Storage stable and room temperature-curable organopolysiloxane composition
US4879339A · kind A · utility
21Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1988 |
| Grant date | Nov 7, 1989 |
| Priority date | — |
| Expiry date | Mar 3, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/20
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A room temperature-curable organopolysiloxane composition is proposed which is useful as a material for imprinting or blocking of forms of, for example, medical and dental prostheses without the problem of curing retardation or incomplete curing. The composition comprises a vinyl-containing organopolysiloxane, organohydrogenpolysiloxane, platinum catalyst, inorganic filler, liquid paraffin or petrolatum and antioxidant. The antioxidant serves to protect the liquid paraffin or petrolatum from oxidation to produce oxidized compounds which may deactivate the platinum catalyst to cause curing retardation or incomplete curing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.