Title:
【発明の名称】選択的に水素化されたポリマーからの分散剤および分散剤粘度指数向上剤
Document Type and Number:
Japanese Patent JPH11506978
Kind Code:
A
Abstract:
The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated and functionalized. The dispersant substances include compositions including a copolymer of two different conjugated dienes, a copolymer of a p-alkylstyrene and a conjugated diene, or a homopolymer of a conjugated diene. The polymers are selectively hydrogenated to produce polymers which have highly controlled amounts of unsaturation, permitting highly selective functionalization. Also provided are lubricant fluids, such as mineral and synthetic oils, which have been modified in their dispersancy and/or viscometric properties by means of the dispersant substances of the invention. Also provided are methods of modifying the dispersancy and/or viscometric properties of lubricating fluids such as mineral and synthetic lubricating oils. The dispersant substances may also include a carrier fluid to provide dispersant concentrates.
Inventors:
Brandes, Ellen Bernice
Loveless, Frederick Charles
Loveless, Frederick Charles
Application Number:
JP50055097A
Publication Date:
June 22, 1999
Filing Date:
May 13, 1996
Export Citation:
Assignee:
Mobile Oil Corporation
International Classes:
C07C15/40; C08F8/00; C08F8/04; C08F8/08; C08F236/04; C08F297/02; C09K3/00; C10L1/16; C10L1/195; C10L1/196; C10L1/198; C10L1/20; C09K23/52; C10L1/236; C10L1/238; C10L1/24; C10L10/00; C10L10/18; C10M143/08; C10M143/12; C10M145/00; C10M145/02; C10M147/00; C10M149/06; C10M149/10; C10M151/02; C10L1/18; C10L1/22; C10N30/02; C10N30/04; C10N40/04; C10N40/08; (IPC1-7): B01F17/52; C08F8/04; C08F236/04; C09K3/00; C10L1/16; C10M143/08; C10M145/02; C10M147/00; C10M151/02
Attorney, Agent or Firm:
Kazuo Shamoto (5 outside)