Title:
剪断安定性マルチグレード粘度要件を満たす粘度調整剤型の混合物を使用する全天候型トラクター油圧作動液
Document Type and Number:
Japanese Patent JP2004524432
Kind Code:
A
Abstract:
A composition of the following components: an oil of lubricating viscosity; a polymethacrylate viscosity modifier; an ester of a maleic acid/styrene copolymer; and optionally, an additive package that imparts to the fluid the capacity to meet bench and dynamometer tests specified by an equipment manufacturer, is suitable for use as a functional fluid such as a tractor hydraulic fluid, under a wide variety of climatic conditions.
Inventors:
Gapinsky, Richard E.
Application Number:
JP2002583553A
Publication Date:
August 12, 2004
Filing Date:
April 04, 2002
Export Citation:
Assignee:
THE LUBRIZOL CORPORATION
International Classes:
C10M169/04; C10M145/14; C10M145/16; C10M149/06; C10M149/10; C10M157/00; C10M157/04; C10N20/04; C10N30/02; C10N40/08; (IPC1-7): C10M169/04; C10M145/14; C10M145/16; C10M149/06; C10M149/10
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita