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:
May. 21, 1991
Filed:
Jun. 01, 1989
Nobuo Kanda, Neyagawa, JP;
Ritsuo Mandoh, Sakai, JP;
Masaharu Nojima, Amagasaki, JP;
Naoto Arai, Ikeda, JP;
Kanzaki Paper Manufacturing Company, Limited, Tokyo, JP;
Abstract
A heat sensitive recording material comprising a substrate and a heat sensitive recording layer thereon incorporating a colorless or light-colored basic dye and a color acceptor reactive with the dye to form a color when contacted therewith, the recording material being characterized in that the material has a heat sensitive recording layer having incorporated therein (1) a heat-fusible substance exhibiting a weight reduction of at least 5% at 200.degree. C. based on the weight at 25.degree. C. under the condition of 20.degree. C./min in the rate of rise of temperature, (2) a wax, (3) a lubricant, and (4) an oil-absorbing pigment at least 85 ml/100 g in oil absorption.