One-part organopolysiloxane rubber composition for use as a protection coating
US6437039B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2000 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Mar 29, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D183/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a one-part room temperature vulcanizable organopolysiloxane rubber composition which crosslinks in the presence of moisture to form a coating for the corrosion protection of metals. The one-part organopolysiloxane rubber composition comprises the product which is obtained by mixing the following:a) from about 20 to about 98 weight percent of one or more polydiorganosiloxane fluids of the formulaR″[(R)2SiO]nR′in which R is a monovalent alkyl or alkylene radical having 1 to 8 carbon atoms or a phenyl radical, R′ is a monovalent alkyl or alkylene radical having 1 to 8 carbon atoms or a phenyl radical, R″ is OH or a monovalent alkyl or alkylene radical having 1 to 8 carbon atoms or a phenyl radical and n has an average value such that the viscosity is from about 1 to about 100,000 centipoise at 25° C., wherein at least one of the polyorganosiloxane fluid has R″ equal to OH and n has an average value such that the viscosity is in the range from 1,000 to 100,000 centipoise at 25° C., preferably from 3,000 to 40,000 centipoise at 25° C.;b) from 0 to about 40 weight percent of a cyclo-organosiloxane of the formula[(…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.