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:
Feb. 12, 1980
Filed:
May. 25, 1978
Applicant:
Inventor:
Stanley E Rohowetz, Barrington, IL (US);
Assignee:
American Can Company, Greenwich, CT (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; G01K / ;
U.S. Cl.
CPC ...
428199 ; 8-4 ; 8 25 ; 73356 ; 116207 ; 428209 ; 428344 ; 428354 ; 428913 ; 428207 ;
Abstract
Adhesive tapes which change color in the presence of water or steam at elevated temperature are provided which are useful as sterilization indicators. The tapes comprise an adhesive layer and a polymeric base film containing on one surface thereof a coating of a thermotropic ink comprising a binder resin, a colorant which undergoes a color change in the presence of water or steam at elevated temperature, and a solvent for said binder resin and colorant.