Processing of rubber and the like, and to processing compositions therefor

Claim 1

An anti-tack composition as defined in claim 1 wherein: said at least one fatty acid has at least one double bond and 18 carbon atoms in the form of a water soluble salt.

Claim 9

A method of making a liquid anti-tack composition comprising the steps of: a. heating a water base to an elevated temperature sufficient to effect saponification of a mixture of oleine oil and a caustic alkali, b. adding to said heated water base oleine oil and a caustic alkali, c. maintaining the mixture thereby formed at said elevated temperature for a time sufficient to saponify the oleine oil and to convert substantially the whole of the fatty acid content thereof into the corresponding alkali metal salt to produce a soap solution, d. adding to said soap solution a synthetic detergent selected from the group consisting of a water soluble salt of an alkyl ether sulphate and a water soluble salt of an alkyl alcohol sulphate, e. completely mixing said soap solution and said synthetic detergent while said elevated temperature is maintained by continued heating, f. adding to the mixture a colloidal clay constituent including at least a strong gelling grade of bentonite in an amount effective to produce a stable aqueous colloidal dispersion, g. agitating the mixture fully to disperse said colloidal clay constituent and continuing said agitation at said elevated temperature for a time sufficient to establish a stable homogeneous colloidal dispersion, h. controlling the pH of the mixture to maintain slightly alkaline conditions, and i. cooling the mixture with continued agitation until ambient temperature is attained.