发明名称 |
Vinyl chloride polymer blend composition |
摘要 |
The present invention provides a vinyl chloride polymer composition comprising an intimate mixture of a first vinyl chloride polymer containing a sulfide linkage in the molecular chain and a second vinyl chloride polymer having a higher molecular weight than the first polymer, and a process for producing a first vinyl chloride polymer for use in the composition, comprising polymerizing vinyl chloride or a mixture of vinyl chloride and an ethylenically unsaturated monomer in the presence of a free radical initiator using as a chain transfer agent a mercapto compound or a disulfide compound. Said vinyl chloride polymer composition has been improved in heat stability and processability.
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申请公布号 |
US4267084(A) |
申请公布日期 |
1981.05.12 |
申请号 |
US19790081070 |
申请日期 |
1979.10.02 |
申请人 |
TOKUYAMA SODA KABUSHIKI KAISHA |
发明人 |
MIZUTANI, YUKIO;MITANI, KATSUO;MAEHARA, TAKASHI |
分类号 |
C08L27/00;C08L1/00;C08L27/06;(IPC1-7):C08L27/06 |
主分类号 |
C08L27/00 |
代理机构 |
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地址 |
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