Coating compositions comprising hydrolysis resistant organomodified disiloxane surfactants
US8183317B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2009 |
| Grant date | May 22, 2012 |
| Priority date | — |
| Expiry date | Apr 22, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D163/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A coating composition includes a silicone and a coating resin. The silicone has the formula MM′ where M=R1R2R3SiO1/2 and M′=R4R5R6SiO1/2. R1 can be a branched monovalent hydrocarbon radical of from 3 to 6 carbon atoms or R7, where R7 has the formula R8R9R10SiR12 wherein R8, R9, and R10 can independently be monovalent hydrocarbon radicals having from 1 to 6 carbon atoms and monovalent aryl or alkaryl hydrocarbon radicals having from 6 to 13 carbon atoms. R12 is a divalent hydrocarbon radical having from 1 to 3 carbon atoms. R2 and R3 can be from 1 to 6 carbon atom monovalent hydrocarbon radicals or R1, with R4 being an alkylpolyalkyleneoxide. And R5 and R6 are each independently selected from the group of monovalent hydrocarbon radicals having from 1 to 6 carbon atoms or R4 that exhibit resistance to hydrolysis over a wide pH range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.