THERMALLY RELEASABLE ADHESIVE COMPOSITION, THERMALLY RELEASABLE ADHESIVE ARTICLE, AND USE THEREOF

    公开(公告)号:JPH10316954A

    公开(公告)日:1998-12-02

    申请号:JP13136997

    申请日:1997-05-21

    Abstract: PROBLEM TO BE SOLVED: To provide a thermally releasable adhesive compsn. which does not exhibit cohesive-failure on peeling even when used at high temps., does not leave behind the trace of adhesive, and is free from the problem with defective external appearance, a thermally releasable adhesive article, and the using method thereof. SOLUTION: This compsn. essentially contains a polymer (A) having oxazoline groups and a polymer (B) obtd. by polymerizing a polymerizable monomer component contg. a polymerizable monomer having an oxazoline-reactive group and an alkyl (meth)acrylate. The adhesive article has a adhesive layer formed by applying the compsn. to at least one side of a substrate followed by drying. In the use of the article, it is stuck to an adherend, then heated, and peeled.

    RADIATION-CURABLE TACKY TAPE
    95.
    发明专利

    公开(公告)号:JPH0578629A

    公开(公告)日:1993-03-30

    申请号:JP23835591

    申请日:1991-09-18

    Abstract: PURPOSE:To obtain the subject tape, having a substrate laminated to a tacky agent layer having the surface in which prescribed regions are precured by selective exposure to radiation and further a laminated mold release film, prevented from unnecessary tack, excellent in operating efficiency and useful for fixing wafers, etc. CONSTITUTION:The objective tape is a radiation curing tacky tape provided with a substrate 13 having, e.g. 50-150mum thickness, a tacky agent layer 14, laminated to the surface of the substrate 13 and composed of a photopolymerizable oligomer, etc., curable by exposure to radiation and a mold release film 15 such as a polyester film, laminated to the surface of the tacky agent layer and having about 38mum thickness. Prescribed regions (14a) of the tacky agent layer 14 initiate polymerizing reaction to precure by selective exposure to the radiation and lose tackiness. In contrast, regions (14b) unexposed to the radiation have tackiness.

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