Aqueous dispersions of crosslinkable silicones/alkenyloxysilanes
US5145901A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 11, 1989 |
| Grant date | Sep 8, 1992 |
| Priority date | — |
| Expiry date | Oct 11, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2383/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Aqueous dispersions of a silicone crosslinkable into elastomeric state by elimination of water therefrom, include: PA0 (A) 100 parts of an oil-in-water emulsion of an .alpha.,.omega.-(dihydroxy)polydiorganosiloxane, stabilized with an anionic and/or nonionic surfactant; PA0 (B) 0.1 to 20 parts of an alkenyloxysilane; PA0 (C) 0.01 to 3 parts of a metal curing catalyst; and PA0 (D) 0 to 250 parts of a nonsiliceous inorganic filler material; and such emulsion having a pH of from 7 to 13 and a solids content of at least 40%; the subject emulsions are especially adapted for the production of paints and of silicone elastomer seals, and for the coating of pharmaceuticals, agricultural chemicals and food packaging materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.