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:
Jul. 16, 2002
Filed:
Jun. 12, 2000
Applicant:
Inventor:
Louis Robert Dragner, Rock Hill, SC (US);
Assignee:
Omnova Solutions Inc., Fairlawn, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 1/706 ; D21H 1/707 ; D21H 2/114 ;
U.S. Cl.
CPC ...
D21H 1/706 ; D21H 1/707 ; D21H 2/114 ;
Abstract
A novel method of opacifying paper, and a novel opacifier and opacifying composition which opacify as well as brighten paper, is provided. The novel opacifier comprises at least one diglyceride and at least one amino-ester compound. The opacifying composition comprises: solids and preferably water. The solids comprise opacifier and surfactant. Preferably, the opacifying composition is an emulsion of the solids in water.