Title:
スチレン系樹脂シート及び成形体
Document Type and Number:
Japanese Patent JP3662025
Kind Code:
B2
Abstract:
The present invention relates to a styrene type resin sheet which comprises a styrene type resin composition containing from 3 to 15 parts by weight of a terpene type resin and 100 parts by weight of a rubber-modified styrene type resin which contains (i) from 85 to 92 % by weight of a continuous phase of a copolymer comprising from 45 to 60 % by weight of a styrene type monomer unit, from 5 to 15 % by weight of a C2 to C4-alkyl acrylic ester monomer unit and/or a C2 to C4-alkyl methacrylic ester monomer unit, and from 25 to 50 % by weight of a methyl methacrylate monomer unit and (ii) from 8 to 15 % by weight of dispersed particles of rubber elastomer having an average diameter of from 0.4 to 0.9 mu m and comprising a styrene-butadiene diblock copolymer having from 25 to 40 % by weight of styrene, which has a thickness of from 0.10 to 2.5 mm, and which has a heat shrinkage percentage of 20 % or less, and molded articles obtained therefrom. The sheets of the present invention have good strength, stiffness and transparency and avoid "haze development" when secondarily processed by heating.
Inventors:
Kazuhiko Masa
Toyama Mitsutoshi
Toyama Mitsutoshi
Application Number:
JP50792796A
Publication Date:
June 22, 2005
Filing Date:
April 04, 1995
Export Citation:
Assignee:
Asahi Kasei Chemicals Corporation
International Classes:
C08J5/18; (IPC1-7): C08J5/18
Domestic Patent References:
| JP5051503A | ||||
| JP5171001A | ||||
| JP6145369A | ||||
| JP6145443A | ||||
| JP6145445A |
Attorney, Agent or Firm:
Nozaki Satoya