Invention Application
- Patent Title: THERMALLY DE-BONDABLE ADHESIVES
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Application No.: US18721284Application Date: 2022-12-01
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Publication No.: US20250059408A1Publication Date: 2025-02-20
- Inventor: Jian-Kuan Wu , Shujun J. Wang , Aizoh Sakurai
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US MN St. Paul
- Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee Address: US MN St. Paul
- International Application: PCT/IB2022/061665 WO 20221201
- Main IPC: C09J7/38
- IPC: C09J7/38 ; C09J5/06 ; C09J11/06

Abstract:
Thermally de-bondable adhesives are formed from curable compositions that have a two-stage curing mechanism. The first stage of curing forms a pressure sensitive adhesive and the second stage of curing, reduces the adhesion of the adhesive. The curable composition includes a curable composition and a thermally de-bonding composition. The curable composition includes a first alkyl (meth)acrylate monomer with 4-12 carbon atoms, a second hydroxyl-functional (meth)acrylate monomer, a crosslinker, and an initiator. The thermally de-bonding composition includes a blocked multi-functional isocyanate, and a metal salt catalyst. The Peel Adhesion of the cured adhesive upon heating to at least 180° C. for 1 hour is reduced by at least 15%.
Information query
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