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)
ROTH MICHAEL (DE)
PFAENDNER RUDOLF (DE)
Application Number:
PCT/EP2004/050063
Publication Date:
January 06, 2005
Filing Date:
February 02, 2004
Export Citation:
Assignee:
CIBA SC HOLDING AG (CH)
FINK JOCHEN (DE)
ROTH MICHAEL (DE)
PFAENDNER RUDOLF (DE)
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:
WO1999046261A1 | 1999-09-16 | |||
WO2002048109A2 | 2002-06-20 | |||
WO2000014134A1 | 2000-03-16 | |||
WO1998013392A1 | 1998-04-02 | |||
WO1999003894A1 | 1999-01-28 | |||
WO2002100831A1 | 2002-12-19 | |||
WO2000007981A1 | 2000-02-17 |
Foreign References:
US5721320A | 1998-02-24 | |||
US3390206A | 1968-06-25 | |||
US4581429A | 1986-04-08 | |||
EP0135280A2 | 1985-03-27 |
Download PDF:
Previous Patent: COATING MATERIALS, METHOD FOR THEIR PRODUCTION AND USE OF SAID MATERIALS
Next Patent: BLOCK COPOLYMERS
Next Patent: BLOCK COPOLYMERS