Stabilizer systems and vinyl halide resin compositions containing same

Claim 2

A stabilizer system for vinyl halide resin compositions that comprises (a) a liquid, oil-soluble, epoxidized-vegetable oil-compatible overbased barium salt complex that is the product obtained by (i) forming a reaction mixture that consists essentially of (a) a basic barium compound, (b) an alkylphenol having from 1 to 3 alkyl groups, each of which has from 8 to 12 carbon atoms, and (c) an inert liquid organic diluent, in the amounts of at least 0.75 mole of said alkylphenol per mole of said barium compound and 10% to 50% by weight of said diluent, based on the weight of the reaction mixture, and (ii) maintaining said reaction mixture at a temperature of at least 180° C. while treating it with carbon dioxide to reduce its basicity; (b) at least one polyvalent metal salt selected from the group consisting of cadmium, zinc, zirconium, tin, and calcium salts of benzoic acid, alkylbenzoic acids, halobenzoic acids, hydroxybenzoic acids, and alkanoic acids having 2 to 22 carbon atoms; (c) at least one organic phosphite selected from the group consisting of secondary and tertiary aryl, alkyl, and alkyl aryl phosphites in which the alkyl groups have from 3 to 18 carbon atoms and the aryl groups are phenyl, alkylphenyl, halophenyl, or hydroxyphenyl; and (d) an aromatic or aliphatic hydrocarbon solvent, in the amounts of 0.1 part to 5 parts by weight of the polyvalent metal salt component, 0.1 part to 5 parts by weight of the organic phosphite component, and 0.1 part to 5 parts by weight of the hydrocarbon solvent per part by weight of the overbased barium salt complex.

Claim 3

A stabilizer system as set forth in claim 1 wherein the overbased barium salt complex is the product obtained by passing carbon dioxide through a reaction mixture that contains at least 0.85 mole of an alkylphenol per mole of said barium compound and 20% to 30% of said diluent, based on the weight of the reaction mixture, while the reaction mixture is maintained at a temperature of at least 180° C.

Claim 4

A stabilizer system as set forth in claim 1 wherein the overbased barium salt complex is the product obtained by passing carbon dioxide through a reaction mixture that contains 0.85 mole to 1.0 mole of a monoalkylphenol having 8 to 10 carbon atoms per mole of the barium compound while the reaction mixture is maintained at a temperature in the range of 185° C. to 250° C.

Claim 5

A stabilizer system as set forth in claim 1 wherein the alkylphenol used in the preparation of the overbased barium salt complex is nonylphenol.

Claim 6

A stabilizer system as set forth in claim 1 wherein the basic barium compound is selected from the group consisting of barium oxide, barium hydroxide, and hydrated barium hydroxide.

Claim 7

A stabilizer system as set forth in claim 1 that contains 1 part to 2 parts by weight of the polyvalent metal salt component, 1 part to 2 parts by weight of the organic phosphite component, and 0.8 part to 3 parts by weight of the hydrocarbon solvent per part by weight of the overbased barium salt complex.

Claim 8

A stabilizer system as set forth in claim 1 wherein the polyvalent metal salt component is a mixture of cadmium and zinc salts.

Claim 9

A stabilizer system as set forth in claim 1 wherein the organic phosphite component is a mixture of secondary and tertiary alkyl aryl phosphites.

Claim 10

A heat and light stable resinous composition that comprises a vinyl halide resin and from 0.2 part to 5 parts by weight per 100 parts by weight of said vinyl halide resin of a stabilizer system that comprises (a) a liquid, oil-soluble, epoxidized-vegetable oil-compatible overbased barium salt complex that is the product obtained by (i) forming a reaction mixture that consists essentially of (a) a basic barium compound, (b) an alkylphenol having from 1 to 3 alkyl groups, each of which has from 8 to 12 carbon atoms, and (c) an inert liquid organic diluent, in the amounts of at least 0.75 mole of said alkylphenol per mole of the barium compound and 10% to 50% by weight of said solvent, based on the weight of said reaction mixture, and (ii) maintaining said reaction mixture at a temperature of at least 180° C. while treating it with carbon dioxide to reduce its basicity; (b) at least one polyvalent metal salt selected from the group consisting of cadmium, zinc, zirconium, tin, and calcium salts of benzoic acid, alkylbenzoic acids, halobenzoic acids, hydroxybenzoic acids, and alkanoic acids having 2 to 22 carbon atoms; (c) at least one organic phosphite selected from the group consisting of secondary and tertiary aryl, alkyl, and alkyl aryl phosphites in which the alkyl groups have from 3 to 18 carbon atoms and the aryl groups are phenyl, alkylphenyl, halophenyl, or hydroxyphenyl; and (d) an aromatic or aliphatic hydrocarbon solvent, in the amounts of 0.1 part to 5 parts by weight of the polyvalent metal salt component, 0.1 part to 5 parts by weight of the organic phosphite component, and 0.1 part to 5 parts by weight of the hydrocarbon solvent per part by weight of the overbased barium salt complex.

Claim 11

A heat and light stable resinous composition that comprises a vinyl halide resin and from 0.2 part to 5 parts by weight per 100 parts by weight of said vinyl halide resin of a stabilizer system that comprises (a) a liquid, oil-soluble, epoxidized-vegetable oil-compatible overbased barium salt complex that is the product obtained by (i) forming a reaction mixture that consists essentially of (a) a basic barium compound, (b) an alkylphenol having from 1 to 3 alkyl groups, each of which has from 8 to 12 carbon atoms, and (c) an inert liquid organic diluent, in the amounts of at least 0.75 mole of said alkylphenol per mole of the barium compound and 10% to 50% by weight of said solvent, based on the weight of said reaction mixture, and (ii) maintaining said reaction mixture at a temperature of at least 180° C. while treating it with carbon dioxide to reduce its basicity; (b) at least one polyvalent metal salt selected from the group consisting of cadmium, zinc, zirconium, tin, and calcium salts of benzoic acid, alkylbenzoic acids, halobenzoic acids, hydroxybenzoic acids, and alkanoic acids having 2 to 22 carbon atoms; (c) at least one organic phosphite selected from the group consisting of secondary and tertiary aryl, alkyl, and alkyl aryl phosphites in which the alkyl groups have from 3 to 18 carbon atoms and the aryl groups are phenyl, alkylphenyl, halophenyl, or hydroxyphenyl; and (d) an aromatic or aliphatic hydrocarbon solvent, in the amounts of 0.1 part to 5 parts by weight of the polyvalent metal salt component, 0.1 part to 5 parts by weight of the organic phosphite component, and 0.1 part to 5 parts by weight of the hydrocarbon solvent per part by weight of the overbased barium salt complex.

Claim 12

A heat and light stable resinous composition as set forth in claim 9 that contains from 0.3 part to 3 parts by weight of said stabilizer system per 100 parts by weight of the vinyl halide resin.

Claim 13

A heat and light stable resinous composition as set forth in claim 9 wherein the vinyl halide resin is polyvinyl chloride.

Claim 14

A heat and light stable resinous composition as set forth in claim 9 wherein the overbased barium salt complex in the stabilizer system is the product obtained by passing carbon dioxide through a reaction mixture that contains at least 0.85 mole of an alkylphenol per mole of said barium compound and 20% to 30% of said diluent, based on the weight of the reaction mixture, while the reaction mixture is maintained at a temperature of at least 180° C.

Claim 15

A heat and light stable resinous composition as set forth in claim 9 wherein the overbased barium salt complex in the stabilizer system is the product obtained by passing carbon dioxide through a reaction mixture that contains 0.85 mole to 1.0 mole of a monoalkylphenol having 8 to 10 carbon atoms per mole of the barium compound while the reaction mixture is maintained at a temperature in the range of 185° C. to 250° C.

Claim 16

A heat and light stable resinous composition as set forth in claim 9 wherein the alkylphenol used in the preparation of the overbased barium salt complex component of the stabilizer system is nonylphenol.

Claim 17

A heat and light stable resinous composition as set forth in claim 9 wherein the basic barium compound is selected from the group consisting of barium oxide, barium hydroxide, and hydrated barium hydroxide.

Claim 18

A heat and light stable resinous composition as set forth in claim 9 wherein the stabilizer system contains 1 part to 2 parts by weight of the polyvalent metal salt component, 1 part to 2 parts by weight of the organic phosphite component, and 0.8 part to 3 parts by weight of the hydrocarbon solvent per part by weight of the overbased barium salt complex.

Claim 19

A liquid, oil-soluble, epoxidized-vegetable oil-compatible overbased barium salt complex that is the product obtained by (a) forming a reaction mixture that consists essentially of (i) a basic barium compound, (ii) an alkylphenol having from 1 to 3 alkyl groups each of which has from 8 to 12 carbon atoms, and (iii) an inert liquid organic diluent, in the amounts of at least 0.75 mole of said alkylphenol per mole of said barium compound and 10% to 50%, based on the weight of the reaction mixture, of the diluent, and (b) maintaining said reaction mixture at a temperature of at least 180° C. while treating it with carbon dioxide to reduce its basicity.

Claim 20

A liquid, oil-soluble, epoxidized-vegetable oil-compatible overbased barium salt complex that is the product obtained by (a) forming a reaction mixture that consists essentially of (i) a basic barium compound, (ii) an alkylphenol having from 1 to 3 alkyl groups each of which has from 8 to 12 carbon atoms, and (iii) an inert liquid organic diluent, in the amounts of at least 0.75 mole of said alkylphenol per mole of said barium compound and 10% to 50%, based on the weight of the reaction mixture, of the diluent, and (b) maintaining said reaction mixture at a temperature of at least 180° C. while treating it with carbon dioxide to reduce its basicity.

Claim 21

A liquid, oil-soluble, epoxidized vegetable oil-compatible overbased barium salt complex as set forth in claim 17 that is the product obtained by passing carbon dioxide through a reaction mixture that contains at least 0.85 mole of an alkylphenol per mole of said barium compound and 20% to 30% by weight of said diluent, based on the weight of said reaction mixture, while the reaction mixture is maintained at a temperature of at least 180° C.

Claim 22

A liquid, oil-soluble, epoxidized vegetable oil-compatible overbased barium salt complex as set forth in claim 17 that is the product obtained by passing carbon dioxide through a reaction mixture that contains 0.85 mole to 1.0 mole of a monoalkylphenol having 8 to 10 carbon atoms per mole of said barium compound while the reaction mixture is maintained at a temperature in the range of 185° C. to 250° C.

Claim 23

A liquid, oil-soluble, epoxidized vegetable oil-compatible overbased barium salt complex as set forth in claim 17 wherein the alkylphenol in the reaction mixture is nonylphenol.

Claim 24

A liquid, oil-soluble, epoxidized vegetable oil-compatible overbased barium salt complex as set forth in claim 17 wherein the basic barium compound in the reaction mixture is selected from the group consisting of barium oxide, barium hydroxide, and hydrated barium hydroxide.

Claim 25

A liquid, oil-soluble, epoxidized vegetable oil-compatible overbased barium salt complex as set forth in claim 17 wherein the basic barium compound is barium hydroxide monohydrate.

Claim 26

A liquid, oil-soluble, epoxidized vegetable oil-compatible overbased barium salt complex as set forth in claim 17 wherein the inert liquid organic diluent in the reaction mixture is a mineral oil having a boiling range between 260° C. and 400° C.

Claim 27

The process for the preparation of a liquid, oil-soluble, epoxidized vegetable oil-compatible overbased barium salt complex that comprises the steps of (a) forming a reaction mixture that consists essentially of (i) a basic barium compound, (ii) an alkylphenol having from 1 to 3 alkyl groups each of which has from 8 to 12 carbon atoms, and (iii) an inert liquid organic diluent in the amounts of at least 0.75 mole of alkylphenol per mole of said barium compound and 10% to 50%, based on the weight of the reaction mixture, of the inert diluent, and (b) maintaining said reaction mixture at a temperature of at least 180° C. while treating it with carbon dioxide to reduce its basicity.

Claim 28

The process for the preparation of a liquid, oil-soluble, epoxidized vegetable oil-compatible overbased barium salt complex that comprises the steps of (a) forming a reaction mixture that consists essentially of (i) a basic barium compound, (ii) an alkylphenol having from 1 to 3 alkyl groups each of which has from 8 to 12 carbon atoms, and (iii) an inert liquid organic diluent in the amounts of at least 0.75 mole of alkylphenol per mole of said barium compound and 10% to 50%, based on the weight of the reaction mixture, of the inert diluent, and (b) maintaining said reaction mixture at a temperature of at least 180° C. while treating it with carbon dioxide to reduce its basicity.

Claim 29

The process of claim 24 wherein the reaction mixture formed in Step (a) contains at least 0.85 mole of alkylphenol per mole of said barium compound and 20% to 30% by weight of said diluent, based on the weight of the reaction mixture.

Claim 30

The process of claim 24 wherein in Step (b) the reaction mixture is maintained at a temperature of at least 185° C. while it is treated with carbon dioxide.

Claim 31

The process of claim 24 wherein in Step (b) the reaction mixture is maintained at a temperature in the range of 185° C. to 250° C. while it is treated with carbon dioxide.

Claim 32

The process of claim 24 wherein the alkylphenol in the reaction mixture is a monoalkylphenol having 8 to 10 carbon atoms.

Claim 33

The process of claim 24 wherein the basic barium compound in the reaction mixture is selected from the group consisting of barium oxide, barium hydroxide, and hydrated barium hydroxide.

Claim 34

The process of claim 24 wherein the inert liquid organic diluent in the reaction mixture is a mineral oil having a boiling range between 260° C. and 400° C.