63 research outputs found
Research on Modified Rubbers. Part V. Technological Properties of Chlorinated Rubbers from Latex
Abstract
Bloomfield and Farmer, in a paper on “The Preparation of Chlorinated Rubbers from Latex” (J. Soc. Chem. Ind., 53, 43 (1934); Rubber Chem. and Tech., 7, 320 (1934)) have described the chief chemical properties of the products prepared by them. The object of the present paper is to describe briefly some characteristics of these products from the technological standpoint. It will be remembered that, although Bloomfield and Farmer were able to prepare a soluble chlorohydrin from one batch of latex, all other batches yielded insoluble products, although some modification of this insolubility was attained by the addition of serum from the satisfactory latex to those latices which were refractory in this regard. Moreover, the latex which yielded soluble products at first, subsequently no longer did so. Similarly the products from the initially satisfactory latex, at first soluble, underwent a gradual change, becoming less and less soluble. The technical examination of the chlorohydrin from latex therefore proved to be difficult. However, as it was thought possible that a method producing substances of more or less consistent composition and solubility might be later developed, the soluble product referred to was examined from the point of view of ascertaining its suitability as a basis for lacquers, moldings, plastic masses and films.</jats:p
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