Refrigerant-transporting hose
US4998564A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 1989 |
| Grant date | Mar 12, 1991 |
| Priority date | — |
| Expiry date | May 30, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L2011/047
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A refrigerant-transporting hose including an elastic tube through which a refrigerant is transported, the elastic tube including a tubular resinous layer formed of a resinous composition, the resinous composition containing as a major component thereof a polyamide resin produced by reaction of hexamethylene diamine and an aliphatic dicarboxylic acid compound having from eight to sixteen carbon atoms. The resinous composition may contain as a major component thereof a mixture of saponified ethylene-vinyl acetate copolymer and a polyamide resin produced by reaction of hexamethylene diamine and an aliphatic dicarboxylic acid compound having from eight to sixteen carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.