Invention Grant
US5614124A Polyisobutylene succinimide, ethylene-propylene succinimide and an
alkylated phenothiazine additive for lubricating oil compositions
失效
聚异丁烯琥珀酰亚胺，乙烯 - 丙烯琥珀酰亚胺和用于润滑油组合物的烷基化吩噻嗪添加剂
- Patent Title: Polyisobutylene succinimide, ethylene-propylene succinimide and an alkylated phenothiazine additive for lubricating oil compositions
- Patent Title (中): 聚异丁烯琥珀酰亚胺，乙烯 - 丙烯琥珀酰亚胺和用于润滑油组合物的烷基化吩噻嗪添加剂
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Application No.: US481212Application Date: 1995-06-07
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Publication No.: US5614124APublication Date: 1997-03-25
- Inventor: Carl K. Esche, Jr. , Cyril A. Migdal , John R. Sanderson , Anthony L. Ippolito
- Applicant: Carl K. Esche, Jr. , Cyril A. Migdal , John R. Sanderson , Anthony L. Ippolito
- Applicant Address: VA Richmond
- Assignee: Ethyl Additives Corporation
- Current Assignee: Ethyl Additives Corporation
- Current Assignee Address: VA Richmond
- Main IPC: C10M141/08
- IPC: C10M141/08 ; C10M163/00 ; C10M157/04
Abstract:
A lubricating oil composition comprising:(a) a major amount of an oil of lubricating viscosity; and(b) a minor amount of a synergistic combination of an antioxidant-dispersant additive and a dispersant additive, said combination comprising:(i) a polyisobutylene succinimide;(ii) an ethylene-propylene succinimide; and(iii) an akylated phenothiazine represented by the formula ##STR1## wherein R.sup.1 is a linear or branched (C.sub.4 -C.sub.24) alkyl, heteronlykl or alkylary group; and R.sup.2 is H or a linear or branched (C.sub.4 -C.sub.24) alkyl group.
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Information query
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