Global Patent Index - EP 0340302 A4

EP 0340302 A4 19891004 - LUBRICATING OIL COMPOSITION FOR GEAR.

Title (en)

LUBRICATING OIL COMPOSITION FOR GEAR.

Title (de)

SCHMIERÖLZUSAMMENSETZUNG FÜR GETRIEBE.

Title (fr)

COMPOSITION D'UNE HUILE LUBRIFIANTE POUR ENGRENAGES.

Publication

EP 0340302 A4 19891004 (EN)

Application

EP 87906604 A 19871009

Priority

  • CA 545362 A 19870826
  • JP 8700763 W 19871009

Abstract (en)

[origin: EP0340302A1] A lubricating oil composition for gear which contains as a base oil polyoxyalkylene glycol ester obtained by reacting a polymer prepared by ring-opening polymerisation or ring-opening copolymerization of one or more members selected from among alkylene oxides having 2 to 4 carbon atoms with a carboxylic acid having 1 to 10 carbon atoms. This lubricating oil composition has remarkably good oxidation stability and abrasion resistance at high temperatures and flowability at low temperatures.

IPC 1-7

C10M 105/40; C10M 107/34; C10N 40/04

IPC 8 full level

C10M 107/34 (2006.01); C10M 111/04 (2006.01); C10N 40/04 (2006.01)

CPC (source: EP)

C10M 105/36 (2013.01); C10M 105/38 (2013.01); C10M 107/34 (2013.01); C10M 111/04 (2013.01); C10M 2207/281 (2013.01); C10M 2207/282 (2013.01); C10M 2207/2825 (2013.01); C10M 2207/283 (2013.01); C10M 2207/2835 (2013.01); C10M 2207/2855 (2013.01); C10M 2207/286 (2013.01); C10M 2207/34 (2013.01); C10M 2209/104 (2013.01); C10M 2209/105 (2013.01); C10M 2209/106 (2013.01); C10M 2209/107 (2013.01); C10M 2215/064 (2013.01); C10M 2223/041 (2013.01); C10N 2020/01 (2020.05); C10N 2040/02 (2013.01); C10N 2040/04 (2013.01); C10N 2040/042 (2020.05); C10N 2040/044 (2020.05); C10N 2040/046 (2020.05); C10N 2040/08 (2013.01)

Citation (search report)

  • [X] DE 2006831 A1 19700903
  • [A] MECHANICAL ENGINEERING, vol. 73, June 1951, pages 469-476; C.H. SWEATT et al.: "Some industrial experiences with synthetic lubricants"
  • See references of WO 8903418A1

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0340302 A1 19891108; EP 0340302 A4 19891004; CA 1303600 C 19920616; JP S62241996 A 19871022; WO 8903418 A1 19890420

DOCDB simple family (application)

EP 87906604 A 19871009; CA 545362 A 19870826; JP 8556086 A 19860414; JP 8700763 W 19871009