Title:
BIAXIALLY ORIENTED POLYMER FILM, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2017/185533
Kind Code:
A1
Abstract:
A biaxially oriented polymer film and a preparation method therefor. A polymer film comprises a base film layer formed by an olefin polymer, and a superficial film layer formed by multi-polymerized polyolefin. The base film layer is an intermediate layer of the polymer film; a crystal face 110 of a crystal α of the polymer film has orientations in two directions, i.e., the direction of the equator and the direction of the meridian, the long period of lamellar crystals in the direction of the equator being 28-42, the long period of lamellar crystals in the direction of the meridian being 37-46; preferentially, the melting point of the multi-polymerized polyolefin of the superficial film layer is smaller than that of the olefin polymer of the base film layer. The polymer film features properties such as high transparency, high rigidity, tear resistance, low temperature resistance, and a stable size.
Inventors:
DONG XIA (CN)
WANG DUJIN (CN)
WANG FENG (CN)
YANG MINGSHU (CN)
ZHAO YING (CN)
ZHOU YONG (CN)
ZHANG JIANWEI (CN)
ZHANG DEQING (CN)
WANG DUJIN (CN)
WANG FENG (CN)
YANG MINGSHU (CN)
ZHAO YING (CN)
ZHOU YONG (CN)
ZHANG JIANWEI (CN)
ZHANG DEQING (CN)
Application Number:
PCT/CN2016/090007
Publication Date:
November 02, 2017
Filing Date:
July 14, 2016
Export Citation:
Assignee:
INST CHEMISTRY CAS (CN)
International Classes:
B32B27/32; B29C55/14; B32B7/10; B32B27/06; B32B27/18; B32B33/00; B32B37/15
Foreign References:
| CN102190824A | 2011-09-21 | |||
| CN1914275A | 2007-02-14 | |||
| US20050089682A1 | 2005-04-28 |
Attorney, Agent or Firm:
BEIJING YUANZHONG INTELLECTUAL PROPERTY AGENT LTD. (CN)
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