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US 4,305,987 AGranted
Abrasion resistant laminate
AssigneeNevamar Corporation
InventorsHerbert I. Scher, Israel S. Ungar
Life of this patent
Estimating the term…
Abstract
An abrasion-resistant laminate is prepared by providing an ultra thin coating of mineral particles and micro crystalline cellulose on the surface of conventional printed paper, followed by impregnating the paper with a conventional laminating resin, and then using the print paper so obtained in a laminating process without the necessity of using an overlay sheet.
Claims10
An abrasion resistant decorative laminate meeting NEMA abrasion resistance standards and also capable of withstanding 175-200 cycles of initial wear in the same test comprising:
- a backing layer and laminated thereto a thermoset laminating resin impregnated decorative facing sheet, said decorative facing sheet having a print design thereon and an ultra-thin abrasion resistant coating over said print design, said ultra-thin abrasion resistant coating having a thickness of up to about 0.3 mils comprising a mixture of (1) an abrasion resistant hard mineral particle size 20-50 microns in high concentration sufficient to provide for abrasion resistance without interfering with visibility and (2) stabilizing binder material for said mineral, said thermoset resin being impregnated throughout said print sheet and said coating, said binder material not interfering with visibility, and with said ultra-thin abrasion resistant coating forming the uppermost layer of said laminate.
Dependencies are inferred from the claim text.