Room temperature vulcanizable organopolysiloxane composition and method for producing the same
US5286766A · kind A · utility
21Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1992 |
| Grant date | Feb 15, 1994 |
| Priority date | — |
| Expiry date | Jun 3, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/18
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A room temperature vulcanizable organopolysiloxane composition comprises (A) a diorganopolysiloxane which is blocked with an alkoxy group at both ends of a molecular chain thereof, (B) a tri or tetraalkoxysilane, (C) a titanium curing catalyst, (D) a silica filler, and (E) an alkoxysilane which is less hydrolyzable than the alkoxysilane of (B). The composition yields a cured product having high strength and high elongation and is low in viscosity and extrusion rate. A method for preparing the composition is also provided in which the ingredients (A) to (D) are first mixed together, to which the ingredient (E) is added.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.