Foamed and solid rubber-starch graft copolymer compositions and

Details Foamed and solid rubber-starch graft copolymer compositions and Foamed and solid rubber-starch graft copolymer compositions and

1975-11-10

1977-01-25

Woodberry, Edward M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 174BB, 260742, C08L 306, C08L 702

Patent

active

040050408

ABSTRACT:
Starch graft copolymers are prepared in aqueous media by reacting soluble sodium starch xanthate with a polymerizable vinyl monomer and hydrogen peroxide. Foamed rubbers reinforced with starch graft copolymers are prepared, without the need for mechanical frothing, by conducting the starch graft polymerization reaction in the latex emulsion. Nonfoamed rubber compositions are prepared in a similar manner.

REFERENCES:
patent: 3359224 (1967-12-01), Fassinger et al.
patent: 3673136 (1972-06-01), Buchanan et al.
patent: 3730829 (1973-05-01), Maher

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