润滑科技信息平台

Phenolic corrosion inhibitors

专利摘要

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基本信息

专利类型:
发明专利
申请/专利号:
US1965494259
申请日期:
1965-10-08
专利申请人:
雪弗龙研究及工业技术公司
分类号:
["C23F11/10","C23F11/16"]
发明/设计人:
ABBOTT ANDREW D. ， LOWE WARREN
权利要求: We claim:1. A composition of matter which comprises the reaction product of a compound according to the formula:wherein R is an alkyl group of from 8 to 20 carbon atoms, n is a cardinal number not greater than 10, with from 1 to 10 weight percent of sulfur based on the weight of said compound, reacted at a temperature in the range of about 200° to 400° F. and in the presence of an inert hydrocarbon solvent.2. A composition of matter which comprises the reaction product of a compound of the formula:wherein R is an alkyl group of from 8 to 20 carbon atoms, n is a cardinal number not greater than 10 and primarily 0, with sulfur in from 1 to 10 weight percent based on1 The bis (dodecylph enol) disulfide was prepared as described in Exan in Example 1, excex^t that the reaction time was only 6.5 hours.It is evident from the above results that by combining excess sulfur, great enhancement of oxidation inhibition is obtained. Furthermore, wear is greatly reduced. At the same time, the excess sulfur does not make the oils excessively corrosive to copper.To further demonstrate the effectiveness of the compositions of this invention as lubricating oil additives, a composition prepared as described in Example 1 having: the additional sulfur was incorporated as describedthe weight of said compound at a temperature in the range of 200° to 400° F. and in the presence of from 5 to 50 weight percent of the total composition of an inert hydrocarbon solvent.3. A composition according to claim 2, wherein R is of from 10 to 16 carbon atoms, and sulfur is added in an amount of from 1 to 5 weight percent of said compound.4. A lubricating composition comprising an oil of lubri-ting viscosity and from 0.5 to 20 weight percent of a imposition according to claim 1.