Title:
HOSE FOR REFRIGERANT TRANSPORTATION AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/188569
Kind Code:
A1
Abstract:
Provided is a hose for refrigerant transportation which is excellent in terms of flexibility, water-vapor barrier property, and heat resistance. The hose for refrigerant transportation comprises an outer layer, a reinforcement layer, and an inner layer, and is characterized in that the outer layer is made of a resin composition comprising an elastomer having a polyisobutylene skeleton and a crosslinked resin, the content of the elastomer having a polyisobutylene skeleton in the resin composition being 30-90 mass% with respect to the mass of the resin composition and the content of the crosslinked resin in the resin composition being 10-70 mass% with respect to the mass of the resin composition, the resin composition has a water vapor permeability of 2.0 g·mm/(m2·24h) or less, and the resin composition has a ratio of the 100°C breaking strength TB100 to the 25°C breaking strength TB25, TB100/TB25, of 0.2-1.0.
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Inventors:
WAKABAYASHI KENTA (JP)
NISHI MIYUKI (JP)
NISHI MIYUKI (JP)
Application Number:
PCT/JP2022/045680
Publication Date:
October 05, 2023
Filing Date:
December 12, 2022
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
B32B1/08; B32B7/022; B32B25/10; B32B25/18; B60H1/08; C08L23/22; C08L101/10; F16L11/10
Domestic Patent References:
| WO2011018904A1 | 2011-02-17 | |||
| WO2012039203A1 | 2012-03-29 |
Foreign References:
| JPH04145284A | 1992-05-19 | |||
| JP2001235068A | 2001-08-31 | |||
| JP2021120584A | 2021-08-19 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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