Title:
潤滑組成物
Document Type and Number:
Japanese Patent JP6829601
Kind Code:
B2
Abstract:
Lubricating composition for use in the crankcase of an engine comprising: (i) a base oil comprising at least one monoester or a mixture of monoesters, wherein said monoester or mixture of monoesters has a kinematic viscosity at 100° C. of not more than 4 mm2/s, a viscosity index of at least 130 and a Noack evaporation loss of not more than 20 wt %; and (ii) a polymeric viscosity index improvers selected from (a) one or more comb polymers; (b) a poly(meth)acrylate polymer having 1 to 70 mol % of one or more (meth)acrylate structural units represented by formula (1) below (1) wherein R1 is a hydrogen atom or a methyl group, and R2 is a straight chain or branched hydrocarbon group having not less than 16 carbon atoms; (c) styrene-diene hydrogenated copolymers; and (d) mixtures thereof. The lubricating composition of the present invention provides improved fuel economy properties.
Inventors:
Chain
South Bee, Mark Clift
Shoe, butterfly
South Bee, Mark Clift
Shoe, butterfly
Application Number:
JP2016543019A
Publication Date:
February 10, 2021
Filing Date:
December 22, 2014
Export Citation:
Assignee:
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BESLOTEN VENNOOTSHAP
International Classes:
C10M169/04; C10M105/04; C10M105/34; C10M143/12; C10M145/14
Domestic Patent References:
| JP2011508910A | ||||
| JP2010532805A |
Attorney, Agent or Firm:
Shinjiro Ono
Osamu Yamamoto
Toru Miyamae
Motoharu Nakanishi
Yuki Ogasawara
Osamu Yamamoto
Toru Miyamae
Motoharu Nakanishi
Yuki Ogasawara