Oxime ethers of 4,4'-bis(N,N-diethylamino)benzhydrol and pressure-sensitive recording systems containing them

Compounds of the formula: wherein R and R1 are alkyl C1-C4 are useful as color formers for pressure- and heat-sensitive copying materials.

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Bibliographic Details
Main Authors CESARK; FRANK F, THOMAS; DANIEL W
Format Patent
LanguageEnglish
Published 28.09.1982
Subjects
COLOUR PRINTING
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
LINING MACHINES
PERFORMING OPERATIONS
PRINTING
PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES
STAMPS
TECHNICAL SUBJECTS COVERED BY FORMER USPC
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS
TRANSPORTING
TYPEWRITERS
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Summary:Compounds of the formula: wherein R and R1 are alkyl C1-C4 are useful as color formers for pressure- and heat-sensitive copying materials.
Bibliography:Application Number: US19810297802