Clay pigment for coating paper

Details Clay pigment for coating paper Clay pigment for coating paper

1978-12-20

1980-12-23

Lusignan, Michael R.

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

106 72, 106288B, 260 174ST, 427361, 427391, 427395, 428514, 428533, B05D 302, B05D 312, B32B 2308, B32B 2710

Patent

active

042411424

ABSTRACT:
A novel clay pigment, the manufacture thereof and the use of the pigment in the production of dull and matte-finish coated printing papers. The novel clay pigment comprises a mixture of a coarse-size fraction of naturally-occurring kaolin clay containing a substantial proportion of kaolinite booklets in the particle size range of 2 to 5 .mu.m equivalent spherical diameter (e.s.d.) and mechanically delaminated kaolin platelets in the particle size range of 2 to 10 .mu.m e.s.d.

REFERENCES:
patent: 3171718 (1965-03-01), Gunn et al.
patent: 3635662 (1972-01-01), Lyons
patent: 3816153 (1974-06-01), Zentz
patent: 4125411 (1978-11-01), Lyons

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