Desensitizer compositions

Details Desensitizer compositions Desensitizer compositions

1981-10-16

1983-10-25

Brown, J. Travis

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

282 275, 427261, 4283204, 4283206, 4283208, 523137, 523160, 523161, 524105, C09D 1100

Patent

active

044116993

ABSTRACT:
A desensitizer composition containing the amidine derivative shown by following general formula can be effectively used for partially desensitizing a developer sheet of pressure-sensitive copying papers using diphenylamine series color formers: ##STR1## wherein R.sub.1 is a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, or an aryl group having 6 to 20 carbon atoms; R.sub.2 is a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an amino group, or an alkylthio group having 1 to 20 carbon atoms; and n is an integer of 2 to 6; said R.sub.1 and R.sub.2 may have a substituent and when both R.sub.1 and R.sub.2 are an alkyl group, at least one of R.sub.1 and R.sub.2 is an alkyl group having a substituent.

REFERENCES:
patent: 4012538 (1977-03-01), Miyamoto et al.
patent: 4066570 (1978-01-01), Boller et al.
patent: 4195103 (1980-03-01), Chang

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