Two-part fast curing RTV silicone for formed-on-part automotive gasket
US5346940A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1993 |
| Grant date | Sep 13, 1994 |
| Priority date | — |
| Expiry date | Mar 24, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A two-part RTV silicone preapplied compression gasket material for forming compression gaskets in place. The formulation includes a silanol terminated polyorganosiloxane, at least 5% by weight of the formulation of a tri- or tetra- methoxy or enoxy functional silane crosslinker, water, and, a condensation catalyst selected from the group consisting of stannous carboxylate compounds, dimethyl tin (IV) compounds and mixtures thereof. One of the two parts of the formulation includes the water component and the other of said two parts is a dry part and includes the crosslinker component. The formulation provides fast cure, fast development of compression set resistance and excellent ultimate compression set resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.