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. 13, 1983
Filed:
Feb. 24, 1982
Applicant:
Inventors:
Gert Jabs, Odenthal, DE;
Manfred Dahm, Levenkusen, DE;
Artur Haus, Overath, DE;
Ulrich Nehen, Leverkusen, DE;
Klaus Rath, Leverkusen, DE;
Norbert Weimann, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41M / ; B41L / ;
U.S. Cl.
CPC ...
4283206 ; 106 21 ; 106 22 ; 106 27 ; 282 275 ; 427150 ; 427151 ; 427152 ; 4283211 ; 4283215 ; 428914 ;
Abstract
The invention relates to a pressure-sensitive, carbonless copying system and to a process for the production of pressure-sensitive, carbonless copying system wherein a non-aqueous, substantially solvent free printing ink containing micro-capsules which contain dye-precursors, is applied by wet and dry offset and book printing techniques to all or part of at least one surface of a paper substrate; and to printing inks comprising