Title:
RUBBER-MODIFIED AROMATIC VINYL-BASED RESIN COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2011/132795
Kind Code:
A1
Abstract:
Disclosed is an aromatic vinyl-based resin composition which uses natural rubber as the rubber component, has excellent impact resistance and excellent surface appearance of molded products, and has a low environmental impact. The disclosed rubber-modified aromatic vinyl-based resin composition contains at least one type of graft copolymer (A) obtained by polymerizing in the presence of a rubber polymer (a) a vinyl-based monomer (b) formed having an aromatic vinyl compound and, if desired, other monomers capable of copolymerization with said aromatic vinyl compound, wherein the rubber polymer (a) contained in said composition contains a deproteinized natural rubber (a1) with nitrogen content of no more than 0.1 mass%, and a synthetic rubber (a2). The rubber polymer (a) optimally comprises component (a1) at 3-90 mass% and component (a2) at 10-97 mass%. The composition also optionally contains a (co-)polymer (B) of vinyl-based monomers.
Inventors:
ISHIKAWA KOJI (JP)
KAWAHARA SEIICHI (JP)
YAMAMOTO YOSHIMASA (JP)
KAWAHARA SEIICHI (JP)
YAMAMOTO YOSHIMASA (JP)
Application Number:
PCT/JP2011/060068
Publication Date:
October 27, 2011
Filing Date:
April 25, 2011
Export Citation:
Assignee:
TECHNO POLYMER CO LTD (JP)
NAT UNIV CORP NAGAOKA UNIV TEC (JP)
ISHIKAWA KOJI (JP)
KAWAHARA SEIICHI (JP)
YAMAMOTO YOSHIMASA (JP)
NAT UNIV CORP NAGAOKA UNIV TEC (JP)
ISHIKAWA KOJI (JP)
KAWAHARA SEIICHI (JP)
YAMAMOTO YOSHIMASA (JP)
International Classes:
C08F291/00; C08L25/00; C08L51/04
Foreign References:
| JPS5728178A | 1982-02-15 | |||
| JPS4632748B1 | 1971-09-23 | |||
| JPS4525381B1 | ||||
| JPH06329702A | 1994-11-29 | |||
| JP2004182906A | 2004-07-02 | |||
| JP2004182905A | 2004-07-02 | |||
| JP2008214481A | 2008-09-18 | |||
| JP2004155884A | 2004-06-03 |
Attorney, Agent or Firm:
IDE Masatake et al. (JP)
Masatake Ide (JP)
Masatake Ide (JP)
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Claims: