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

1987-03-26

1989-01-03

Yarbrough, Amelia Burgess

Compositions: coating or plastic

Materials or ingredients

Vehicles or solvents

106 21, 106 32, 252364, 503213, C08K 501

Patent

active

047954930

ABSTRACT:
Disclosed herein are a substantially odorless solvent for a chromogenic dye-precursor material for a pressure-sensitive recording paper sheet, which comprises from 0 to 20% by weight of m-isopropylbiphenyl, from 40 to 75% by weight of p-isopropylbiphenyl and from 5 to 40% by weight of diisopropyldiphenyl, and a pressure-sensitive recording paper sheet comprising a colour-development sheet coated with microcapsules containing a dye solution which is composed of the chromogenic dye-precursor material and the substantially odorless solvent, and a colour-developer sheet.

REFERENCES:
patent: 3627581 (1977-12-01), Phillips
patent: 4130299 (1978-12-01), Wygant
patent: 4536220 (1985-08-01), Kondo et al.
patent: 4684574 (1987-08-01), Pietsch et al.
patent: 4699658 (1987-10-01), Okada et al.
patent: 4699659 (1987-10-01), Okada et al.
I.E.C. Product Research and Development, vol. 8, No. 3, pp. 237-241 (1969).

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