Decorative sheet for solid color laminates
Patent 4044185 Issued on August 23, 1977. Estimated Expiration Date: 
August 23, 1994. 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.
August 23, 1994. 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 1672988 2168560 3123515 3372084 3730828 InventorsAssigneeApplicationNo. 05/542311 filed on 01/20/1975US Classes:428/153, Paper162/128, Inorganic additive162/185, Part added to furnish or pulp162/188, Non-uniform internal structure428/325, Glass or ceramic (i.e., fired or glazed clay, cement, etc.) (porcelain, quartz, etc.)428/328, Heavy metal or aluminum or compound thereof428/330, Alkali metal or alkaline earth metal or compound thereof428/530, Paper428/531PhenoplastExaminersPrimary: Lesmes, George F.Assistant: Silverman, S. Attorney, Agent or FirmAbstractA colored decorative plastic laminate is made from a core layer and a superimposed decorative layer comprising: a fibrous material, coloring particles having a Moh's hardness of up to about 6 and an average particle size range of between about 53 to 210 microns, and thermoset resin; where the weight ratio of fiber material:coloring particles is from about 1:0.04 to 1:0.4 and the colored decorative layer is characterized in that the pigments are dispersed only through the bottom two-thirds of the colored layer and concentrated in the colored layer near the core-decorative layer interface, the top one-third of the colored layer containing substantially no pigment particles. | |
