Title:
WATER-SOLUBLE SHOPPING BAG AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/041262
Kind Code:
A1
Abstract:
The present invention relates to a water-soluble shopping bag and a preparation method therefor. The water-soluble shopping bag consists of the following components according to the following parts by weight: 100 parts of polyvinyl alcohol; 8-20 parts of a composite plasticizer; 10-30 parts of a polysaccharide derivative; 1-5 parts of a processing aid; 0.1-0.5 parts of a film slipping agent; and 0.5-3.0 parts of a film antiblocking agent. The preparation method comprises the following steps: mixing the components according to the parts by weight, extruding the mixture by means of a twin screw extruder to form pellets after mixing, then performing blow molding to form a film by means of a thermoplastic extrusion and film blowing machine, and then preparing various types and sizes of water-soluble shopping bags by means of a bag machine. The water-soluble shopping bag has higher bearing capacity and cold water solubility, is suitable for use in water-free environment, and after use dissolves upon contacting water without producing pollution.
Inventors:
CUI YUEFEI (CN)
BOETTCHER ROBERTO ASTETE (CL)
XIE BIN (CN)
BOETTCHER ROBERTO ASTETE (CL)
XIE BIN (CN)
Application Number:
PCT/CN2017/100434
Publication Date:
March 08, 2018
Filing Date:
September 05, 2017
Export Citation:
Assignee:
POLYE MAT CO LTD (CN)
ROBERTO ASTETE BOETTCHER (CL)
ROBERTO ASTETE BOETTCHER (CL)
International Classes:
B29C55/28; C08L29/04; C08K3/34; C08K3/36; C08K5/05; C08K5/053; C08K5/06; C08K5/098; C08K5/17; C08K5/20; C08K13/02; C08L5/00
Domestic Patent References:
| WO2016061069A2 | 2016-04-21 |
Foreign References:
| CN106380765A | 2017-02-08 | |||
| CN101085850A | 2007-12-12 | |||
| CN1711307A | 2005-12-21 | |||
| CN105646922A | 2016-06-08 | |||
| EP1378564A1 | 2004-01-07 |
Other References:
See also references of EP 3508529A4
Attorney, Agent or Firm:
JIAQUAN IP LAW FIRM (CN)
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