Title:
MULTI-LAYER CO-EXTRUSION ONE-STEP FORMING-TYPE HOSE CONTAINER
Document Type and Number:
WIPO Patent Application WO/2021/097786
Kind Code:
A1
Abstract:
Disclosed is a multi-layer co-extrusion one-step forming-type hose container, comprising an inner pipe (10), an outer pipe (20) and a connector (30), wherein the inner pipe (10) and the outer pipe (20) are manufactured in a multi-layer co-extrusion forming manner, then the outer layer and the inner layer are stripped and separated to form the outer pipe (10) and the inner pipe (20), the inner pipe (10) is located in the outer pipe (20), the inner pipe (10) is provided with an inner cavity used for containing materials, the inner pipe (10) and the outer pipe (20) are both connected to the connector (30), and the connector (30) is provided with a discharging hole (311) enabling the inner cavity to be in communication with the outside. A vent hole (21) in communication with the outside is provided in the pipe wall of the outer pipe (20), and air can flow into the space between the inner pipe (10) and the outer pipe (20), such that the outer pipe (20) can maintain the original shape thereof.
Inventors:
WANG MINGYUAN (CN)
YAN JIAJUN (CN)
WANG NANCHIEH (CN)
YAN JIAJUN (CN)
WANG NANCHIEH (CN)
Application Number:
PCT/CN2019/120136
Publication Date:
May 27, 2021
Filing Date:
November 22, 2019
Export Citation:
Assignee:
UDN PACKAGING CORP (CN)
International Classes:
B65D35/02; B65D35/22; B65D83/00
Foreign References:
| CN1545467A | 2004-11-10 | |||
| JP2017154752A | 2017-09-07 | |||
| JP2014069826A | 2014-04-21 | |||
| CN109699178A | 2019-04-30 | |||
| CN103917457A | 2014-07-09 | |||
| CN103732507A | 2014-04-16 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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