Title:
HOT MELT ADHESIVE FILM FOR BONDING METAL AND PVC, AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/130722
Kind Code:
A1
Abstract:
The present invention relates to a hot melt adhesive film for bonding a metal and PVC, and a preparation method therefor. The hot melt adhesive film comprises a first adhesive layer for bonding with PVC, a second adhesive layer for bonding with a metal, and a transition adhesive layer disposed between the first adhesive layer and the second adhesive layer, wherein the raw material formula of the first adhesive layer comprises a polyethylene-acrylate-maleic anhydride terpolymer and a maleic anhydride grafted C5/C9 copolymer resin. In the present invention, the maleic anhydride grafted C5/C9 copolymer resin with a high grafting rate is introduced into the first adhesive layer, such that the peel strength between the first adhesive layer and PVC is improved; moreover, the maleic anhydride grafted C5/C9 copolymer resin and the polyethylene-acrylate-maleic anhydride terpolymer have a good synergistic effect, such that the first adhesive layer forms a firm barrier, which prevents a plasticizer in PVC from migrating to the first adhesive layer and greatly improves the plasticizer resisting effect of the hot melt adhesive film. After long-term use, the peel strength of a composite plate of a metal and PVC bonded by the hot melt adhesive film is basically not attenuated.
Inventors:
HE MIN (CN)
LI ZHONGREN (CN)
XIE HONGDE (CN)
ZHENG CAI (CN)
LI ZHONGREN (CN)
XIE HONGDE (CN)
ZHENG CAI (CN)
Application Number:
PCT/CN2022/112035
Publication Date:
July 13, 2023
Filing Date:
August 12, 2022
Export Citation:
Assignee:
JIANGSU CANLON BUILDING MAT CO LTD (CN)
International Classes:
C09J7/10; C09J7/30; C09J11/08; C09J123/08; C09J151/06; C09J153/00
Domestic Patent References:
| WO1996025453A1 | 1996-08-22 |
Foreign References:
| CN114479682A | 2022-05-13 | |||
| CN109207073A | 2019-01-15 | |||
| CN103694909A | 2014-04-02 | |||
| CN1441022A | 2003-09-10 | |||
| CN109207079A | 2019-01-15 | |||
| DE68906052T2 | 1993-10-28 |
Other References:
CAIMIN FENG, LIU HONG-BO, HUANG JIAN-GUANG, LIANG MIN-Y: "Graft Modification of Petroleum Resin by MAH and Its Application in Hot Melt Adhesive", JOURNAL OF SHUNDE POLYTECHNIC, vol. 9, no. 4, 30 October 2011 (2011-10-30), pages 10 - 12, XP093077759, ISSN: 1672-6138, DOI: 10.3969/j.issn.1672-6138.2011.04.004
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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