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US4787996A Mannich base oil additives 失效
曼尼希基础油添加剂

Mannich base oil additives
摘要:
Mannich bases, prepared using a phenol substituted with a medium length branched alkyl chain, the alkyl being derived from a 1-olefin oligomer. These Mannich bases act as friction-reducing agents in lubricant and liquid fuel compositions.
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