ACRYLIC BLOCK COPOLYMER AND THERMOPLASTIC RESIN COMPOSITION

Title:

ACRYLIC BLOCK COPOLYMER AND THERMOPLASTIC RESIN COMPOSITION

Document Type and Number:

WIPO Patent Application WO/2004/013192

Kind Code:

A1

Abstract:

A novel acrylic block copolymer that exhibits enhanced flexibility, excelling in mechanical strength, moldability, oil resistance, thermal stability, thermal decomposition resistance, weather resistance and compression set, and exhibits enhanced reactivity; a composition comprising the acrylic block copolymer; and a seal product and an automobile, electrical or electronic part therefrom. In particular, an acrylic block copolymer comprising a methacrylic polymer block (a) and an acrylic polymer block (b) characterized in that at least one of the polymer blocks in its main chain has at least one acid anhydride group (c) represented by the general formula (1): (1) wherein R¹s represent hydrogen or methyl and may be identical with or different from each other; n is an integer of 0 to 3; and m is an integer of 0 or 1.

Inventors:

TANIGUCHI AKIO (JP)
KOKUBO TADASHI (JP)
TAKESADA KENTARO (JP)
KONDO KOZO (JP)
CHIBA TAKESHI (JP)
KUMASAKI ATSUSHI (JP)
KANEDA YUTAKA (JP)

Application Number:

PCT/JP2003/009721

Publication Date:

February 12, 2004

Filing Date:

July 31, 2003

Export Citation:

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Assignee:

KANEKA CORP (JP)
TANIGUCHI AKIO (JP)
KOKUBO TADASHI (JP)
TAKESADA KENTARO (JP)
KONDO KOZO (JP)
CHIBA TAKESHI (JP)
KUMASAKI ATSUSHI (JP)
KANEDA YUTAKA (JP)

International Classes:

C08F8/48; C08F293/00; C08F297/02; C08L53/00; C09J153/00; (IPC1-7): C08F8/48; C08F293/00

Foreign References:

US5218053A	1993-06-08
JP2002293835A	2002-10-09
JP2002284816A	2002-10-03
JPH09277464A	1997-10-28
JPH03205407A	1991-09-06
US5314962A	1994-05-24

Other References: