Stabilization of vinyl resins with tetrahydropyrans and organic metal salts

Claim 1

A COMPOSITION OF MATTER COMPRISING (I) AN IRON-FREE POLYVINYL HALIDE RESIN SELECTED FROM THE GROUP CONSISTING OF (1) HOMOPOLYMERS OF VINYL CHLORIDE, (2) HOMOPOLYMERS OF VINYL BROMIDE, (3) HOMOPOLYMERS OF VINYLIDENE CHLORIDE, (4) COPOLYMERS OF VINYL CHLORIDE CONTAINING IN AN AMOUNT UP TO ABOUT 20% BY WEIGHT OF SAID COPOLYMER OF AT LEAST ONE ETHYLENICALLY UNSATURATED MONOMER COPOLYMERIZABLE THEREWITH SELECTED FROM THE GROUP CONSISTING OF VINYL ACETATE, STYRENE, DIETHYL MALEATE, MALEIC ANHYDRIDE, ESTERS OF ACRYLIC ACID AND VINYLIDENE CHLORIDE, (5) COPOLYMERS OF VINYL BROMIDE CONTAINING IN AN AN AMOUNT UP TO ABOUT 20% BY WEIGHT OF SAID COPOLYMER OF AT LEAST ONE ETHYLENICALLY UNSATURATED MONOMER COPOLYMERIZABLE THEREWITH SELECTED FROM THE GROUP CONSITING OF VINYL ACETATE, STYRENE, DIETHYL MALEATE, MALEIC ANHYDRIDE, ESTERS OF ACRYLIC ACID AND VINYLIDENE CHLORIDE, AND (6) COPOLYMERS OF VINYLIDENE CHLORIDE CONTAINING IN AN AMOUNT UP TO ABOUT 20% BY WEIGHT OF SAID COPOLYMER OF AT LEAST ONE ETHYLENICALLY UNSATURATED MONOMER COPOLYMERIZABLE THEREWITH SELECTED FROM THE GROUP CONSISTING OF VINYL ACETATE, STYRENE, DIETHYL MALEATE, MALEIC ANHYDRIDE, ESTERS OF ACRYLIC ACID AND VINYL CHLORIDE AND (II) AS A STABILIZER THEREFOR, PRESENT IN STABILIZING AMOUNTS, A MIXTURE INCLUDING (1) AT LEAST ONE TETRAHYDROPYRAN SELECTED FROM THE GROUP CONSISTING OF (A) 3,3,5,5-TETRAKIS (HYDROXYMETHYL)-TETRAHYDROPYRANOL-4, (B) 2 - HYDROXYMETHYL - 3,4,5 - TRIHYDROXY6-ALKOXY TETRAHYDROPYRANS WHEREIN SAID ALKOXY SUBSTITUENT CONTAINS FROM ONE TO FOUR CARBONS ATOMS, (C) ESTERS OF SAID (A) AND (B) WHICH ARE THE REACTION PRODUCTS OF SAID (A) AND (B) WITH AN ORGANIC ACID SELECTED FROM THE GROUP CONSISTING OF ALKPHATIC SATURATED AND UNSATURATED ACIDS HAVING FROM 2 TO 22 CARBON ATOMS AND (D) ETHERS OF SAID (A) AND (B) WHICH ARE THE REACTION PRODUCTS OF SAID (A) AND (B) WITH FROM ONE TO ABOUT 15 MOLS OF AN ALKYLENE OXIDE SELECTED FROM THE GROUP CONSISTING OF ETHYLENE OXIDE, PROPYLENE OXIDE AND BUTYLENE OXIDE WITH THE PROVISO THAT SAID ESTER (C) AND SAID ETHER (D) HAVE PRESENT AT LEAST TWO HYDROXYL GROUPS, AND (2) AT LEAST ON METAL ORGANIC SALT, THE CATIONIC PORTION THEREOF BEING SELECTED FROM THE GROUP CONSISTING OF THE CALCIUM BARIUM, STRONTIUM, MAGNESIUM, ZINC, CADMIUM, MERCURY, TIN AND LEAD AND ANIONIC PORTION THEREOF BEING SELECTED FROM THE GROUP CONSISTING OF SATURATED AND UNSATURATED FATTY ACIDS HAVING FROM TWO TO EIGHTEEN CARBON ATOMS, NAPHTHENIC ACIDS, ROSIN OIL, ROSIN AND MIXTURES THEREOF, SAID TETRAHYDROPYRAN AND METAL ORGANIC SAIT BEING PRESENT IN A WEIGHT RATIO OF FROM ABOUT 5:1 TO 1:5.