Adhesive composition, adhesive, adhesive sheet, and double-sided adhesive sheet

By adjusting the molar concentration ratio of the compound in the polyester resin, an environmentally friendly adhesive is formed, and the problems of high environmental load and insufficient adhesiveness in the prior art are solved, thereby achieving efficient adhesive effect.

CN119736056APending Publication Date: 2025-04-01MITSUBISHI CHEM CORP
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Patent Information

Application Number
CN202411769075.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2020-09-30
Filing Date
2021-02-10
Publication Date
2025-04-01

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Abstract

The invention relates to an adhesive composition, an adhesive, an adhesive sheet and a double-sided adhesive sheet. Provided is an adhesive composition which uses a recycled material that is environmentally friendly to the earth, has good adhesive properties with respect to various adherends, and has excellent adhesive properties such as adhesive force and holding power, and which is a polyester resin composition containing a polyester resin (A), the polyester resin (A) contains a structural unit derived from at least one compound (a1) selected from a dimer acid and a dimer glycol, and a structural unit derived from an aromatic compound (a2), and the ratio (X1 / X2) of the molar concentration (X1) of the structural unit derived from the compound (a1) to the molar concentration (X2) of the structural unit derived from the aromatic compound (a2) is greater than 1.0.
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Citation Information

Patent Citations

  • Polyester-based tacky agent

    JP1992328186A

  • Adhesive layer, adhesive tape, and double-sided adhesive tape

    JP2014169419A