Title:
COMPOSITE PIPE AND COMPOSITE PANEL WHICH HAVE IMPROVED ADHESIVE PROPERTIES BY USING THERMOPLASTIC TREATMENT OF POLYUREA, AND MANUFACTURING METHODS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/030872
Kind Code:
A1
Abstract:
A method for manufacturing a composite pipe or a composite panel, according to the present invention, heats a polyurea layer to 180-320°C to plasticize a polyurea, and thus provides high adhesive strength and peel strength and forms an interfacial film on the outer surface and the surface, in contact with a material to be coated, of the polyurea layer, so that a moisture barrier property is improved and a relatively large number of pores are included in the polyurea layer, and thus elasticity and impact strength can be improved. In addition, the present invention comprises a composite pipe and a composite panel that are manufactured by the manufacturing method.
Inventors:
BANG MANHYUK (KR)
Application Number:
PCT/KR2021/009839
Publication Date:
February 10, 2022
Filing Date:
July 28, 2021
Export Citation:
Assignee:
BANG MANHYUK (KR)
International Classes:
B29C65/48; B29C63/00; B29C63/18; B29C63/26; B29C63/34; B29C63/48; B29C65/52; B29D23/00; B29L23/00
Foreign References:
| KR100899667B1 | 2009-05-27 | |||
| KR101870573B1 | 2018-06-22 | |||
| KR100626316B1 | 2006-09-20 | |||
| KR101680539B1 | 2016-12-12 | |||
| JP2004099896A | 2004-04-02 |
Attorney, Agent or Firm:
CHA, Hyeong-Seog (KR)
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