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US5827805A Condensates of alkyl phenols and glyoxal and products derived therefrom 失效
烷基酚和乙二醛的冷凝物及其衍生产物

Condensates of alkyl phenols and glyoxal and products derived therefrom
摘要:
Compositions represented by the structures ##STR1## where Ar represents an aromatic group, each R is independently a hydrocarbyl group, at least one R having more than 12 carbon atoms, a is 1 to 4, and R' is hydrogen or alkyl, are useful as lubricant and fuel additives and as intermediates for the preparation of derivatives useful as such additives.
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