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Patent Searching and Data


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.
Application Number:
JP2012519661A
Publication Date:
August 20, 2014
Filing Date:
July 06, 2010
Export Citation:
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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