| 摘要 |
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 deg.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. |
