Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
HOSE FOR TRANSPORTATION OF REFRIGERANT
Document Type and Number:
WIPO Patent Application WO/2023/007940
Kind Code:
A1
Abstract:
Provided is a hose that is for transportation of a refrigerant and that has excellent permeation resistance to a refrigerant transported in the hose and water outside the hose, and that is light weight, has good flexibility, and excellent handling properties. An inner surface layer 2 is formed of a thermoplastic resin or a thermoplastic resin composition having an island-sea structure including a matrix containing a thermoplastic resin and domains containing an elastomer. An outer surface layer 3 is formed of a thermoplastic resin composition having an island-sea structure including a matrix containing a thermoplastic resin and domains containing an elastomer. The oxygen permeability coefficient of the thermoplastic resin composition or the thermoplastic resin of the inner surface layer 2 is at most 0.05 cm3·mm/(m2·day·mmHg) at a temperature of 21°C and a relative humidity of 50%. The water vapor permeability coefficient of the thermoplastic resin composition of the outer surface layer 3 is at most 10.0 g·mm/(m2·24h) at a temperature of 60°C and a relative humidity of 100%. A reinforcement layer 4 is formed of organic fibers 4f having an inclination angle a that is set to 49-61°.

More Like This:
WO/2013/038576REFRIGERANT TRANSPORTING HOSE
JP2006521965Attenuation of fluid disturbances in fluid-driven actuators
JP2008194862METHOD FOR PRODUCING TUBE MADE OF REINFORCEMENT RUBBER AND APPARATUS FOR WINDING REINFORCING WIRE ROD
Inventors:
SAITA TOMOHIDE (JP)
WAKABAYASHI KENTA (JP)
SATO SHUN (JP)
Application Number:
PCT/JP2022/022108
Publication Date:
February 02, 2023
Filing Date:
May 31, 2022
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
F16L11/08
Domestic Patent References:
WO2021054058A12021-03-25
WO2010073375A12010-07-01
WO2020137712A12020-07-02
Foreign References:
JPH01286829A1989-11-17
JP2001235068A2001-08-31
JP2018025236A2018-02-15
JPH10274362A1998-10-13
JPH06294484A1994-10-21
JP2013155793A2013-08-15
JP2013155793A2013-08-15
Attorney, Agent or Firm:
SEIRYU PATENT PROFESSIONAL CORPORATION et al. (JP)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: NEGATIVE ELECTRODE MATERIAL, NEGATIVE ELECTRODE, BATTERY, AND METHOD FOR PRODUCING SAME

Next Patent: POSITIVE PHOTOSENSITIVE RESIN COMPOSITION CONTAINING SPECIFIC COPOLYMER