发明名称 |
OLEFIN POLYMER VISCOSITY INDEX IMPROVER ADDITIVE USEFUL IN OIL COMPOSITIONS |
摘要 |
Olefin polymers are degraded in molecular weight in the presence of a free radical initiator under an inert blanket. The degradation preferably is carried out under high shearing stress and/or a high temperature in order to increase the degradation. The degradation may be separate from, overlap, or occur simultaneously with further derivatization of the polymer. |
申请公布号 |
AR243905(A1) |
申请公布日期 |
1993.09.30 |
申请号 |
AR19860304467 |
申请日期 |
1986.07.08 |
申请人 |
EXXON CHEMICAL PATENTS, INC. |
发明人 |
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分类号 |
C10M143/00;C08F8/32;C08F8/50;C08F255/00;C08F255/02;C10N30/02;C10N40/25;C10N70/00 |
主分类号 |
C10M143/00 |
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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