Process for producing cationic latexes

Details Process for producing cationic latexes Process for producing cationic latexes

1975-11-06

1977-12-20

Welsh, M. J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 297M, 260 297N, C08L 910

Patent

active

040640850

ABSTRACT:
A process for producing cationic synthetic rubber latexes by the emulsion polymerization of a conjugated diene or a conjugated diene and a comonomer copolymerizable with the conjugated diene, wherein the polymerization is carried out in the presence of a cationic emulsifier consisting of one or more organic or inorganic acid salts of a .beta.-hydroxy- or .beta.-hydroxymethyl-alkylpolyamine of the general formulae: ##STR1## wherein X is a hydroxyl or hydroxymethyl group, R.sub.1 is a hydrogen atom or an alkyl group of 1 to 20 carbon atoms, R.sub.2 is a hydrogen atom or an alkyl group of 1 to 20 carbon atoms, R.sub.1 + R.sub.2 together contain 8 to 20 carbon atoms, and n is an integer of 1 to 3, an ethylene oxide and/or propylene oxide adduct thereof, or an organic or inorganic acid salt of such an adduct, or a mixture thereof, and in the presence of colloidal alumina.

REFERENCES:
patent: 2700686 (1955-01-01), Dickey et al.
patent: 2887460 (1959-05-01), Dibert et al.
patent: 3660324 (1972-05-01), Onchi et al.
patent: 3905932 (1975-09-01), Nakazawa et al.
patent: 3954873 (1976-05-01), Gipson
Zasshi, J. of the Chemical Society of Japan, Industrial Chem. Section, vol. 68, No. 5, 1965, pp. 956-960.

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