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    • 4. 发明申请
    • PRESSURE-SENSITIVE ADHESIVE COMPOSITION
    • 压敏粘合剂组合物
    • US20120232226A1
    • 2012-09-13
    • US13508641
    • 2010-11-08
    • Hitoshi TakahiraSatomi Yoshie
    • Hitoshi TakahiraSatomi Yoshie
    • C08L67/02
    • C09J167/08C08L67/08C08L2666/18
    • The present invention has an object to provide a pressure-sensitive adhesive composition that provides a polyester-based pressure-sensitive adhesive capable of realizing both of heat resistance and adhesive force at high levels and a pressure-sensitive adhesive sheet having a polyester-based pressure-sensitive adhesive. The pressure-sensitive adhesive composition provided by the present invention contains a polyester resin A with Mw of 4×104 to 12×104 and a polyester resin B with Mw of 0.3×104 to 1×104. The ratio (mA:mB) of the number of moles mA and mB of the polyester resins A and B is 1:0.35 to 1:1.4. The pressure-sensitive adhesive composition further contains a crosslinking agent, and has a gel fraction after crosslinking of 30 to 65%.
    • 本发明的目的是提供一种压敏粘合剂组合物,其提供能够实现高水平的耐热性和粘合力的聚酯类压敏粘合剂和具有聚酯基压力的压敏粘合片 敏感粘合剂。 由本发明提供的压敏粘合剂组合物含有Mw为4×10 4〜12×10 4的聚酯树脂A和Mw为0.3×10 4〜1×10 4的聚酯树脂B. 聚酯树脂A和B的摩尔数mA和mB的比(mA:mB)为1:0.33至1:1.4。 压敏粘合剂组合物还含有交联剂,交联后的凝胶率为30〜65%。