Spongeable silicone gum stock
US4024091A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1975 |
| Grant date | May 17, 1977 |
| Priority date | — |
| Expiry date | Jul 14, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2383/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polydiorganosiloxane gum base stocks which contain per 100 parts by weight of the stock, 15 to 60 parts by weight of an organosiloxane having an average of at least 2 silicon-bonded hydroxyl radicals per molecule, 3 to 25 parts by weight of an organosiloxane having an average of at least 2.5 silicon-bonded hydrogen atoms per molecule, 0.05 to 0.5 parts by weight acetylenic alcohol inhibitor and 1 to 200 p.p.m. platinum as a platinum catalyst, can be sponged by heating the composition above 125.degree. C. The sponged products are elastomeric, have flame retardant properties and can be used where applications see relatively high temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.