Title:
硫化ポリイソブチレンベースの摩耗・酸化防止剤
Document Type and Number:
Japanese Patent JP4895478
Kind Code:
B2
Abstract:
There is disclosed the use of a composition prepared by sulfurization of a highly reactive polyisobutylene having at least 25% of a methylvinylidene isomer and wherein the polyisobutylene has a number average molecular weight in the range of about 120 to about 600 with a sulfur source at a reaction temperature in excess of about 175°C; wherein said use of the composition is as an antiwear agent and/or as an extreme pressure agent in a lubricating oil composition. Also disclosed is a process for preparing a sulfurized olefin composition comprising: reacting a polyisobutylene having at least 25% of a methylvinylidene isomer and wherein the polyisobutylene has a number average molecular weight in the range of about 120 to about 600 with elemental sulfur at a reaction temperature in excess of 175°C.
Inventors:
Kennis Nelson
Frank Plabach
Frank Plabach
Application Number:
JP2004022131A
Publication Date:
March 14, 2012
Filing Date:
January 29, 2004
Export Citation:
Assignee:
Chevron Oronite Company LRC
International Classes:
C07D339/04; C08F8/34; C10M125/26; C10M135/04; C10M135/34; C10M137/10; C10M151/04; C10M169/04; C10N10/02; C10N20/00; C10N20/04; C10N40/04
Domestic Patent References:
| JP63183183A | ||||
| JP61500266A | ||||
| JP64026697A | ||||
| JP6503101A | ||||
| JP2001348592A | ||||
| JP2002275492A | ||||
| JP2002129184A | ||||
| JP2002097488A | ||||
| JP5263090A | ||||
| JP2002173411A |
Foreign References:
| US3427246 | ||||
| US5408018 | ||||
| US2658900 | ||||
| US2995569 |
Other References:
LANDIS, P.S.,Chem. Rev.,65,pp.237-245 (1965)
Attorney, Agent or Firm:
Yanagawa Yasuo