Method of reducing the foam density of silicone foams and compositions
US4026845A · kind A · utility
27Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1975 |
| Grant date | May 31, 1977 |
| Priority date | — |
| Expiry date | Jul 14, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2483/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Mixing a fluorinated surfactant with a silicone foam composition decreases the density of the cured foam. Increasing the amount of fluorinated surfactant decreases the foam density. Silicone compositions comprising a hydroxylated organosiloxane, an organohydrogensiloxane, a platinum catalyst and a fluorinated surfactant cure to foams with lower densities than the same compositions without the fluorinated surfactant. The cured foams can be used in the same applications as other silicone foams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.