Pressurized gas vessel having internal chemical surface
US5928743A · kind A · utility
3Cited by
13References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1997 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Jul 24, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31544
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A pressurized vessel filled with a high purity gas, said vessel having a polymeric coating covering its internal surfaces; PA1 said high purity gases selected from the group consisting of hydrogen chloride, tungsten hexafluoride, chlorine, hydrogen bromide, nitrogen trifluoride, silanes and boron trichloride; PA1 said vessel filled with gas pressure from about 200 psig to about 6,000 psig; and the material for said polymeric coating selected from the group of polyperfluoroalkoxyethylene, copolymer of ethylene and chlorotrifluoroethylene and copolymer of ethylene and tetrafluoroethylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.