Verwendung von Olefinpolymerisat-Viskositätsindexver- besserungsadditiv in Ölzusammensetzungen.
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
DE3650313(D1)
申请公布日期
1995.06.08
申请号
DE19863650313
申请日期
1986.07.04
申请人
EXXON CHEMICAL PATENTS INC., FLORHAM PARK, N.J., US
发明人
CHUNG, DAVID YEN-LUNG, EDISON, NJ 08820, US;JOHNSTON, JOHN ERIC, WESTFIELD, NJ 07090, US