Fuel tanks
US7074468B2 · kind B2 · utility
0Cited by
4References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 15, 2001 |
| Grant date | Jul 11, 2006 |
| Priority date | — |
| Expiry date | Nov 21, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31855
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Liquid containes made from certain ethylene copolymers have been found to leak less, swell and wrap less than conventional plastic liquid containes. The invention therefore provides the use of an ethylene and at least one C3-10 α-olefin copolymer having the following properties: i) MFR2=2–10; ii) MFR21/MFR2=15–20; iii) density —925–950 g/cm3; iv) molecular weight distribution Mw/MN=2.1–3.5 in the manufacture of a liquid container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.