Abstract: A liquid microemulsion stabilizer for chlorinated polymers composition for stabilizing halogen-containing polymer comprising: a) a microemulsion of an overbased metal carbonate/carboxylate obtained from the reaction of an oxide and/or hydroxide of a metal selected from the group consisting of sodium, potassium, calcium, magnesium, zinc and mixtures thereof, an aliphatic carboxylic acid in which the aliphatic moiety contains up to about 30 carbon atoms and carbon dioxide in the presence of a solvent for the aliphatic carboxylic acid, a promoter and a microemulsion-forming amount of surfactant; and, b) an organotin stabilizer.

Abstract: A metal carbonate/carboxylate microemulsion imparting static and dynamic thermal stability to a halogen-containing polymer is provided which comprises (a) a metal carbonate/carboxylate obtained from the reaction of an oxide and/or hydroxide of a metal selected from the group consisting of sodium, potassium, calcium, magnesium, zinc and mixtures thereof and an aliphatic acid in which the aliphatic moiety contains up to about 30 carbon atoms and carbon dioxide in an oil;

Abstract: This invention relates to positive working photosensitized sheet constructions which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image. The construction is useful as a color proofing film which can be employed to predict the image quality from a lithographic printing process. The element is composed of a substrate, colored photosensitive layer and adhesive layer. The adhesive layer contains an optical brightener compound which reduces residual yellow staining derived from the naphthoquinone diazide sensitizer.