EP0047894A2
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EP
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Homogeneous storage-stable liquid barium-cadmium-triphosphite stabilizer systems for polyvinyl chloride resins
Assignee: Argus Chemical Corp
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Filing: 1981-08-28
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Granted: —
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Expires: 2001-08-28
Abstract
Abstract Homogeneous storage-stable liquid stabilizer systems for polyvinyl chloride resins are provided which are substantially soivent-free and have a low viscosity and a minimum flash point of 96°C, containing, as the essential ingredients, a liquid barium carbonate-barium alkyl phenate; a cadmium salt of a branched chain aliphatic carboxylic acid having from about five to about thirteen carbon atoms, and/or of an aromatic carboxylic acid having from about seven to about eleven carbon atoms, and/or of an unsaturated aliphatic carboxylic acid having from about twelve to about twenty-two carbons; and a liquid organic triphosphite in an amount to form a homogeneous storage-stable liquid; the total weight percent of barium and cadmium in the stabilizer system being at least 13%, and the ratio of the weight percent of cadmium to the weight percent of barium being within the range from about 0.5:1 to about 1.5:1; optionally together with any one or more of a soluble zinc salt of a carboxylic acid, a soluble phenolic antioxidant, a liquid organic acid phosphite, and a soluble carboxylic acid.
Inventors
- 👤 Alberto D. Aza
- 👤 Charles Keeley
- 👤 Jay L. Rogers
- 👤 Stuart D. Brilliant
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 11:15
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
156 words
A homogeneous storage-stable liquid stabilizer system for polyvinyl chloride resins which is substantially solvent-free and has a low viscosity and a minimum flash point of 96°C, consisting essentially of: (1) a liquid barium carbonate-alkyl phenate stabilizer; (2) a cadmium salt of a carboxylic acid selected from the group consisting of branched chain aliphatic carboxylic acids having from about five to about thirteen carbon atoms, aromatic carboxylic acids having from about seven to about eleven carbon atoms, and unsaturated aliphatic carboxylic acids having from about twelve to about twenty-two carbon atoms; and (3) a liquid organic triphosphite; the sum of the weight percent of barium and the weight percent of cadmium being at least 13%; and the ratio of the weight percent of cadmium to the weight percent of barium Cd: Ba being within the range from about 0. 5: to about 1. 5:1; the organic triphosphite being in an amount to form a homogeneous storage-stable liquid.
Claim 2
Dependent Claim
156 words
A homogeneous storage-stable liquid stabilizer system for polyvinyl chloride resins which is substantially solvent-free and has a low viscosity and a minimum flash point of 96°C, consisting essentially of: (1) a liquid barium carbonate-alkyl phenate stabilizer; (2) a cadmium salt of a carboxylic acid selected from the group consisting of branched chain aliphatic carboxylic acids having from about five to about thirteen carbon atoms, aromatic carboxylic acids having from about seven to about eleven carbon atoms, and unsaturated aliphatic carboxylic acids having from about twelve to about twenty-two carbon atoms; and (3) a liquid organic triphosphite; the sum of the weight percent of barium and the weight percent of cadmium being at least 13%; and the ratio of the weight percent of cadmium to the weight percent of barium Cd: Ba being within the range from about 0. 5: to about 1. 5:1; the organic triphosphite being in an amount to form a homogeneous storage-stable liquid.
Claim 3
Dependent Claim
46 words
A stabilizer system according to claim 1 comprising, in addition, at least one member of the group consisting of : (a) a soluble zinc salt of a carboxylic acid; (b) a soluble phenolic antioxidant; (c) a soluble carboxylic acid; and (d) a liquid organic acid phosphite.
Claim 4
Dependent Claim
23 words
A stabilizer system according to claim 1 in which the cadmium salt is a salt of a mixture of aliphatic and aromatic acids.
Claim 5
Dependent Claim
39 words
A stabilizer system according to claim 1 in which the liquid barium carbonate-alkyl phenate comprises barium carbonate combined with at least one barium alkyl phenate in a nonvolatile organic liquid which acts as a liquefying agent for the carbonate.
Claim 6
Dependent Claim
29 words
A stabilizer system according to claim 1 in which the metal ratio of barium carbonate to barium alkyl phenate is a number within the range from 2 to 20.
Claim 7
Dependent Claim
36 words
A stabilizer system according to claim 1 in which the ratio of total barium to the organic moiety in the barium carbonate-barium alkyl phenate is greater than the stoichiometric ratio of the neutral barium alkyl phenate.
Claim 8
Dependent Claim
16 words
A stabilizer system according to claim 1 in which the cadmium carboxylate salt is a liquid.
Claim 9
Dependent Claim
29 words
. 8. A stabilizer system according to claim 1 in which the organic triphosphite ester is a liquid over the temperature range from about -10°C up to about 200°C.
Claim 10
Dependent Claim
15 words
A stabilizer system according to claim 1, comprising in addition, a liquid organic acid phosphite.
Claim 11
Dependent Claim
15 words
A stabilizer system according to claim 1, comprising, in addition, a free soluble carboxylic acid.
Claim 12
Dependent Claim
13 words
A stabilizer system according to claim 1, comprising, in addition, a phenolic antioxidant.
Claim 13
Dependent Claim
62 words
A stabilizer system according to claim 1 comprising, In addition, a zinc salt of a carboxylic acid selected from the group consisting of branched chain aliphatic carboxylic acids having from about five to about thirteen carbon atoms; aromatic carboxylic acids having from about seven to about eleven carbon atoms; and unsaturated aliphatic carboxylic acids having from about twelve to about twenty-two carbons.
Claim 14
Dependent Claim
68 words
A stabilizer system according to claim 1 comprising a blend of: (a) barium carbonate-barium alkyl phenate in an amount within the range from about 20 to about 40 parts by weight; (b) cadmium carboxylate in an amount within the range from about 25 to about 40 parts by weight; and (c) organic triphosphite in an amount within the range from about 25 to about 45 parts by weight.
Claim 15
Dependent Claim
105 words
A stabilizer system according to claim 13 comprising at least one member of the group consisting of: (a) zinc carboxylate in an amount within the range from about 1 to about 10 parts by weight; (b) phenolic antioxidant in an amount within the range from about 0.01 to about 1 part by weight; (c) free carboxylic acid in an amount within the range from about 0.5 to about 5 parts by weight, but in no case more than 15% by weight of the cadmium carboxylate; and (d) acid phosphite in an amount within the range from about 0. 5 to about 5 parts by weight.
Claim 16
Dependent Claim
36 words
A stabilizer system according to claim 1 comprising, in addition, at least one member of the group consisting of an additional heat stabilizer for polyvinyl chloride resins and an additional light stabilizer for polyvinyl chloride resins.
Claim 17
Dependent Claim
68 words
A polyvinyl chloride resin composition having improved resistance to deterioration when heated at 350°F, comprising a polyvinyl chloride resin formed at least in part of the recurring group: and having a chlorine content in excess of 40%, where X is either hydrogen or chlorine; and an amount to enhance the resistance to deterioration of the resin of a stabilizer composition according to any of claims 1 to 15.
References Cited (Backward Citations)
No citation records indexed.
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