发明名称 |
PROCESS FOR MOLECULAR WEIGHT LOWERING OF POLYVINYL HALIDES |
摘要 |
<p>Vinyl halide homopolymers, copolymers and graft polymers of substantially lower molecular weight are obtained when polymerization is carried out in the presence of an organotin mercaptide ester and an organic azo initiator. The products are faster fusing and have lower melt viscosities than corresponding polymers of the same molecular weight prepared by high temperature molecular weight reduction methods. The low molecular weight and excellent fusion characteristics of the products render these polymers particularly useful an molding, extrusion. and coating applications.</p> |
申请公布号 |
CA1065994(A) |
申请公布日期 |
1979.11.06 |
申请号 |
CA19750242800 |
申请日期 |
1975.12.30 |
申请人 |
HOOKER CHEMICALS & PLASTICS CORP. |
发明人 |
WITSCHARD, GILBERT |
分类号 |
C08F14/00;C08F2/00;C08F2/02;C08F2/38;C08F14/06;C08F291/00;(IPC1-7):08F12/16;08K5/37;08F2/42 |
主分类号 |
C08F14/00 |
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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