Title:
【発明の名称】ポリアルキレン基とスクシン基とを交互に有する新規なポリマー系分散剤
Document Type and Number:
Japanese Patent JP3174305
Kind Code:
B2
Abstract:
A process for preparing an oligomeric copolymer of an unsaturated acidic reactant and a high molecular weight olefin having a sufficient number of carbon atoms such that the resulting copolymer is soluble in lubricating oil and wherein at least 20 weight percent of the total olefin comprises an alkylvinylidene isomer, which process comprises reacting the high molecular weight olefin with the unsaturated acidic reactant in the presence of a free radical initiator and a solvent selected from: (a) polyisobutenyl succinic anhydride (PIBSA), (b) polyPIBSA, or (c) a mixture comprising polyisobutene and a copolymer prepared by reacting a high molecular weight olefin, wherein at least 20 weight percent of the total olefin comprises an alkylvinylidene isomer, and an unsaturated acidic reactant in the presence of a free radical initiator.
Inventors:
Harrison, James Jay.
Application Number:
JP51056289A
Publication Date:
June 11, 2001
Filing Date:
September 29, 1989
Export Citation:
Assignee:
Chevron Research and Technology Company
International Classes:
C07C55/00; C07C55/02; C07C57/13; C07C69/593; C07F5/02; C08F8/00; C08F8/30; C08F8/46; C08F210/00; C10L1/14; C07D307/60; C10L1/234; C10L1/236; C10L1/238; C10L1/24; C10L10/08; C10L10/18; C10M129/93; C10M129/95; C10M133/52; C10M133/56; C10M145/16; C10M149/06; C10L1/16; C10L1/18; C10L1/22; C10L1/26; C10L1/30; C10N20/04; C10N30/04; F02F7/00; (IPC1-7): C07D307/60; C07F5/02; C08F8/30; C10L1/22; C10M129/93; C10M133/56; C10M145/16; C10M149/06
Domestic Patent References:
| JP63150261A | ||||
| JP5893706A |
Other References:
【文献】英国特許2081722(GB,A)
【文献】英国特許2081274(GB,A)
【文献】英国特許2081274(GB,A)
Attorney, Agent or Firm:
Akira Asamura (1 person outside)