Method of expanding a gel material
US6235801A · kind A · utility
30Cited by
19References
8Claims
0Family size
Inventors
Key dates
| Filing date | Apr 2, 1999 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | Apr 2, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2383/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A gel material is expanded by first subjecting mixture of a gel precursor material and heat-expandable microspheres to a curing regimen which cures the precursor material into a gel material without expanding the microspheres and then heating to expand the gel material containing the microspheres. In this manner, an intermediate product in the form of a gel which is more handleable than the typically syrupy precursor material is produced. This intermediate product can be manipulated and placed at the intended application location and then expanded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.