Title:
SELF-REPAIRING TPU PROTECTIVE FILM FOR 3D CURVED SCREEN AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/213113
Kind Code:
A1
Abstract:
A self-repairing TPU protective film for a 3D curved screen, comprising a release film A, an optical-grade self-repairing coating layer, an optical-grade hard TPU resin film layer, an optical-grade high-viscosity acrylic pressure-sensitive adhesive layer, and a release film B attached from top to bottom. The optical-grade self-repairing coating layer is formed by coating an optical-grade self-repairing coating, and the composition of the optical-grade self-repairing coating comprises 100 parts by weight of a self-repairing resin, 60 to 150 parts by weight of a first solvent, 1 to 10 parts by weight of a slip assistant, and 30 to 100 parts by weight of a first curing agent. The self-repairing TPU protective film for a 3D curved screen has good conformability to a curved screen, has no warping, has a smooth surface, and is foldable and scratch resistant.
Inventors:
XUE MENG (CN)
DING JINGDE (CN)
ZHUANG YONGJIAN (CN)
ZHU LIPING (CN)
DING JINGDE (CN)
ZHUANG YONGJIAN (CN)
ZHU LIPING (CN)
Application Number:
PCT/CN2021/082268
Publication Date:
October 28, 2021
Filing Date:
March 23, 2021
Export Citation:
Assignee:
GUANGDONG BANGGU FILM COATING INNOVATION ACAD CO LTD (CN)
International Classes:
C09J7/25; C09D175/04; C09J7/38; C09J11/06; C09J133/08
Foreign References:
| CN111363488A | 2020-07-03 | |||
| CN107936860A | 2018-04-20 | |||
| CN110607147A | 2019-12-24 | |||
| CN108690516A | 2018-10-23 | |||
| CN109504298A | 2019-03-22 | |||
| US20180194975A1 | 2018-07-12 | |||
| CN108116020A | 2018-06-05 | |||
| CN106543915A | 2017-03-29 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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