发明名称 |
A METHOD FOR POLYMERIZATION OF VINYL CHLORIDE MONOMER IN AN AQUEOUS MEDIUM |
摘要 |
The invention provides an improvement in the suspension polymerization of vinyl chloride in an aqueous medium in the presence of a monomer-soluble polymerization initiator, according to which the amount of polymer scale deposition on the reactor walls can be greatly decreased. The improvement comprises admixing the aqueous polymerization medium with (a) a water-soluble crosslinked copolymer of an unsaturated carboxylic acid monomer, e.g. acrylic acid, and a crosslinking monomer such as di(methyl)allyl ether of diethyleneglycol and (b) a non-ionic surface active agent in combination. |
申请公布号 |
ZA8504866(B) |
申请公布日期 |
1986.02.26 |
申请号 |
ZA19850004866 |
申请日期 |
1985.06.27 |
申请人 |
SHIN-ETSU CHEMICAL CO.,LTD. |
发明人 |
KENICHI ITOH;GENJI NOGUKI;MOTOAKI TANAKA;HITOSHI OHBA |
分类号 |
C08F2/00;C08F2/18;C08F2/20;C08F14/00;C08F14/06;C08F265/00;C08F265/02;C08F267/02 |
主分类号 |
C08F2/00 |
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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