Composition based on silicone oils that can be crosslinked into elastomers for the impregnation treatment of fibrous materials
US7642331B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2003 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | May 17, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2915
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A hydrosilylation (polyaddition)-vulcanizing elastomer silicone composition, including (a) a vinylated polyorganosiloxane (POS), (b) at least one hydrogenated POS, (c) a platinum catalyst, (d) optionally a coupling agent, (e) optionally a mineral filler, (f) optionally a crosslinking inhibitor, and optionally a POS resin and functional additives. The composition has a dynamic viscosity between 1,000 and 7,000 mPa·s, at 25° C. before crosslinking and, after overall crosslinking by thermal effect has at least one of the following properties: a Shore A hardness of at least 2, a breaking strength of at least 0.5 N·mm−1, and a breaking elongation of at least 50%. Also disclosed is a composite which is fully impregnated by means of a 100% bicomponent (RTV-2) silicone liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.