发明名称 |
High bulk density PVC resin suspension polymerization with inhibitor |
摘要 |
A suspending agent system, a polymerizable reaction mixture, and a polymerization reaction process for producing high bulk density resin on a consistent basis by incorporating in the reaction mixture prior to initiation of the reaction about 1-250 parts per million by weight of polymerization inhibitor and also including about 0.001-0.1 parts by weight based on the weight of VCM of a highly hydrolyzed PVA. Preferred PVA's have a 4 weight percent aqueous solution viscosity of 30-100 centipoise and an effective polymerization inhibitor is diethylhydroxylamine. Bulk densities may be increased from about 3-10% depending upon the size of the reaction and the particular ingredients chosen.
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申请公布号 |
US4749757(A) |
申请公布日期 |
1988.06.07 |
申请号 |
US19860898964 |
申请日期 |
1986.08.21 |
申请人 |
EXXON CHEMICAL PATENTS INC. |
发明人 |
SCHRAM, CALVIN K.;SERRATORE, JOSEPH;WALLACE, JAMES R. |
分类号 |
C08F2/18;C08F2/40;C08F14/00;C08F14/06;(IPC1-7):C08F2/40 |
主分类号 |
C08F2/18 |
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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