Title:
SHOCK TUBE FOR TRANSMISSION OF DETONATION SIGNAL AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/128163
Kind Code:
A1
Abstract:
The present invention relates to a shock tube for transmission of a detonation signal and a manufacturing method therefor. In the shock tube for transmission of a detonation signal, an inner layer portion includes a polyethylene-based resin, an ethylene acrylic acid copolymer (EAA), an ethylene vinyl acetate copolymer (EVA), and a compatibilizer, and employs as a base resin a polyethylene-based resin higher in softening point than conventional ionomers, thus supplementing the weak rupture resistance at high and low temperatures and an inner layer part includes an ethylene acrylic acid copolymer (EAA) and an ethylene vinyl acetate copolymer (EVA) to impart stickiness and employs nylon (PA6), SBBC, MAH, etc. to improve in mechanical strength and heat resistance, whereby the shock tube has an extended operating temperature range, prevents from the inner passage from being blocked due to tube softening, and exhibits improved rupture resistance.
Inventors:
LEE SUNG HO (KR)
JANG MIN KYUNG (KR)
JANG MIN KYUNG (KR)
Application Number:
PCT/KR2022/015167
Publication Date:
July 06, 2023
Filing Date:
October 07, 2022
Export Citation:
Assignee:
HANWHA CORP (KR)
International Classes:
C06C5/00; B29C48/00; B32B1/08; B32B27/32; C08K5/09; C08L23/06; C08L23/08; C08L77/02; F42D1/04
Foreign References:
| KR100604263B1 | 2006-07-25 | |||
| EP0670824B1 | 1998-04-01 | |||
| KR20000060445A | 2000-10-16 | |||
| KR20150100971A | 2015-09-03 | |||
| EP0000523B1 | 1982-06-16 |
Attorney, Agent or Firm:
THEHO PATENT & LAW FIRM (KR)
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