Bisulfite terminated oligomers as dispersing agents

Details Bisulfite terminated oligomers as dispersing agents Bisulfite terminated oligomers as dispersing agents

1976-09-23

1978-09-19

Brust, Joseph Paul

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260513R, 560151, C07C12138, C07C14312, C07C14302

Patent

active

041154355

ABSTRACT:
This invention relates to the use of bisulfite-terminated oligomers as dispersants for solid particulate matter, i.e., low molecular weight bisulfite-terminated polymers containing carboxylate groups and either cyano or carbomethoxy moieties are improved dispersants for solid particulate matter like pigments such as titanium dioxide, clay, calcium carbonate, talc, and zinc oxide, as well as for organic pigments. Particularly, these dispersants have been found useful for stabilizing paper coating compositions.

REFERENCES:
patent: 3646099 (1972-02-01), Dannals
patent: 3668230 (1972-06-01), Dannals
patent: 3719485 (1973-03-01), Ferro
patent: 3772382 (1973-11-01), Dannals
patent: 3839405 (1974-10-01), Dannals
patent: 4004939 (1977-01-01), O'Brien et al.
The Condensed Chem. Dictionary, 1966, pp. 911-912.

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