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Title:
ANTI-SCRATCH TRANSPARENT THIN FILM, SCRATCH-RESISTANT SURFACE ARTICLE AND COMPOSITE SHEET
Document Type and Number:
WIPO Patent Application WO/2019/091305
Kind Code:
A1
Abstract:
Disclosed are an anti-scratch transparent thin film, a scratch-resistant surface article and a composite sheet. The anti-scratch transparent thin film comprises a PMMA layer located on an upper layer and a PET layer provided on the lower surface of the PMMA layer. The PET layer is selected from PETG (non-crystalline copolymerized PET), APET (amorphous PET) or CPET (crystalline PET) layers. The thickness of the PMMA layer accounts for 5%-40% of the total thickness, and the thickness of the PET layer accounts for 20%-95% of the total thickness. A PMMA layer, a PC layer, or a PC layer and a PMMA layer can further be provided on the lower surface of the PET layer. The use of a PMMA layer as an outer surface layer of surface articles or packaging materials provides good scratch resistance, better weathering resistance, and better temperature resistance, and at the same time, using a PET layer to directly composite with a PMMA layer also overcomes the defects of the fragility and high cost of the PMMA layer itself.

Inventors:
LIAO, Hongchuan (Room 801, No. 70 Lane 1288, South Lianhua Road, Minhang District, Shanghai 0, 201100, CN)
Application Number:
CN2018/112835
Publication Date:
May 16, 2019
Filing Date:
October 31, 2018
Export Citation:
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Assignee:
LIAO, Hongchuan (Room 801, No. 70 Lane 1288, South Lianhua Road, Minhang District, Shanghai 0, 201100, CN)
International Classes:
B32B27/08; B32B7/02; B32B27/36
Foreign References:
CN101314266A2008-12-03
CN107719943A2018-02-23
CN207417537U2018-05-29
CN102774107A2012-11-14
US20020051290A12002-05-02
EP2143557A12010-01-13
Attorney, Agent or Firm:
SHANGHAI HANGSOME INTELLECTUAL PROPERTY LTD (Room 307 No.56 Lane 3828 Yindu Road Min Hang District, Shanghai 8, 201108, CN)
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