Treatment of inorganic pigments with carboxymethylcellulose comp

Details Treatment of inorganic pigments with carboxymethylcellulose comp Treatment of inorganic pigments with carboxymethylcellulose comp

1993-11-10

1996-02-20

Brunsman, David

Compositions: coating or plastic

Coating or plastic compositions

Carbohydrate or derivative containing

1061972, C09C 310, C09C 100, C09C 102

Patent

active

054925606

ABSTRACT:
The disclosed invention relates to a composition comprising finely divided particles of an inorganic material treated with a cellulose derivative modified by or containing at least one ionic substituent. The disclosed invention further relates to a method of providing paper of improved brightness. The disclosed invention also relates to a method of providing finely divided particles of inorganic material, treating the particles with a cellulose derivative modified by or containing at least one ionic substituent, 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 the cellulose derivative is disclosed.

REFERENCES:
patent: 2795509 (1957-06-01), van Zelst
patent: 3730830 (1973-05-01), Driscoll
patent: 4210488 (1980-07-01), Reuss et al.
patent: 4310360 (1982-01-01), Kvant

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