Coat detection method
Patent 4250382 Issued on February 10, 1981. Estimated Expiration Date: 
August 14, 1999. 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 14, 1999. 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 ReferencesFluorimetric coat weight measurement Patent #: 3956630 InventorAssigneeApplicationNo. 06/066397 filed on 08/14/1979US Classes:250/302, RADIATION TRACER METHODS427/10, Electrical or optical427/157, FLUORESCENT OR PHOSPHORESCENT COATING427/411, Paper base427/8MEASURING, TESTING, OR INDICATINGExaminersPrimary: Dixon, Harold A.Attorney, Agent or FirmInternational ClassesG01N 21/91 (20060101)G01N 21/88 (20060101) G01N 21/64 (20060101) G01N 21/84 (20060101) G01N 21/86 (20060101) AbstractDisclosed is a method of detecting a cured silicone coating applied to a paper substrate or the like in web form, comprising adding an effective amount of a fluorescent pigment to the silicone coating formulation to be applied to the substrate, applying the coating to the substrate, curing the silicone coating, scanning the coated surface of the substrate with a UV light source, and detecting the fluorescence of the coating. Also disclosed is the coated paper product with which the method of the invention can be employed. | |
