Lubricating compositions containing polyalkylated polyhydroxy aromatic compounds专利检索-....带稠环专利检索查询-专利查询网

Lubricating compositions containing polyalkylated polyhydroxy aromatic compounds
申请号	GB1268265	申请日	1965-03-25	公开(公告)号	GB1047553A	公开(公告)日	1966-11-09
申请人	MOBIL OIL CORP;			发明人
摘要	A lubricating composition comprises a lubricating oil and a polyalkylated polyhydroxy benzenoid compound containing at least three primary or secondary alkyl groups having at least twelve carbon atoms per group, and at least two phenolic hydroxy groups. The benzenoid compound, which acts as a high temperature anti-oxidant, may have one or more benzene nuclei, and these may be fused or separated by alkylene groups. Numerous examples are listed, including tri-(2-hexadecyl)-catechol, tris - dodecyl - 2,3 - dehydroxynaphthalene, bis - [tri - (2 - hexadecyl) - catechol] methane, and the products of alkylation of polyhydroxy benzenoid compounds with C15-C20 mixed olefin fractions or chlorinated waxes containing 24 to 26 carbon atoms per molecule. The benzenoid compound may comprise 0.1 to 10% by weight of the lubricant, and may be added in the form of its zinc, magnesium, barium, calcium or the salt. The lubricating oil may be a mineral oil, synthetic ester, synthetic hydrocarbon, silicone, polyalkylene oxide, phosphorus ester, polypropylene glycol. The composition may also include detergents, rust inhibitors, pour-point improvers, V.I. improvers and supplemental antioxidants.
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