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:
Dec. 19, 2000
Filed:
Jun. 22, 1999
Applicant:
Inventors:
Mahendra K Sharma, Kingsport, TN (US);
Richard Hsu-Shien Wang, Parsippany, NJ (US);
James J Krutak, Kingsport, TN (US);
Assignee:
Eastman Chemical Company, Kingsport, TN (US);
Primary Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
525170 ; 25230121 ; 25230135 ; 524516 ;
Abstract
The present invention provides acrylic polymer-optical brightener compositions. The invention also provides acrylic polymer-optical brightener compositions further comprising near infrared absorbing compounds. The invention also provides processes for making such compositions. Still further, the invention provides methods for detecting and/or separating fluorescing and/or near infrared emitting articles from non-fluorescing and/or non-near infrared emitting articles.