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. 04, 1978
Filed:
May. 25, 1976
Donald D Buerkley, Inver Grove Heights, MN (US);
Richard S Law, Newport, MN (US);
Minnesota Mining and Manufacturing Company, Saint Paul, MN (US);
Abstract
The disclosed moldable compositions contain a metal salt which is a coreactant for, preferably, one of the conventional iron/polyhydric phenol image-forming reactions. The metal salt is dissolved in a liquid plasticizer, and the liquid plasticizer is blended with solid waxes to form a solid, substantially non-toxic, non-hygroscopic, moldable waxy material which is non-softening under normal conditions but which can easily be shaped, hot-melt coated, or the like at temperatures above 60.degree. C. The composition is useful for making wax imaging crayons and sheet-like dispensing means for the metal salt imaging chemical.