Color developer for pressure-sensitive recording paper and produ

Details Color developer for pressure-sensitive recording paper and produ Color developer for pressure-sensitive recording paper and produ

1989-01-27

1990-04-24

Kight, III, John

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528160, C08G 828, C08G 832

Patent

active

049201859

ABSTRACT:
The present invention relates to a polyvalent metal-bound carboxyl-modified p-substituted phenol-xylene-formaldehyde resin composition produced by binding with a polyvalent metal a p-substituted phenol-xylene-formaldehyde co-condensate containing a carboxyl group, to produce a color developer for pressure-sensitive recording paper. The polyvalene metal is selected from the group magnesium, aluminum, calcium, cadmium, zinc, nickel and manganese.

REFERENCES:
patent: 4216299 (1980-08-01), Kikuga et al.
patent: 4216300 (1980-08-01), Kikuga et al.
patent: 4379897 (1983-04-01), Asano et al.
patent: 4400492 (1983-08-01), Asano et al.
patent: 4604436 (1986-08-01), Thorpe et al.
patent: 4612254 (1986-09-01), Ginter et al.

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