Title:
【発明の名称】グラフト共重合体,および例えば分散剤―粘度改良剤を含有する潤滑剤
Document Type and Number:
Japanese Patent JP2978242
Kind Code:
B2
Abstract:
A graft polymer is prepared by grafting, onto a polymeric hydrocarbon backbone, a free-radical polymerizable vinyl nitrogen monomer, which grafting takes place in the presence of an aliphatic hydrocarbon substituted aromatic solvent capable of free-radical hydrogen atom chain transfer. The modified hydrocarbon based polymer finds utility as an additive for lubricating oils, particularly as dispersant-viscosity improvers for engine oils.
Inventors:
RUSHIANI KAAMEN BUI
RANGE RICHAADO EMU
RANGE RICHAADO EMU
Application Number:
JP50447790A
Publication Date:
November 15, 1999
Filing Date:
March 02, 1990
Export Citation:
Assignee:
RYUUBURIZORU CORP ZA
International Classes:
C08F255/00; C08F279/02; C08F291/00; C10M149/02; C10M149/04; C10M149/06; C10M149/10; C10M151/02; C10N30/02; C10N30/04; C10N40/25; C10N70/00; (IPC1-7): C08F291/00; C10M149/02
Domestic Patent References:
| JP5674166A | ||||
| JP5073992A | ||||
| JP59120644A | ||||
| JP1297413A | ||||
| JP53137292U | ||||
| JP59136394U |
Other References:
【文献】米国特許2970129(US,A)
Attorney, Agent or Firm:
Shusaku Yamamoto