Compositions: coating or plastic – Materials or ingredients
Patent
1976-05-03
1979-01-09
Douglas, Winston A.
Compositions: coating or plastic
Materials or ingredients
106309, C09C 128
Patent
active
041336941
ABSTRACT:
A method of improving opacity and brightness of paper containing synthetic sodium magnesium alumino silicate, sodium alumino silicate and silicic acid or silica pigments which utilizes reducing the structure of such pigments by hard media grinding.
REFERENCES:
patent: 2361059 (1944-10-01), Robertson
patent: 2581414 (1952-01-01), Hochberg
patent: 2855156 (1958-10-01), Hochberg et al.
Bertorelli Orlando L.
Fitton Robert C.
Douglas Winston A.
Flanders Harold H.
Howard J. V.
J. M. Huber Corporation
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