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.
Claims13
A print sheet for use in the preparation of decorative laminates of high abrasion resistance, comprising:
- a paper sheet substrate having a print design thereon, and an ultra-thin abrasion resistant porous coating over said print design, said ultra-thin abrasion resistant coating comprising a mixture of (1) an abrasion resistant hard mineral of particle size 20-50 microns in high concentration sufficient to provide an abrasion resistant layer without interfering with visbility and (2) binder material for said mineral compatible with a thermosetting laminating resin selected from the group consisting of melamine-formaldehyde resin and polyester resin, and being impregnable with said laminating resin, said binder material being present in an amount sufficient to bind and stabilize said abrasion resistant mineral to the surface of said paper sheet.
A print sheet for use in the preparation of decorative laminates of high abrasion resistance, comprising:
- a paper sheet substrate having a print design thereon, and
- an ultra-thin abrasion resistant coating over said print design, said ultra-thin abrasion resistant coating having a calculated thickness on the order of 0.02-0.3 mils and comprising a mixture of (1) abrasion resistant hard mineral of small particle size and quantity sufficient to provide an abrasion resistant layer without interfering with visibility and (2) binder material for said mineral, said binder being present in an amount sufficient to bind and stabilize said abrasion resistant mineral to said paper sheet so as to provide abrasion resistance without the necessity of an overlay sheet, said coating being impregnable by a laminating resin selected from the group consisting of melamine-formaldehyde resin and polyester resin.
A print sheet for use in the preparation of decorative laminates of high abrasion resistance in which a thermosetting laminating resin selected from the group consisting of melamine-formaldehyde resin and polyester resin is employed, and print sheet comprising a paper sheet substrate unimpregnated with laminating resin having a print design thereon, and an ultra-thin abrasion resistant coating having a calculated thickness on the order of 0.02-0.3 mils and comprising a mixture of (1) abrasion resistant hard mineral of small particle size and quantity sufficient to provide an abrasion resistant layer without interfering with visibility and (2) binder material for said mineral, said binder material being present in a lesser amount than said mineral but sufficient to bind and stabilize said abrasion resistant mineral over said paper sheet, said print sheet including said coating being impregnable with said laminating resin.
Dependencies are inferred from the claim text.