Pressure sensitive recording materials

Details Pressure sensitive recording materials Pressure sensitive recording materials

1981-03-09

1983-04-12

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

282 275, C09D 1100

Patent

active

043797210

ABSTRACT:
The present invention relates to a pressure-sensitive recording material ing improved storability, lightfastness and heat resistance, which comprises a unit containing a dye precursor or its solution and a unit containing a dye acceptor material which is capable of color formation by reaction with the dye precursor. The pressure-sensitive recording material according to the invention is characterized in that the dye acceptor material is an intimate mixture comprising
(a) a 2-hydroxy-benzophenone of the general formula I ##STR1## or 3,5,7,3',4'-pentahydroxy-flavone of the formula II ##STR2## (b) a substituted benzotriazole of the general formula III ##STR3## and, optionally, an inert waxy binder. The invention further relates to further embodiments of this recording material with improved properties as well as process for producing the pressure-sensitive recording materials according to the invention.

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