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Title:
COMB COPOLYMERS WITH DEFINED SIDE CHAINS AND PROCESS FOR THEIR MANUFACTURE
Document Type and Number:
WIPO Patent Application WO2004069887
Kind Code:
A3
Abstract:
The present invention relates to the modification of copolymers, in particular of grafted copolymers into comb copolymers. The modification comprises the steps (i) of controlled radical polymerization of a polymer or copolymer bearing a epoxide group at one end resulting from the initiation step, and (ii) a heating step of the polymer prepared under (i) and a copolymer bearing a functional group either in the backbone or attached to a side chain, which is able to react with the epxide group. The result is a comb copolymer with well controlled chain length of the grafted side arms expressed for example by a low polydispersity.

Inventors:
FINK JOCHEN (DE)
ROTH MICHAEL (DE)
PFAENDNER RUDOLF (DE)
Application Number:
PCT/EP2004/050063
Publication Date:
January 06, 2005
Filing Date:
February 02, 2004
Export Citation:
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Assignee:
CIBA SC HOLDING AG (CH)
FINK JOCHEN (DE)
ROTH MICHAEL (DE)
PFAENDNER RUDOLF (DE)
International Classes:
C08F2/38; C08F255/02; C08F257/02; C08F265/00; C08F285/00; C08F287/00; C08F291/00; C08F293/00; (IPC1-7): C08F291/00; C08F2/38; C08F8/00; C08F265/00; C08F255/00; C08F255/02; C08F257/02; C08F287/00; C08F285/00; C08F293/00
Domestic Patent References:
WO1999046261A11999-09-16
WO2002048109A22002-06-20
WO2000014134A12000-03-16
WO1998013392A11998-04-02
WO1999003894A11999-01-28
WO2002100831A12002-12-19
WO2000007981A12000-02-17
Foreign References:
US5721320A1998-02-24
US3390206A1968-06-25
US4581429A1986-04-08
EP0135280A21985-03-27
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