TWI672356B
To provide an adhesive sheet of a heat peeling type (heat peelable adhesive sheet) having an adhesive layer into which chemical solution hardly infiltrates. The heat peelable adhesive sheet includes afirst adhesive layer, a base material, and a second adhesive layer in this order. The first adhesive...
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Main Authors | , , |
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Format | Patent |
Language | Chinese |
Published |
21.09.2019
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Subjects | |
Online Access | Get full text |
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Summary: | To provide an adhesive sheet of a heat peeling type (heat peelable adhesive sheet) having an adhesive layer into which chemical solution hardly infiltrates. The heat peelable adhesive sheet includes afirst adhesive layer, a base material, and a second adhesive layer in this order. The first adhesive layer includes an acrylic adhesive including a (meth)acrylic polymer and a thermal-expandable microsphere. The (meth)acrylic polymer includes: a constitutional unit derived from a (meth)alkyl acrylate ester having an alkyl group with two or more carbon atoms; and a constitutional unit derived froma (meth)acrylic monomer having an OH group. In the (meth)acrylic polymer, a molar ratio (C/OH) of carbon (C) in a side chain alkyl group and the OH group is 40-150. |
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Bibliography: | Application Number: TW20165105164 |