申请号 |
WO1997JP02574 |
申请日期 |
1997.07.24 |
申请人 |
MITSUBISHI RAYON CO., LTD.;YANAGASE, AKIRA;TONE, SEIJI;TOKIMITSU, TORU;NODONO, MITSUFUMI |
发明人 |
YANAGASE, AKIRA;TONE, SEIJI;TOKIMITSU, TORU;NODONO, MITSUFUMI |
分类号 |
C08F2/38;C08F20/12;(IPC1-7):C08F2/38;C08F20/10;C08L33/04 |
主分类号 |
C08F2/38 |
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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