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:
Nov. 18, 2008
Filed:
Jun. 21, 2005
David E. Fish, Bellevue, WA (US);
Michael J. Dougherty, Roy, WA (US);
Dwayne M. Shearer, Seattle, WA (US);
Amar N. Neogi, Kenmore, WA (US);
David E. Fish, Bellevue, WA (US);
Michael J. Dougherty, Roy, WA (US);
Dwayne M. Shearer, Seattle, WA (US);
Amar N. Neogi, Kenmore, WA (US);
Weyerhaeuser Company, Federal Way, WA (US);
Abstract
The barrier properties of a water soluble gas barrier material are improved if the material is blended with a nanoparticle calcium carbonate having a size of from 10 to 250 nanometers. The barrier material is on a substrate to provide a substrate with gas barrier properties. A layer of heat sealable material may be applied to the exposed surface of the barrier material. A method for making the barrier coated substrate is disclosed.