Acrylic fluorocarbon polymer containing coating
US5629372A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1995 |
| Grant date | May 13, 1997 |
| Priority date | — |
| Expiry date | Oct 16, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/6279
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A clear coating composition containing about 45-80% by weight of a binder and 20-55% by weight of an organic liquid; wherein the binder contains (A) about 40-90% by weight, based on the weight of the binder, of an acrylic polymer containing polymerized hydroxyl containing monomers of the following group of hydroxy alkyl acrylate or methacrylates having 1-4 carbon atoms in the alkyl group, and polymerized alkyl acrylates and methacrylates having 1-18 carbon atoms in the alkyl groups, or styrene or any mixtures of the above and 0.1-5.0% by weight, based on the weight of the acrylic polymer, of polymerized fluoroalkyl containing monomer represented by the formula ##STR1## where R is hydrogen or an alkyl group having 1-2 carbon atoms, n is an integer of 1-11 and R.sub.f is a fluoroalkyl containing group having at least 4 carbon atoms and (B) about 10-60% by weight, based on the weight of the binder, of an organic polyisocyanate crosslinking agent; and where a cured layer of the coating composition has a combination of a water advancing contact angle of at least 100.degree. and a hexadecane contact angle of at least 40.degree.. A process for making the acrylic fluorocarbon polymer and a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.