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:
May. 05, 2015
Filed:
Jan. 09, 2013
E I Du Pont DE Nemours and Company, Wilmington, DE (US);
Mitchell Scott Chinn, Wilmington, DE (US);
Franck Andre Vanhecke, Lebbeke, BE;
E I du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
The disclosure provides a dispersion for making décor paper having improved optical performance without negatively impacting mechanical strength comprising a TiOparticle slurry comprising a treated TiOparticle having a surface area of at least about 30 m/g, and a cationic polymer; wherein the treatment comprises an oxide of silicon, aluminum, phosphorus or mixtures thereof; and the treatment is present in the amount of at least 15% based on the total weight of the treated titanium dioxide particle; paper pulp; and a cationic polymer; wherein the cationic polymer in the slurry and the cationic polymer in the dispersion are compatible; wherein for equal optical performance, the amount of treated TiOparticle in the dispersion is reduced by about 10% when compared to a dispersion not comprising the treated TiOparticle of (a). These dispersions are useful in making décor paper that may be used in paper laminates.