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. 06, 1976
Filed:
Jul. 08, 1975
Applicant:
Inventors:
Minoru Ozutsumi, Tokyo, JA;
Yoshihide Miyazawa, Tokyo, JA;
Masahiko Yamaguchi, Tokyo, JA;
Akio Watanabe, Fujimiya, JA;
Keiso Saeki, Fujimiya, JA;
Assignees:
Hodogaya Chemical Co., Ltd., Tokyo, JA;
Fuji Photo Film Co., Ltd., Minami-ashigara, JA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41M / ;
U.S. Cl.
CPC ...
282 275 ; 2602 / ; 2603403 ; 427151 ; 427152 ; 428323 ; 428411 ; 428914 ;
Abstract
A pressure-sensitive copying material comprising a support having thereon a microencapsulated color former capable of forming a distinct color when reacted with an electron-accepting solid, the microencapsulated color former comprising at least one benzoxazine derivative represented by the formula (Ia) ##SPC1## , a benzodioxane derivative represented by the formula (Ib) ##SPC2## And a mixture thereof, wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and X are as defined hereinafter.