Title:
METHOD OF MANUFACTURING A MULTI-LAYER FILM INCLUDING A FOAMING LAYER
Document Type and Number:
WIPO Patent Application WO/2012/046968
Kind Code:
A2
Abstract:
The present invention relates to a method of manufacturing a film, and more particularly, to a method of manufacturing a multi-layer film having functions such as antistatic and buffering. In terms of its configuration, a film includes a foaming layer 1 for absorbing physical impact, which is interposed between layers, and a surface layer 3 having an antistatic function, which is installed at each of both surfaces. In relation to a method of manufacturing the film, the foaming layer 1 and the surface layer 3 are laminated when a liquid synthetic resin is in a molten state, and then, are extruded in one blow extruder, so that forming and laminating are simultaneously performed.
Inventors:
JANG HYUN BONG (KR)
Application Number:
PCT/KR2011/007043
Publication Date:
April 12, 2012
Filing Date:
September 26, 2011
Export Citation:
Assignee:
JANG HYUN BONG (KR)
International Classes:
B29C48/08; B29C48/10; B29C48/11; B29C48/305; B29D7/01
Foreign References:
| JP2004291623A | 2004-10-21 | |||
| JP2001347589A | 2001-12-18 | |||
| JP2001113585A | 2001-04-24 | |||
| KR20100019967A | 2010-02-19 |
Attorney, Agent or Firm:
PARK, Jun Youn (KR)
박준연 (KR)
박준연 (KR)
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Claims: