Aqueous dispersions of crosslinkable silicones/siliconates
US5004771A · kind A · utility
10Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1989 |
| Grant date | Apr 2, 1991 |
| Priority date | — |
| Expiry date | Oct 11, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2383/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Aqueous dispersions of a silicone crosslinkable into elastomeric state by elimination of water therefrom, include: PA1 (A) 100 parts of an oil-in-water emulsion of an .alpha.,.omega.-(dihydroxy)polydiorganosiloxane, stabilized with an anionic and/or nonionic surfactant; PA1 (B) 0.1 to 15 parts of an organosiliconate; and PA1 (C) 5 to 250 parts of a nonsiliceous inorganic filler material; and such emulsion having a pH higher than 7 and a solids content of at least 40%; the subject emulsions are especially adapted for the production of silicone elastomer seals for the coating of food packaging materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.