Title:
【発明の名称】粘度示数改善剤またはゲル化剤としての実質的に線状のエチレン/アルファ―オレフィンポリマー
Document Type and Number:
Japanese Patent JP2000517348
Kind Code:
A
Abstract:
Substantially linear ethylene polymers, such as ethylene/octene copolymers and ethylene/propylene/diene modified polymers, when added in a viscosity modifying amount to an oleaginous material, such as a lubricating oil, provides the material with a viscosity index that exceeds that of the material alone. The substantially linear ethylene polymers, prepared by constrained geometry catalysis, may be grafted with one or more unsaturated organic compounds, such as maleic anhydride, that contain ethylenic unsaturation. The grafted polymer may be further functionalized by reactions with, for example, an alcohol or an amine compound. The substantially linear ethylene polymers, when subjected to shearing action either before or after addition to an oleaginous material, improve shear stability of the oleaginous material. The substantially li near ethylene polymers, whether grafted, grafted and further reacted or not, also work as a thickening agent for compositions such as those used in greases, cable filling coumpounds and cosmetics. In addition, the substantially linear ethylene polymers provide effective results when blended with other components of conventional oleaginous material compositions.
Inventors:
Hughes, Morgan, Mark
Ruffner, Michael, Kenneth
McGeek, Richard, Heath
Sickrum, willis, charles
Miller, Rufus, Gee.
Ruffner, Michael, Kenneth
McGeek, Richard, Heath
Sickrum, willis, charles
Miller, Rufus, Gee.
Application Number:
JP53174497A
Publication Date:
December 26, 2000
Filing Date:
November 01, 1996
Export Citation:
Assignee:
DuPont Dow Elastomers LLC
E.I.DU PONT DE NEMOURS AND COMPANY
The Dow Chemical Company
E.I.DU PONT DE NEMOURS AND COMPANY
The Dow Chemical Company
International Classes:
A61K47/32; A61K8/72; A61K8/81; A61K8/91; A61Q19/00; C08L83/06; C09K3/00; C09K8/32; C10L1/14; C10L1/16; C10L1/195; C10L1/236; C10M119/00; C10M119/02; C10M119/06; C10M119/24; C10M143/02; C10M145/02; C10M145/10; C10M149/02; C10M149/06; C10M149/10; C10M157/00; C10M157/04; C10M171/04; C10L1/18; C10L1/22; C10L1/30; C10N20/00; C10N20/02; C10N30/02; C10N40/32; C10N50/10; (IPC1-7): C10M143/02; A61K7/00; A61K47/32; C10M145/02; C10M149/02
Attorney, Agent or Firm:
Yoshikazu Tani (3 others)