Laminated sheet
US5409041A · kind A · utility
36Cited by
26References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1992 |
| Grant date | Apr 25, 1995 |
| Priority date | — |
| Expiry date | Sep 14, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/3192
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An accumulator including a shell (1) divided into a gas chamber (a) and a fluid inflow chamber (b) by a bladder (32) made of a cold-resistant and gas-barrier laminated sheet which includes a polyvinyl alcohol type resin film (20) containing a polyol type plasticizer in an amount of 15% to 50% by weight, a rubber sheet layer (21) laminated at least one side of the polyvinyl alcohol type resin film and a film (23) disposed therebetween of a non-vapor- and non-plasticizer-permeable resin film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.