Optical double-sided pressure-sensitive adhesive sheet and preparation method thereof
By using a combination of acrylic polymers, polyfunctional thiols, and photopolymerization initiators in optical double-sided pressure-sensitive adhesive sheets, the cohesiveness and flexibility are adjusted, solving the problems of stress relaxation and insufficient cohesiveness, and improving step absorption and rework performance.
CN122080802APending Publication Date: 2026-05-26GUANGDONG CROWN NEW MATERIALS TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGDONG CROWN NEW MATERIALS TECHNOLOGY CO LTD
- Filing Date
- 2026-03-26
- Publication Date
- 2026-05-26
Smart Images
Figure SMS_1 
Figure SMS_2
Abstract
The invention provides an optical double-sided pressure-sensitive adhesive sheet and a preparation method thereof, the optical double-sided pressure-sensitive adhesive sheet comprises an adhesive layer, the adhesive layer comprises, by weight, 100 parts of an acrylic polymer, 0.01-0.5 part of a multifunctional monomer, 0.01-1 part of multifunctional mercaptan, and 0.1-0.5 part of a photopolymerization initiator; wherein in polymeric monomers of the acrylic polymer, according to the mass percent of the polymeric monomers, the acrylic acid alkoxy alkyl ester accounts for 20-50%, and the hydroxyl-containing monomer accounts for 5-15%. The acrylic polymer contains alkoxy and hydroxyl, has excellent cohesive force, and endows the adhesive sheet with excellent reworking performance. And the adhesive layer contains polyfunctional mercaptan which has a chain transfer effect and can become a cross-linking point, so that the adhesive sheet is endowed with moderate softness, and the adhesive sheet has excellent segment difference absorption performance.
Need to check novelty before this filing date? Find Prior Art