Multilayer thermoplastic structure for gas tank
US6946176B2 · kind B2 · utility
15Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2001 |
| Grant date | Sep 20, 2005 |
| Priority date | — |
| Expiry date | Aug 27, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2918
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A multi-layer thermoplastic structure that has at least one layer that is between 0.3 and 20 mm thick and is made of an ethylene-vinyl alcohol copolymer with a density of between 0.94 and 1.4, and a melt flow index of between 1.3 and 4.2 g/10 minutes at a temperature between 170 and 240 degree C. The multi-layer thermoplastic structure is obtained by rotation moulding and is of particular benefit when functioning as a gas tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.