Silicone resin composition for water repellent coating
US7019069B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2001 |
| Grant date | Mar 28, 2006 |
| Priority date | — |
| Expiry date | Aug 22, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D183/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Resinous composition comprising: (A) 100 weight parts of(R2SiO2/2)w(RSiO3/2)x(SiO4/2)y(O1/2R1)zwherein R is selected from the group consisting of monovalent hydrocarbon groups having 1 to 10 carbon atoms, R1 is selected from the group consisting of the hydrogen atom and saturated hydrocarbon groups having from 1 to 6 carbon atoms, w is a number from 0 to 0.2, x is a number from 0.4 to 0.9, y is a number from 0.1 to 0.6, z is a number from 0.1 to 0.5, and (w+x+y)=1;(B) 20 to 150 weight parts of an alcohol-based solvent;(C) 100 to 1000 weight parts of a solvent selected from the group consisting of hydrocarbon-based solvents and polydimethylsiloxanes described by the formula Me3SiO(Me2SiO)nSiMe3, wherein Me is the methyl group and n has a value of 0 or 1;(D) 1 to 100 weight parts of a coupling agent selected from the group consisting of alkoxysilanes and silane coupling agents;(E) 0.1 to 20 weight parts of a condensation catalyst, and(F) 0.1 to 20 weight parts of a polyoxyalkylene-modified silicone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.