Title:
STYRENIC RESIN SHEET
Document Type and Number:
Japanese Patent JP3469982
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a sheet of a styrenic resin compsn. having twist properties and vol. reducing properties.
SOLUTION: A styrenic resin compsn. is extruded in a drawdown ratio of 2-15 by using a T-die to obtain a styrenic resin sheet characterized by that a dimensional change ratio of MD for 2hr at 125°X according to JIS K6734 is -20% or less, a dimension change ratio of TD is ±5% or less, a ratio of the tensile elongation at break of the sheet with a thickness of 0.25mm according to JIS k7127 of MD and that of TD is 1.5 times or more and the DuPont impact strength of the sheet with a thickness of 0.25mm according to JIS K5400 is 10kg.cm or less.
Inventors:
Yasuo Okumura
Hiroyuki Yanai
Ueno Shinji
Hiroyuki Yanai
Ueno Shinji
Application Number:
JP2264096A
Publication Date:
November 25, 2003
Filing Date:
February 08, 1996
Export Citation:
Assignee:
Daicel Chemical Industry Co., Ltd.
International Classes:
B29C48/305; B29D7/00; C08L25/04; B29K25/00; B29L7/00; (IPC1-7): B29C47/14; C08L25/04
Domestic Patent References:
| JP7323456A | ||||
| JP7324152A | ||||
| JP6322149A | ||||
| JP7324149A |
Attorney, Agent or Firm:
Mitsuo Kuwata