Sealing composition for inflatable articles containing gas under pressure
US4776888A · kind A · utility
Inventor
Key dates
| Filing date | Aug 28, 1987 |
| Grant date | Oct 11, 1988 |
| Priority date | — |
| Expiry date | Aug 28, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T152/10684
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A sealing system and sealing composition are provided for inflatable articles containing air under pressure. The sealing composition includes particles or particulates of shapes having sharp corners thereon which tend to dig into the article around the opening and wedge themselves therein. The sealing composition also includes fibers, at least some of which are fibrillated. The fibers tend to wrap around the particles and further plug the leak opening. The particles and the fibers are in a liquid carrier which also tends to form a bond of the particles and fibers in the leak opening. The particles in the composition are of particular ranges of sizes for different articles, the larger particles being used in larger articles, such as large tires for construction machines, for example.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.