Abstract: The invention relates to a composition containing high molecular weight organotin maleates as obtained by reacting a high molecular alcohol or epoxyalkane with maleic anhydride and by then bringing the mixture thus obtained into contact with a dialkyltin oxide.The invention also relates to the poly(vinyl chloride) (PVC) compositions stabilized using the said composition based on high molecular weight organotin maleates and also to the extruded rigid items formed from the said PVC compositions.

Abstract: Non-toxic polymeric compositions suitable for use in the handling and packaging of foods, beverages or pharmaceuticals, or for use in medical devices, are stabilized against thermal and oxidative degradation with a organosulfide antioxidant having no more than 5 parts per million of free mercaptan groups.

Abstract: A composition comprises a thermoplastic or polymeric resin; an organic peroxide; and an organic sulfide antioxidant represented by Formula I, II or III: ##STR1## wherein m, n, r, R.sup.1, R.sup.2, R.sup.3, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are as set forth in the Summary of the Invention.

Abstract: The present invention is directed to a composition comprising a polymeric engineering resin selected from the group consisting of polycarbonates, polyarylethers, polyamides, polyesters, polyacetals, polyaryl sulfides, cellulose esters and styrene copolymers; and an amount of an organic sulfide antioxidant sufficient to stabilize the resin against oxidative or thermal degradation during processing and use, the organic sulfide antioxidant being represented by Formula I, II, or III: ##STR1## wherein m, n, R, R.sup.1, R.sup.2, R.sup.3, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are as set forth in the Summary of the Invention.

Abstract: The present invention is a composition comprising crosslinked polyolefin resins and an amount of organic sulfide antioxidants sufficient to stabilize the resin against thermal or oxidative degradation, wherein the organic sulfide antioxidant is represented by Formula I, II or III ##STR1## wherein m, n, R, R.sup.1, R.sup.2, R.sup.3, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are as set forth in the Summary of the Invention.

Abstract: Organic sulfide antioxidants useful for stabilizing polyolefins against oxidative and thermal degradation during processing and use represented by Formula I: ##STR1## wherein n is an integer of 2 to 15;R is a substituted or unsubstituted alkyl group of 2 to 30 carbons, a substituted or unsubstituted cycloalkyl group of 5 to 20 carbons a substituted or unsubstituted alkyl group of 2 to 30 carbons where any of up to 6 carbon atoms are replaced with an O or S heteroatom, a substituted or unsubstituted cycloalkyl group of 5 to 20 carbons where any of up to 6 carbon atoms are replaced with an O or S heteroatom, with the proviso that the heteroatoms must be separated from each other and from the portion of the compound to which the R group is bonded by at least one carbon atom, the substituents for R being --OH, --SR.sup.4 or -- OR.sup.4, wherein R.sup.4 is an alkyl group of 1 to 30 carbons or a cycloalkyl group of 5 to 20 carbons;R.sup.1 and R.sup.2 are independently H or an alkyl group of 1 to 4 carbons; andR.

Abstract: Alkyl aryl sulfones of the formula R--SO.sub.2 --AR--Y.sub.n, wherein Ar is an aryl compound, Y is a substituent on the aryl compound and R is alkyl or cycloalkyl, and liquid mixtures of positional isomers of the same are prepared by reacting an aryl compound of the formula Ar--Y.sub.n, with an alkyl sulfonic acid of the formula R--SO.sub.3 H and a phosphorus reagent, preferably under heat. Particularly good yields and pure products are obtained using phosphorus pentoxide. Alkyl aryl sulfones produced by this method are a liquid mixture preferably containing at least two positional isomers, wherein no isomer is present in an amount of more than about 50% of the isomer mixture.

Abstract: Polyolefins are stabilized against the harmful effects of U.V.-light by incorporating therein certain organosulfides. The organosulfides may be used alone or in synergistic combination with two classes of known light stabilizers, namely the benzophenones and the esters of aromatic acids.

Abstract: A dielectric medium composition comprising a fluorine-containing amide or a fluorine-containing sulfonamide and capacitors or other electric devices incorporating said composition, are disclosed herein.

Abstract: Compounds having the formula ##STR1## where R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 are independently selected from hydrocarbons, n is an integer of 1 to 15, and Y is H, OH, O, R where R is a hydrocarbon are useful as stabilizers for polymers against the detrimental effects produced by exposure to actinic radiation, such as visible or ultraviolet light rays.