GB434783A - Manufacture of products of polymerisation - Google Patents

Abstract

Polymerization products are manufactured by effecting polymerization in the presence of an indifferent organic liquid diluent which does not dissolve the polymerization product, e.g. aliphatic hydrocarbons, alcohols or ethers, and in the presence of an emulsifying agent, e.g. compounds of high molecular weight such as synthetic or natural resins, wax, or derivatives of cellulose or other hydroxy-compounds of high molecular weight, e.g. hydroxyalkylated cellulose. The product remains in the form of an emulsion, which may be used directly, e.g. for impregnating purposes, or separates in a finely divided form. The process is applicable to the polymerization of individual monomeric compounds, e.g. butadiene, vinyl chloride or chloracetate, or of mixtures of monomeric compounds, e.g. of maleic anhydride with styrene or vinyl butyl ether. In examples: (1) maleic anhydride and styrene are heated in the presence of benzine and the reaction product of dodecylic alcohol with ethylene oxide; (2) maleic anhydride and vinyl butyl ether are heated with benzoyl peroxide in the presence of benzine and hydroxyethylated oleic acid; (3) vinyl chloride is heated in a bomb with benzoyl peroxide in the presence of benzine and the reaction product of ethylene oxide on a mixture of alcohols prepared by hydrogenation of coconut oil fatty acids; the resulting emulsion may be employed in the manufacture of coatings resistant to water, acid and alkalies; (4) vinyl chloracetate is heated with benzoyl peroxide in the presence of benzine and a solution of masticated rubber in benzene; the resulting suspension is suitable as a basis for a waterproof lacquer; (5) vinyl chloride is heated in a bomb with benzoyl peroxide in the presence of a mixture of benzine and alcohol and a solution of masticated rubber in benzene; the resulting emulsion may be used in the paint and varnish industry; (6) vinyl chloride and vinyl acetate are heated in a bomb with benzoyl peroxide in the presence of alcohol and the reaction product of castor oil with ethylene oxide; the resulting emulsion, with or without the addition of solvents, may be employed in the paint and varnish industry.ALSO:As coating-compositions may be employed emulsions of polymerization products obtained by effecting polymerization in the presence of an indifferent organic liquid diluent which does not dissolve the polymerization product, e.g. aliphatic hydrocarbons, alcohols or ethers, and in the presence of an emulsifying agent, e.g. compounds of high molecular weight such as synthetic or natural resins, wax, or derivatives of cellulose or other hydroxy compounds of high molecular weight, e.g. hydroxyalkylated cellulose. The process is applicable to the polymerization of individual monomeric compounds, e.g. butadiene, vinyl chloride or chloracetate, or of mixtures of monomeric compounds, e.g. of maleic anhydride with styrene or vinyl butyl ether. In examples: (1) vinyl chloride is heated with benzoyl peroxide in the presence of benzine and the reaction product of ethylene oxide on a mixture of alcohols prepared by hydrogenation of coconut oil fatty acids; the resulting emulsion may be employed in the manufacture of coatings resistant to water, acid and alkalies; (2) vinyl chloracetate is heated with benzoyl peroxide in the presence of benzine and a solution of masticated rubber in benzene; the resulting suspension is suitable as a basis for a waterproof lacquer; (3) vinyl chloride is heated with benzoyl peroxide in the presence of a mixture of benzine and alcohol and a solution of masticated rubber in benzene; the resulting emulsion may be used in the paint and varnish industry; (4) vinyl chloride and vinyl acetate are heated with benzoyl peroxide in the presence of alcohol and the reaction product of castor oil with ethylene oxide; the resulting emulsion, with or without the addition of solvents, may be employed in the paint and varnish industry.