Title:
分散性粘度調整剤
Document Type and Number:
Japanese Patent JP5575892
Kind Code:
B2
Abstract:
The disclosed invention relates to a composition comprising a grafted polymer. The polymer comprises a backbone with at least one olefin block and at least one vinyl aromatic block. The polymer is grafted with a pendant carbonyl containing group, the grafting being conducted by halogenating the vinyl aromatic carbon of the vinyl aromatic block and then grafting a carboxylic acid or derivative thereof on the halogenated vinyl aromatic carbon in the presence of an activating agent. The carbonyl containing-group is optionally substituted to provide ester, imide and/or amide functionality. The grafted polymer is useful as a dispersant viscosity modifier in lubricating compositions such as engine oils.
Inventors:
A price and David
Burton and William R. S.
サトン and Michael R.
Davies and mark See.
Burton and William R. S.
サトン and Michael R.
Davies and mark See.
Application Number:
JP2012519661A
Publication Date:
August 20, 2014
Filing Date:
July 06, 2010
Export Citation:
Assignee:
ザルブリゾル Condominium ration THE LUBRIZOL CORPORATION
International Classes:
C08F8/46; C08F8/20; C08L15/00; C08L91/00; C10M143/00; C10M143/10; C10M143/12; C10M145/10; C10M149/06; C10M159/12; C10M177/00
Attorney, Agent or Firm:
Shusaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita