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2. (US20140018460) COMPOSITIONS FOR IMPROVING POLYESTERS

Application Number: 14004171 Application Date: 12.03.2012
Publication Number: 20140018460 Publication Date: 16.01.2014
Publication Kind : A1
Prior PCT appl.: Application Number:PCTEP1254249 ; Publication Number: Click to see the data
IPC:
C08G 63/91
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
63
Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
91
Polymers modified by chemical after-treatment
CPC:
C08G 63/916
Applicants: Rome Daniel
NEXAM CHEMICAL AB
Persson David
Rosenberg Jan-Erik
Momcilovic Dane
Inventors: Rome Daniel
Persson David
Rosenberg Jan-Erik
Momcilovic Dane
Priority Data: 11157759.9 10.03.2011 EP
Title: (EN) COMPOSITIONS FOR IMPROVING POLYESTERS
Abstract:
(EN)

A method for altering the melt characteristics of a polyester, such as the melt strength, the method comprising the step of melt mixing the polyester, with a tetracarboxylic dianhydride; across-linker and chain extender comprising at least two groups being able to react with a carboxy group and a phenolic hydroxyl group; and a poly functional compound comprising at least two groups selected from the group consisting of non-sterically hindered phenolic hydroxyl groups, and carboxy groups.


Also published as:
CN103429636IN7977/DELNP/2013JP2014507543