Solvent for chromogenic dye-precursor material for pressure-sens

Details Solvent for chromogenic dye-precursor material for pressure-sens Solvent for chromogenic dye-precursor material for pressure-sens

1986-10-03

1987-10-13

Yarbrough, Amelia Burgess

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 32, 106311, 252364, 346213, C09D 1100

Patent

active

046996591

ABSTRACT:
Disclosed herein are a solvent for a chromogenic dye-precursor material for a pressure-sensitive recording paper sheet, comprising (1) 30 to 80% by weight of p-monoisopropylbiphenyl or a biphenyl mixture of not less than 80% by weight of p-monoisopropylbiphenyl, not more than 20% by weight of m-monoisopropylbiphenyl and not more than 10% by weight of diisopropylbiphenyl, and (2) 70 to 20% by weight of diisopropylnaphthalene or a naphthalene mixture of not less than 97% by weight of diisopropylnaphthalene, not more than 1% by weight of monoisopropylnaphthalene and not more than 2% by weight of triisopropylnaphthalene, and a pressure-sensitive recording paper sheet prepared by using the solvent.

REFERENCES:
patent: 3979324 (1976-09-01), Herber
patent: 4440846 (1984-04-01), Sanders et al.

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