Title:
PLASTIC FILM, PLASTIC BAG AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/134790
Kind Code:
A1
Abstract:
The present invention provides a plastic film. The plastic film comprises thin film A and thin film B. The thin film A comprises at least one of polylactic acid, polyadipic acid/butylene terephthalate, and PBS polymer. The thin film B comprises a base layer and a coating layer. The coating layer adheres to and surrounds the base layer. The thin film A and the thin film B are laminated and molded. The coating material is polyvinylidene chloride, and the base material is a cellulose film; or the coating material is alumina, and the base material is polylactic acid. In the plastic film of the present invention, at least one of polylactic acid, polyadipic acid/butylene terephthalate, and PBS polymer is compounded with the cellulose film and polyvinylidene chloride into a plastic film. It is found that the plastic film has excellent waterproofing, air-tightness and mechanical properties, is biodegradable, and can be widely used in food packaging bags, and thus overcomes problems that the existing food packaging bags cannot be biodegraded, have poor water resistance and poor air-tightness, and mechanical properties need to be improved.
More Like This:
Inventors:
QIU JIANHAN (CN)
LIANG GUOQIANG (CN)
TANG XIAO (CN)
LIANG GUOQIANG (CN)
TANG XIAO (CN)
Application Number:
PCT/CN2021/124852
Publication Date:
June 30, 2022
Filing Date:
October 20, 2021
Export Citation:
Assignee:
GUANGZHOU ARGION ELECTRIC APPLIANCE CO LTD (CN)
International Classes:
C08L67/02; B32B7/12; B32B9/02; B32B9/04; B32B27/36; B32B33/00; B32B37/10; B32B37/12; B65D65/38; B65D65/42; B65D65/46; C08J5/18; C08J7/04; C08L1/02; C08L67/04
Foreign References:
| CN112694722A | 2021-04-23 | |||
| CN112351944A | 2021-02-09 | |||
| EP3388229A1 | 2018-10-17 | |||
| GB1327145A | 1973-08-15 | |||
| CN107791535A | 2018-03-13 | |||
| CN110435277A | 2019-11-12 | |||
| CN211710240U | 2020-10-20 | |||
| CN101821096A | 2010-09-01 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
Download PDF: