Room temperature-curable organopolysiloxane composition
US4734479A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1987 |
| Grant date | Mar 29, 1988 |
| Priority date | — |
| Expiry date | Mar 18, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S528/901
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The essential components in the inventive room temperature-curable organopolysiloxane composition are: (A-1) a diorganopolysiloxane of which each terminal silicon atom has a silanolic hydroxy group or two alkoxy groups; (A-2) a filler; (A-3) an alkenyloxy silane, e.g. methyl tri)isopropenyloxy)silane; (A-4) a guanidino-containing organosilicon compound, e.g. 3-(tetramethylguanidino)propyl trimethoxy silane; (A-5) an alcohol, e.g. methyl or ethyl alcohol; (B) an organosilicon compound having a silicon-bonded hydrogen atom; and (C) an organic tin compound as a catalyst. By virtue of the unique formulation above, the composition is very stable in storage in a moisture-free condition for a long period of time without losing the high curability when exposed to a moisture-containing atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.