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:
Jul. 13, 1982
Filed:
Mar. 16, 1981
Applicant:
Inventors:
Dietrich J Bahr, Herrenberg, DE;
Marian Briska, Boblingen, DE;
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M / ; C09C / ;
U.S. Cl.
CPC ...
427146 ; 106241 ; 1062 / ; 3461351 ; 427 561 ;
Abstract
The lacquer contains a white pigment with a grain size bigger than all other pigments in the lacquer. This white pigment either changes its color itself under the influence of heat, or under the influence of heat with a substance coacting with the pigment. Preferably used is a natural or synthetic hard polymer, or in particular, calcium carbonate with an admixture of approximately 10% sodium glycolate.