Method of producing decorative sheets having localized patterns of color, decorative sheets produced by such method, and laminates employing such decorative sheets
Patent 5252378 Issued on October 12, 1993. Estimated Expiration Date: 
May 13, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 13, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References Re30233 3125484 3135643 3223579 3373070 3373071 3451878 3718536 Decorative melamine laminates with high yield core stock Decorative sheet for solid color laminates InventorsAssigneeApplicationNo. 882508 filed on 05/13/1992US Classes:428/195.1, Discontinuous or differential coating, impregnation or bond (e.g., artwork, printing, retouched photograph, etc.)156/79, Subsequent to assembly of laminae428/204, Intermediate layer contains particulate material (e.g., pigment, etc.)428/206, Including particulate material428/207, Including coloring matter428/215, Absolute thicknesses specified428/913.3, DECORATIVE ARTICLE FOR VIEWING FROM ONE SIDE ONLY (E.G., PLAQUE, ETC.)428/915Fraud or tamper detectingExaminersPrimary: Ryan, PatrickAssistant: Bahta, Abraham Attorney, Agent or FirmForeign Patent References
International ClassB32B 009/06AbstractA process for producing a decorative sheet having the appearance of localized single or multi-colored patterns comprising: adding to a furnish of fibrous material in an aqueous dispersing medium about 0.1 to 25%, based on the weight of the fibers, of wax-encapsulated pigment beads containing numerous individual pigment particles of one or more colors, the beads having a particle size of about 0.1 to 2.0 millimeters; removing the aqueous dispersing medium from the furnish to form a fibrous sheet having the wax-encapsulated pigment beads dispersed therein; and heating the sheet to a temperature sufficient to at least partially melt the wax from the pigment beads, the pigment beads exhibiting random patterns of one or more distinct colors and intensity extending from the upper surface of the sheet to the bottom surface of the sheet; the decorative sheet formed by the method; and decorative laminates employing the decorative sheet are described. | |
