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Title:
COPOLYMER HAVING HIGH CHEMICAL UNIFORMITY AND USE THEREOF FOR IMPROVING COLD FLOW PROPERTIES OF FUEL OILS
Document Type and Number:
WIPO Patent Application WO/2012/004240
Kind Code:
A3
Abstract:
The invention relates to a copolymer having high chemical uniformity, made of (A) 50 to 30 wt % of ethylene, (B) 50 to 70 wt % of C4- to C24-hydrocarbylester of (meth)acrylic acid, (C) 0 to 5 wt % of (meth)acrylic acid, and (D) 0 to 10 wt % of copolymerizable monomers that can be obtained by the polymerization of a mixture of 80 to 60 wt % of ethylene, 20 to 40 wt % of (meth)acrylic acid, and 0 to 10 wt % of copolymerizable monomers in a back mixing, continuously operating polymerization apparatus, and the subsequent polymeric analogous esterification of the copolymer thus obtained with C4- to C24-hydrocarbinols. The copolymer according to the invention is suitable for improving the cold flow properties of fuel oils, for reducing the lower mixing temperature of cold flow improving additives in fuel oils, and for improving the filterability of fuel oils containing cold flow improving additives.

Inventors:
MAEHLING FRANK-OLAF (DE)
STRITTMATTER JAN (DE)
TROETSCH-SCHALLER IRENE (DE)
GARCIA CASTRO IVETTE (DE)
SCHROERS MICHAEL (DE)
REBHOLZ UWE (DE)
Application Number:
PCT/EP2011/061275
Publication Date:
June 28, 2012
Filing Date:
July 05, 2011
Export Citation:
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Assignee:
BASF SE (DE)
MAEHLING FRANK-OLAF (DE)
STRITTMATTER JAN (DE)
TROETSCH-SCHALLER IRENE (DE)
GARCIA CASTRO IVETTE (DE)
SCHROERS MICHAEL (DE)
REBHOLZ UWE (DE)
International Classes:
C08F220/26; C08F8/14; C08F210/02; C10L10/14; C10M145/14
Domestic Patent References:
WO2008059055A12008-05-22
Foreign References:
DE1923454A11970-11-12
Attorney, Agent or Firm:
BASF SE (67056 Ludwigshafen, DE)
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