Compositions: coating or plastic – Coating or plastic compositions – Carbohydrate or derivative containing
Patent
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
Brunsman David
Minerals Technologies Inc.
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