Title:
OPTICALLY CLEAR PRESSURE SENSITIVE ADHESIVE (OCA) AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/007852
Kind Code:
A1
Abstract:
Disclosed in the present invention are an optically clear pressure sensitive adhesive (OCA) and a preparation method therefor. The optical pressure-sensitive adhesive is composed of one or more block copolymers. In the method, reversible addition fragmentation chain transfer emulsion polymerization is used; by controlling monomer types and the feeding sequence, the block copolymers are designed and prepared in a controllable manner; and one or more prepared block copolymers are mixed, and by means of solution film forming, an optically clear pressure sensitive adhesive (OCA) is prepared. The optically clear pressure sensitive adhesive (OCA) prepared in the present invention has the advantages of high stretchability, high transparency and a low haze, can effectively reduce the modulus and improve the peel strength on the basis that the rebound resilience is not influenced, and has large application prospects in the fields of electronic display apparatuses, wearable electronic apparatuses, resistive touch screens, intelligent optical devices, etc.
Inventors:
ZHANG AO (CN)
LUO YINGWU (CN)
LUO YINGWU (CN)
Application Number:
PCT/CN2023/101188
Publication Date:
January 11, 2024
Filing Date:
June 20, 2023
Export Citation:
Assignee:
UNIV ZHEJIANG (CN)
International Classes:
C09J7/10; C09J153/00
Domestic Patent References:
| WO2021197054A1 | 2021-10-07 |
Foreign References:
| CN115260921A | 2022-11-01 | |||
| US20220049040A1 | 2022-02-17 | |||
| CN112126389A | 2020-12-25 | |||
| CN114085632A | 2022-02-25 | |||
| US20210253770A1 | 2021-08-19 |
Attorney, Agent or Firm:
HANGZHOU QIUSHI PATENT OFFICE CO., LTD. (CN)
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