THERMO-SHRINKABLE COVERING MATERIAL 申请(专利号: JP19830132814 专利号:JPS6024923A 主分类号: B29C63/40 申请权利人: UBE KOSAN KK 公开国代码:JP 优先权国家: JP 摘要: PURPOSE:To prevent the occurrence of wrinkle, air bubbles, delamination, etc., by a method in which a specific plastic layer having a specific shearing strength at a high temperature at which maximum contraction is exhibited is laminated with a hot-bonding adhesive layer composed primarily of an elastomer. CONSTITUTION:A bridged plastic layer having a thermal contractibility such as to offset thermal expansion based on linear expansion coefficient when heat- processed, with a thermal contraction rate of 3-30%, is laminated with a hot- bonding adhesive layer composed primarily of an elastomer, having a shearing strength of 0.001-0.05kg/cm<2> at a high temperature at which the bridged plastic layer exhibits a maximum thermal contractibility. Since the protective outer plastic layer is a plastic layer having a low-thermal contraction rate, the thermo- 申请日:1983-07-22 公开公告日: 1985-02-07 分类号: B29C63/40; B29C61/06; B29K105/02; B29L9/00; C09J7/02 发明设计人: FUJIWARA YOUTAROU; KATAOKA HIDETO 申请国代码: JP 优先权: 19830722 JP 13281483 摘要附图: