Process for surface modification of polymer articles

Coating processes – Coating has x-ray – ultraviolet – or infrared properties

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Details

427331, 427336, 427353, 427377, 4274301, 4274344, 4274345, B05D 500

Patent

active

050912135

ABSTRACT:
A process for modifying the surface region of a polymer article by incorporating one or more ingredients therein. Such ingredients may be ultraviolet light stabilizers, antioxidants, anti-static agents, pigments and the like. The polymer article, e.g. a sheet of polyvinyl chloride, is immersed in a liquid (e.g. water) and the immersed article is contacted with a solution of the ingredient in a solvent. The liquid must be one which is non-aggressive towards the article and must also be immiscible with the solvent.

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