Organic based varnish or gelcoat, methods for its manufacture and use, and substrate comprising such varnish or gelcoat
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United States of America Patent
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Issued Date -
Aug 28, 2003
app pub date -
Mar 21, 2003
filing date -
Jul 5, 2000
priority date (Note) -
Abandoned
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Abstract
Organic based and preferably clear and glossy lacquer/varnish or an organically based gel-coat with the ability to form coatings with high wear resistance, as well as method for manufacturing same, said lacquer/varnish or gel-coat comprises a controlled amount of inorganic polymer particles mainly with a size of 1-100 nm, the particles being able to form a three-dimensional network that is independent of the organic network of the lacquer or which may have bondings to this network. The polymer particles are typically a reaction product obtained by hydrolysis and condensation reactions of monomer compounds chosen among the following groups: i) M(OR).sub.n, or ii) R'-M(OR).sub.n, where M is a metal ion, and R is an organic group chosen among alkyl, alkenyl, aryl or combinations of such groups with from 1 to 8 carbon atoms, R'.dbd.R or R--X, where X is an organic group like e.g. amine, carboxyl or isocyanate, and n is an integer between 1 and 6. Alternatively the polymer particles are natural or synthetic clay based powders or combinations of such powders. The lacquer/varnish or gel-coat is used as protective coatings on e.g. surfaces of aluminium or steel, preferably rolled aluminium or steel.
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