Coating composition comprising a vinyl modified alkyd resin
US8053519B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2005 |
| Grant date | Nov 8, 2011 |
| Priority date | — |
| Expiry date | Oct 14, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D167/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Coating composition comprising an alkyd having at least 20% by weight of vinylic building blocks and having an oil length below 65%. The weight ratio non-vinylic:vinylic groups is between 1:1 and 4:1, preferably between 1.5:1 and 3:1. The vinylic groups include styrene and (meth)acrylate groups. The ratio of styrene:(meth)acrylate groups is between 0.5:1 and 4:1, preferably between 1.5:1 and 3:1. The vinylic groups show low polarity. The Mw is below 10,000. The oil length is above 45%. The coating composition can be water borne or solvent borne. The alkyd according to the invention allows formulation of solvent borne coatings a volatile organic content below 300 g/l.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.