POLYPROPYLENE FILM AND POLYPROPYLENE COMPOSITE FILM

Title:

POLYPROPYLENE FILM AND POLYPROPYLENE COMPOSITE FILM

Document Type and Number:

WIPO Patent Application WO/2020/113455

Kind Code:

A1

Abstract:

Disclosed is a polypropylene film formed by cross-linking the following components via radiation, wherein the components comprise: 20 to 50 parts by weight of polypropylene; 20 to 45 parts by weight of a polyolefin elastomer; 30 to 60 parts by weight of polyethylene; 0 to 10 parts by weight of an ethylene-vinyl acetate copolymer; 0.5 to 10 parts by weight of a cross-linking agent; and 0 parts to 1 part by weight of silicon dioxide. Compared with the prior art, the plastic absorption temperature of the polypropylene film is reduced by controlling and adjusting the content of polypropylene, which is a main material, polyolefin elastomer and polyethylene; in addition, by means of radiation modification, molecular chains of various polymers are cross-linked and intertwined, such that the melt strength of the polypropylene film is improved; and when the polypropylene film is subjected to high-temperature plastic absorption molding, the molecular chains are difficult to move, the product thus not easily cracking after plastic absorption, and the surface pattern of the product thus not easily fading or even disappearing.

Inventors:

WU QICHAO (CN)
CHEN HUIXUE (CN)
ZHOU CHUNFA (CN)
HUANG JIANGHAO (CN)
SONG DAIYING (CN)
MENG LIJIE (CN)
PANG YONGTAO (CN)

Application Number:

PCT/CN2018/119326

Publication Date:

June 11, 2020

Filing Date:

December 05, 2018

Export Citation:

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Assignee:

GUANGDONG TIANAN NEW MAT CO LTD (CN)

International Classes:

B32B27/06; C08L23/12; B32B27/08; B32B27/16; B32B33/00; C08K3/36; C08L23/06; C08L23/14; C08L23/16

Foreign References:

CN103724818A	2014-04-16
CN103059422A	2013-04-24
CN103692745A	2014-04-02

Other References: