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:
Jun. 03, 2008
Filed:
Oct. 31, 2006
Applicants:
Benny J Skaggs, Springboro, OH (US);
Chris Wilson, Middletown, OH (US);
Inventors:
Benny J Skaggs, Springboro, OH (US);
Chris Wilson, Middletown, OH (US);
Assignee:
International Paper Company, Memphis, TN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 19/12 (2006.01); D21H 19/42 (2006.01); D21H 19/54 (2006.01); C09D 103/02 (2006.01); C09D 103/08 (2006.01); C09D 103/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a process for applying optical brightening agent (OBA) to a sheet of paper or paperboard substrate. The process comprises applying the composition comprising a cooked starch and a powdered optical brightener to at least one surface of a paper or paperboard substrate at the size press in a paper or paperboard manufacturing process to form a sized paper or paperboard substrate; and drying the sized paper or paperboard substrate to form a dried sized paper or paperboard substrate.