首页>
外国专利>
Ethylene-hydrocarbon copolymeric viscosity improvers containing color and stability improvers
Ethylene-hydrocarbon copolymeric viscosity improvers containing color and stability improvers
展开▼
机译:含有颜色和稳定性改进剂的乙烯-烃共聚粘度改进剂
展开▼
页面导航
摘要
著录项
相似文献
摘要
The color and viscosity stability of copolymeric -olefin viscosity index improvers and of oils containing same are improved by the incorporation therein of minor amounts of N,N'-bis(2-hydroxy-5- alkylbenzyl)--diaminoethane wherein the alkyl group is a C. sub.4 to C.sub.30 alkyl group and the basic metal salts thereof.
展开▼