Title:
潤滑油添加剤およびグラフト重合体
Document Type and Number:
Japanese Patent JP4142121
Kind Code:
B2
Abstract:
Lubricating oil additive contains an amt. of graft polymers with a VI improving action. The graft polymers (PFP) are made up of polyalkylmethacrylate macromonomers (A) in amts. of 10-90 wt.%, which are copolymerised with alkyl(meth)acrylic acid esters (AMA) contg. 6-30C alkyls in amt. of 0-90 wt.% and with non-functionalised comonomers (B) chosen from alkyl(meth)acrylic acid esters contg. 1-5C alkyls, styrene, alkylstyrenes contg. 1-4C alkyls, and 2-12C fatty acid vinyl esters in amts. of 0-60 wt.%, and also with functionalised comonomers (C) chosen from functionalised (meth)acrylic acid esters and amides and vinyl heterocycles in amts. of 0-40 wt.%. The sum of the copolymerised monomers is 10-90 wt.% in a carrier medium (TM). The graft polymers are also claimed.
Inventors:
Clemens Austra
Horst penevis
Horst penevis
Application Number:
JP12056996A
Publication Date:
August 27, 2008
Filing Date:
May 15, 1996
Export Citation:
Assignee:
Evonik Roehm GmbH
International Classes:
C08F290/04; C08F290/00; C10M145/14; C10M149/00; C10M149/06; C10M149/10; C10N30/02; C10N30/04
Domestic Patent References:
| JP2245008A | ||||
| JP62220593A | ||||
| JP5186517A |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel
Hiroshi Sugimoto
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel
Hiroshi Sugimoto