The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 10, 1978
Filed:
Feb. 04, 1974
Jack H Witman, Lancaster, PA (US);
Armstrong Cork Company, Lancaster, PA (US);
Abstract
An improvement in the process for producing a decorative surface covering having a multilevel embossed wear surface wherein, a layer of vinyl chloride resin dryblend which may be foamable or unfoamable, and which contains a polymerizable monomer having at least two olefinically unsaturated sites is formed. After sintering to achieve a solid but porous layer having substantial voids throughout, a plurality of resinous ink compositions, formulated to produce varying degrees of elevation in the final product, are applied in a design. Among the inks used are non-monomer-containing ink compositions which may include foamable and non-foamable inks and which may or may not include a catalyst for the monomer in the dryblend. The improvement of this invention comprises the inclusion in the plurality of inks printed in a design on the monomer-containing dryblend layer of an ink containing the same polymerizable monomer as that in the dryblend, and a catalyst for the monomer. Upon subsequent heat and fusion, the areas to which the inks containing the monomer and/or the catalyst for the monomer were applied will have a different height and surface texture from those produced by the other inks and from that of surrounding regions where no ink was applied; thus producing an embossed textured effect.