Title:
FUNCTIONALITY-IMPARTING METHOD FOR PREPARING THERMOPLASTIC COMPOSITE MATERIAL, AND THERMOPLASTIC COMPOSITE MATERIAL PREPARED THEREBY
Document Type and Number:
WIPO Patent Application WO/2021/060881
Kind Code:
A1
Abstract:
The present invention relates to a functionality-imparting method for preparing a thermoplastic composite material, and a thermoplastic composite material prepared thereby. The method for preparing a thermoplastic composite material comprises the steps of: (a) preparing a pre-impregnated thermoplastic composite material by impregnating reinforced fiber with low-viscosity thermoplastic resin; (b) pressing the pre-impregnated thermoplastic composite material to improve impregnation; (c) supplying high-viscosity thermoplastic resin to the pressed pre-impregnated thermoplastic composite material; (d) preparing an impregnated thermoplastic composite material having a desired weight fraction; and (e) cooling and winding the impregnated thermoplastic composite material. The method for preparing a thermoplastic composite material according to an embodiment can not only enable impregnation with high-viscosity thermoplastic resin without the cutting of reinforced fiber, but also even imparts functionality such as mechanical properties, flame retardancy, resistance to light, and the like, and thus a functionalized thermoplastic composite material which is highly impregnated with reinforced fiber can be prepared.
Inventors:
KIL HYUNG BAE (KR)
Application Number:
PCT/KR2020/012985
Publication Date:
April 01, 2021
Filing Date:
September 24, 2020
Export Citation:
Assignee:
KOLON PLASTICS INC (KR)
International Classes:
B29C70/50; B29B15/12; B29C70/06; B29C70/54; B29K101/12; B29K105/06
Foreign References:
| JP3353377B2 | 2002-12-03 | |||
| KR101867201B1 | 2018-06-12 | |||
| KR101676726B1 | 2016-11-17 | |||
| KR20060117677A | 2006-11-17 | |||
| KR20170012576A | 2017-02-02 | |||
| KR102078617B1 | 2020-02-19 |
Attorney, Agent or Firm:
HAEDAM IP GROUP (KR)
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