Developing composition and a sheet for pressure-sensitive copy p

Details Developing composition and a sheet for pressure-sensitive copy p Developing composition and a sheet for pressure-sensitive copy p

1988-03-18

1989-06-13

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528129, 528139, 528144, 528153, 528155, 528230, 528236, C08G 804, C08G 1404

Patent

active

048394572

ABSTRACT:
A developing composition and a sheet for a pressure-sensitive copy paper comprising a phenolic resin as a main component which is obtained by condensating with formaldehyde using a p-substituted phenol with a 2,4-di-substituted and/or 2,6-di-substituted phenol, and zinc oxide which may be added thereto, as occasion demands.

REFERENCES:
patent: 3672935 (1972-06-01), Miller et al.
patent: 3732120 (1973-05-01), Brockett et al.
patent: 4173684 (1979-11-01), Stolfo
patent: 4216299 (1980-08-01), Kikuga et al.
patent: 4216300 (1980-08-01), Kikuga et al.
patent: 4409374 (1983-10-01), Kikuga et al.
patent: 4412045 (1983-10-01), Kikuga et al.
patent: 4620874 (1986-11-01), Booth, Jr. et al.

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