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:
Mar. 06, 2018
Filed:
Jun. 22, 2012
Pekka Johannes Salminen, Freienbach, CH;
Marco Edoardo Ahtinen, Zürich, CH;
Arthas Bing Yang, Shanghai, CN;
Pekka Johannes Salminen, Freienbach, CH;
Marco Edoardo Ahtinen, Zürich, CH;
Arthas Bing Yang, Shanghai, CN;
Styron Europe GMBH, Horgen, CH;
Abstract
A coated paperboard () comprising: a base substrate () having a brightness of about 65 or less measured using TAPPI T452 and a coating () on at least one side of the base substrate, wherein the base substrate comprises: one or more opaque layers () including a white filler, wherein the opaque layer covers the base substrate so that visibility of the base substrate through the opaque layer is substantially eliminated; a barrier layer () covering the opaque layer; wherein the barrier layer substantially prevents aqueous fluids from contacting the opaque layer, and wherein the coated paperboard has a brightness on the side of the base substrate with the coating of about 65 or more measured using TAPPI T452, and a wet brightness drop, on the side of the base substrate with the coating, of about 30 or less, measured using the wet brightness drop test.