No abstract

Class 1. The full eq 1 was used to represent all lubricant properties with X3 = molar concentration of C9 (cf. Table II) .Class 2. The full eq 1 was used to represent all lubricant properties with X3 = molar concentration of Cg (cf. Table III) .Class 3. The full eq 1 was used to represent all lubricant properties, except -40 °F viscosity, with X3 = molar concentration of (Cg + C9). A more limited model had to be used for the -40 °F viscosity representation because only 7 data points were obtained (cf. Table IV where four of the lubricants became solid at -40 °F), and there are 10 coefficients to be estimated in eq 1. The limited model does not include the terms with coefficients Bvi, B%3, Bn, or £33.

No abstract

Starch was added as a filler to polyvinyl chloride (PVC) formulations to produce plastics that are potentially biodegradable. The most uniform and transparent plastics resulted when the filler was added either by coprecipitating a cross-linked starch xanthate-PVC emulsion or by concentrating a starch-PVC emulsion to produce a dry mixture of the two components. Physical properties of the plastics closely parallel those containing inorganic fillers, except for improved clarity. The starch-filled plastics were readily attacked by a mixture of microorganisms commonly occurring in soil.