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:
Aug. 26, 1997
Filed:
May. 20, 1996
Applicant:
Inventors:
David C Villiger, Greenville, SC (US);
Aiying Wang, Simpsonville, SC (US);
Jeffery H Banning, Spartanburg, SC (US);
Wayne A Chandler, Mauldin, SC (US);
Barry W Chadwick, Simpsonville, SC (US);
Assignee:
BIC Corporation, Milford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09D / ;
U.S. Cl.
CPC ...
523161 ; 523200 ; 523205 ; 524458 ; 524460 ; 260D / ; 401209 ; 106 3132 ; 106 3145 ;
Abstract
An erasable ink composition contains an aqueous dispersion of water-insoluble polymer-encapsulated colorant obtained from the emulsion polymerization of at least one hydrophobic emulsion-polymerizable monomer with at least a portion of the monomer containing colorant dissolved therein. The ink is intended for use in any of a variety of marking instruments, in particular, a ball-point pen.