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. 28, 2004
Filed:
Jun. 08, 2001
Applicant:
Inventors:
Qingping Chen, Simpsonville, SC (US);
Michael T. Nowak, Simpsonville, SC (US);
Assignee:
Bic Corporation, Milford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 1/118 ; C08L 7/504 ;
U.S. Cl.
CPC ...
C09D 1/118 ; C08L 7/504 ;
Abstract
A non-erasable ink composition suitable for use in writing instruments is described comprising an isocyanate five thermoplastic polyurethane resin, a colorant and an organic solvent. The ink composition may also include a second resin, plasticizers, antioxidants, corrosion inhibitors, lubricants, chemical dispersants, and surfactants. The inks of the present invention exhibit a smooth writing performance and non-seepage.