Resinous tube
US7488521B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2004 |
| Grant date | Feb 10, 2009 |
| Priority date | — |
| Expiry date | Nov 4, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2933
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A resinous tube which has a low permeability for alcohol-contained fuel in addition to usual gasoline and is sufficiently high in adhesiveness between a barrier layer (permeation-interrupting layer) and a protecting layer (layer covering the permeation-interrupting layer), is easy in reuse of marginal materials and the like, and is a low cost material arrangement is furnished. This resinous tube is formed by laminating pipe-shaped resin layers, in which a main component of at least one layer of layers constituting the tube is a resin such as PBT, PBN, PET, PEN or the like, and a main component of a layer other than the above-mentioned layer is PBT copolymer. The PBT copolymer contains an acid component and a glycol component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.