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:
Sep. 02, 1997
Filed:
Aug. 24, 1995
Applicant:
Inventors:
Charles Elwood Jones, Yardley, PA (US);
Rafael Gonzalez Aviles, Harleysville, PA (US);
David Michael Fasano, Maple Glen, PA (US);
Martin Vogel, Jenkintown, PA (US);
Assignee:
Rohm and Haas Company, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ;
U.S. Cl.
CPC ...
523105 ; 523122 ; 523201 ; 5147723 ; 424 60 ; 424 7808 ; 424419 ; 424501 ; 424642 ;
Abstract
A method is disclosed for improving the UV radiation absorption of a composition containing a UV radiation absorbing agent by adding from about 0.1 weight percent to about 50 weight percent of latex particles, based on total weight nonvolatiles. The latex particles contain a void and have a particle size of from about 100 nm to about 380 nm.