Transfer coating of abrasion-resistant layers
AssigneeNevamar Corporation
InventorsIsrael S. Ungar, Herbert I. Scher, Nelson L. O'Neill
Life of this patent
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Abstract
Highly abrasion-resistant transfer coatings are provided on a wide variety of substrates, thermoplastic or thermosetting, by transfer coating from a mold surface or a flexible web, such as by use of a heat transfer tape, an ultra-thin coating consisting essentially of a non-resinous binder material such as microcrystalline cellulose together with mineral abrasive particles, preferably alumina or a mixture of silica and alumina which have been heated together at a temperature of at least 140.degree. F., the ultra-thin coating also preferably containing a silane and a small quantity of a sticking agent such as a thermoplastic or thermosetting resin.
Claims19
A process for providing an abrasion-resistant deposit on the surface of a substrate, comprising
- providing a transfer carrier coated with an ultra-thin deposit consisting essentially of a non-resinous binder material, a small quantity of finely divided solid lubricant and mineral abrasive particles, which ultra-thin deposit has been dried on said transfer carrier at a temperature of at least 140.degree. F.,
- transferring said dried ultra-thin deposit from said transfer carrier to the surface of a substrate under conditions of heat and pressure whereby said deposit becomes adhered to said substrate, and
- removing said transfer carrier.
Dependencies are inferred from the claim text.