Title:
高-及び低分子量ポリマー添加剤混合物を用いる潤滑油の低温流動性の改良法
Document Type and Number:
Japanese Patent JP4391014
Kind Code:
B2
Abstract:
A method for improving the low temperature fluidity of lubricating oil compositions based on addition to lubricating oils of a mixture of selected high molecular weight and low molecular weight alkyl (meth)acrylate copolymers is disclosed. Combinations of low molecular weight alkyl (meth)acrylate polymers containing zero to 25 weight percent (C16-C24)alkyl (meth)acrylate with high molecular weight alkyl (meth)acrylate polymers containing 25 to 70 weight percent (C16-C24)alkyl (meth)acrylate are especially effective at satisfying different aspects of low temperature fluidity properties simultaneously for a broad range of base oils.
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Inventors:
Bernard George Kinker
Thomas Andrew MacGregor
Joanne Marie Soutic
Thomas Andrew MacGregor
Joanne Marie Soutic
Application Number:
JP2000507763A
Publication Date:
December 24, 2009
Filing Date:
August 20, 1998
Export Citation:
Assignee:
Evonik RohMax Additives GmbH
International Classes:
C10M157/00; C10M145/14; C10M169/04; C10N20/02; C10N20/04; C10N30/02
Domestic Patent References:
| JP60110790A | ||||
| JP54070305A | ||||
| JP4277597A | ||||
| JP62212497A | ||||
| JP62257986A | ||||
| JP10237135A | ||||
| JP8092584A |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard