Title:
【発明の名称】潤滑油用分散剤の製造に用いるためのエチレン及び1-ブテンから誘導されたポリマー
Document Type and Number:
Japanese Patent JP3367673
Kind Code:
B2
Abstract:
The invention pertains to oil soluble copolymers derived from ethylene and 1-butene which have a number average molecular weight between about 1,500 and 7,500, at least about 30 percent of all polymer chains terminated with ethylvinylidene groups, and ethylene-derived content of not greater than about 50 weight percent, and which form solutions in mineral oil free of polymer aggregates, as determined by light scattering measurements. Lubricating oil additives, particularly dispersants, produced by the functionalization and derivatization of these copolymers have enhanced performance (e.g., improved dispersancy and pour point) in lubricating oil compositions, attributable in part to the combination of properties characterizing the copolymers.
Inventors:
Emmaart, Jacob
Rossi, Albert
Rare, Salvatore
Frederick, Jeffrey William
Kim, Maan Wong
Rossi, Albert
Rare, Salvatore
Frederick, Jeffrey William
Kim, Maan Wong
Application Number:
JP51640794A
Publication Date:
January 14, 2003
Filing Date:
December 14, 1993
Export Citation:
Assignee:
Exxon Chemical Patents Incorporated
International Classes:
C08F8/00; C08F210/16; C10M129/95; C10M133/52; C10M133/56; C10M143/06; C10M157/00; C10M159/16; C10M129/92; C08F210/08; C10N20/00; C10N20/04; C10N30/02; C10N30/04; (IPC1-7): C08F210/16; C10M129/92; C10M129/95; C10M133/56; C10M143/06
Domestic Patent References:
| JP299598A | ||||
| JP62119214A | ||||
| JP63238106A |
Attorney, Agent or Firm:
Motohiro Kurauchi (1 outside)