Process of forming an embossed surface covering having a wear la

Details Process of forming an embossed surface covering having a wear la Process of forming an embossed surface covering having a wear la

1981-08-24

1986-05-13

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 50, 264 52, 264DIG18, 264DIG60, 264DIG82, B29C 3920, C08J 324, C08J 930

Patent

active

045885451

ABSTRACT:
The present invention relates to superior wear layer-coated embossed surface coverings which are prepared by depositing a cross-linking inhibitor on at least a portion of the surface of a cross-linkable foam formed on a backing and containing a cross-linking initiator. Preferably a wear layer is applied at this point and cross-linking of the affected areas is accomplished by heating the sheet. The sheet of material is either uniformly or differentially heated and then uniformly compressed to a desired embossing depth using a non-patterned press or roll. The noncross-linked regions remain depressed upon removal of the compressing force whereas the cross-linked regions return essentially to their original height. The wear layer remains in contact with all of the foam regions so that the resulting sheet of material has a wear layer which is uniformly adhered to the contour of the foam layer. The surface of the sheet has an embossed or textured finish.

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Brydson; J. A., "Plastics Materials", Princeton, N.J., D. Van Nostrand, .COPYRGT.1966, pp. 33-35.

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