Radiation-curable coating compositions that form transparent, ab

Coating processes – Direct application of electrical – magnetic – wave – or... – Polymerization of coating utilizing direct application of...

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522 31, 522 83, 522 84, 522 99, 528 25, C08F 250, B05D 306, C08K 336, C08K 554

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052215601

ABSTRACT:
Radiator-Curable coating compositions which form transparent, abrasion-resistant, tintable coatings upon curing by exposure to high intensity irradiation, such as ultraviolet light or electron beam irradiation. The coating composition comprises a combination of effective amounts of (a) colloidal silica, (b) the hydrolysis product of a silane compound having a polymerizable functional group such as acryloxy-functional silanes or glycidoxy-functional silanes or mixtures of both, (c) polyfunctional, polymerizable, non-acrylate-functional ethers, (d) at least one radiation sensitive initiator and, preferably, (e) a monofunctional monomer. When the surface of a substrate coated with the cured coating composition is immersed in a colored dye bath for a sufficient period of time, the coating absorbs or transmits to the substrate a desired amount of dye.

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