Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent
1993-12-10
1995-10-17
Bell, Mark L.
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
106400, 106401, 106416, 106436, 106437, 106457, C09C 102
Patent
active
054586798
ABSTRACT:
The disclosed invention relates to a composition comprising finely divided cationically charged particles of an inorganic material treated with at least one of anionic polysaccharide or anionically modified polysaccharide. The disclosed invention further relates to a method of providing paper of improved strength. The method entails providing finely divided particles of inorganic material, treating the particles with at least one of anionic polysaccharide or anionically modified polysaccharide, and adding the treated particles to cellulose fiber during an alkaline process for making paper. Also, an alkaline paper comprising the finely divided particles of inorganic material treated with at least one of anionic polysaccharide or anionically modified polysaccharide is disclosed.
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Derwent abstract AN 90-356393 of EP 399,775, Clare et al., "Paper size compsn. prepn.-from gum, alginate, starch, PVA or CMC and water.", Jan. 1990.
Derwent abstract AN 79-70393B; GB 2,016,498, Brooks et al., "Filler flocculating compsn. for paper making-comprising starch, organic polyelectrolyte, and agent to regulate the mobility of dispersion.", Sep. 1979.
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Bell Mark L.
Hertzog Scott L.
Minerals Technologies Inc.
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