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Title:
METHOD OF PRODUCING AND USING MATERIALS WHICH ARE REINFORCED AGAINST IMPACT AND WHICH CONTAIN BLOCK COPOLYMERS THAT ARE OBTAINED BY MEANS OF CONTROLLED RADICAL POLYMERISATION IN THE PRESENCE OF NITROXIDES
Document Type and Number:
WIPO Patent Application WO2003062293
Kind Code:
A8
Abstract:
The invention relates to the production and use of block copolymers which are obtained by means of controlled radical polymerisation in the presence of nitroxides for the purpose of reinforcing fragile polymer matrices. The invention offers advantages such as (i) simplicity of copolymer synthesis and use and (ii) fine dispersion of the copolymer molecules in the fragile matrix, which ensures both the transparency of the material and high reinforcement against impact. More specifically, the invention relates to the radical synthesis of block copolymers comprising at least three blocks, which include one block having a glass transition temperature of less than 0 DEG C and a thermoplastic end block having a glass transition temperature of more than 0 DEG C, thereby guaranteeing compatibility with the fragile matrix to be reinforced against impact.

Inventors:
RUZETTE ANNE-VALERIE (FR)
CHAUVIN FLORENCE (US)
GUERRET OLIVIER (FR)
BERTIN DENIS (FR)
VUILLEMIN BRUNO (FR)
LEIBLER LUDWIK (FR)
GERARD PIERRE (FR)
EDERLE YANNICK (FR)
Application Number:
PCT/FR2003/000186
Publication Date:
April 28, 2005
Filing Date:
January 21, 2003
Export Citation:
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Assignee:
ATOFINA (FR)
RUZETTE ANNE-VALERIE (FR)
CHAUVIN FLORENCE (US)
GUERRET OLIVIER (FR)
BERTIN DENIS (FR)
VUILLEMIN BRUNO (FR)
LEIBLER LUDWIK (FR)
GERARD PIERRE (FR)
EDERLE YANNICK (FR)
International Classes:
C08F293/00; C08F297/02; C08L53/00; C08L101/00; (IPC1-7): C08F293/00; C08L53/00; C08L101/00
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