US4348494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid, solvent-free, non-toxic stabilizers and vinyl chloride resin compositions containing same
Assignee: Argus Chemical Corp
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Filing: 1980-06-10
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Granted: 1982-09-07
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Expires: 2000-06-10
Abstract
Abstract Liquid, solvent-free, non-toxic stabilizers for vinyl chloride resin compositions comprise a major amount of a liquid epoxy compound and minor amounts of magnesium, zinc, and calcium salts of alkanoic acids having 6 to 26 carbon atoms, an organosulfur compound, and an organic phosphite. Vinyl chloride resin compositions that contain these stabilizers are characterized by excellent heat and light stability, color, and clarity.
Inventors
- 👤 Mahmoud Kheidr
- 👤 Irene A. E. Fraser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:43
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/15; C08K5/36; C08K5/37; C08K5/49; C08K5/51; C08K5/52
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
162 words
A liquid, solvent-free, non-toxic stabilizer for vinyl chloride resin compositions that comprises (a) 40% to 90% by weight of a liquid epoxy compound that is an ester of epoxidized fatty acids having 14 to 22 carbon atoms; (b) 1% to 10% by weight of a magnesium salt of an alkanoic acid having 6 to 26 carbon atoms; (c) 1% to 10% by weight of a zinc salt of an alkanoic acid having 6 to 26 carbon atoms; (d) 1% to 10% by weight of a calcium salt of an alkanoic acid having 6 to 26 carbon atoms; (e) 1% to 10% by weight of thiodipropionic acid; and (f) 1% to 30% by weight of an organic phosphite selected from the group consisting of secondary and tertiary alkyl, aryl, and alkyl aryl phosphites in which the alkyl groups have 3 to 18 carbon atoms and the aryl groups are phenyl or alkylphenyl in which each alkyl group has 4 to 12 carbon atoms.
Claim 2
Dependent Claim
162 words
A liquid, solvent-free, non-toxic stabilizer for vinyl chloride resin compositions that comprises (a) 40% to 90% by weight of a liquid epoxy compound that is an ester of epoxidized fatty acids having 14 to 22 carbon atoms; (b) 1% to 10% by weight of a magnesium salt of an alkanoic acid having 6 to 26 carbon atoms; (c) 1% to 10% by weight of a zinc salt of an alkanoic acid having 6 to 26 carbon atoms; (d) 1% to 10% by weight of a calcium salt of an alkanoic acid having 6 to 26 carbon atoms; (e) 1% to 10% by weight of thiodipropionic acid; and (f) 1% to 30% by weight of an organic phosphite selected from the group consisting of secondary and tertiary alkyl, aryl, and alkyl aryl phosphites in which the alkyl groups have 3 to 18 carbon atoms and the aryl groups are phenyl or alkylphenyl in which each alkyl group has 4 to 12 carbon atoms.
Claim 3
Dependent Claim
16 words
A liquid, solvent-free, non-toxic stabilizer as defined in claim 1 wherein the organic phosphite is tri(nonylphenyl)phosphite.
Claim 4
Dependent Claim
18 words
A liquid, solvent-free, non-toxic stabilizer as defined in claim 1 wherein the epoxy compound is epoxidized soybean oil.
Claim 5
Dependent Claim
28 words
A liquid, solvent-free, non-toxic stabilizer as defined in claim 1 wherein the magnesium, zinc, and calcium salts are salts of alkanoic acids having 8 to 18 carbon atoms.
Claim 6
Dependent Claim
19 words
A liquid, solvent-free, non-toxic stabilizer as defined in claim 1 that contains magnesium stearate, zinc stearate, and calcium stearate.
Claim 7
Dependent Claim
72 words
A liquid, solvent-free, non-toxic stabilizer as defined in claim 1 that contains (a) 60% to 80% by weight of said epoxy compound, (b) 3% to 7% by weight of said magnesium salt, (c) 4% to 9% by weight of said zinc salt, (d) 1% to 4% by weight of said calcium salt, (e) 1% to 4% by weight of thiodipropionic acid, and (f) 9% to 15% by weight of said organic phosphite.
Claim 8
Dependent Claim
67 words
A liquid, solvent-free, non-toxic stabilizer as defined in claim 1 that contains (a) 60% to 80% by weight of epoxidized soybean oil, (b) 3% to 7% by weight of magnesium stearate, (c) 4% to 9% by weight of zinc stearate, (d) 1% to 4% by weight of calcium stearate, (e) 1% to 4% by weight of thiodipropionic acid, and (f) 9% to 15% by weight of tri(nonylphenyl)phosphite.
Claim 9
Dependent Claim
184 words
A non-toxic, heat and light stable resinous composition that comprises a vinyl chloride resin and 1% to 5%, based on the weight of the vinyl chloride resin, of a liquid, solvent-free stabilizer that comprises (a) 40% to 90% by weight of a liquid epoxy compound that is an ester of epoxidized fatty acids having 14 to 22 carbon atoms; (b) 1% to 10% by weight of a magnesium salt of an alkanoic acid having 6 to 26 carbon atoms; (c) 1% to 10% by weight of a zinc salt of an alkanoic acid having 6 to 26 carbon atoms; (d) 1% to 10% by weight of a calcium salt of an alkanoic acid having 6 to 26 carbon atoms; (e) 1% to 10% by weight of thiodipropionic acid; and (f) 1% to 30% by weight of an organic phosphite selected from the group consisting of secondary and tertiary alkyl, aryl, and alkyl aryl phosphites in which the alkyl groups have 3 to 18 carbon atoms and the aryl groups are phenyl or alkylphenyl in which each alkyl group has 4 to 12 carbon atoms.
Claim 10
Dependent Claim
184 words
A non-toxic, heat and light stable resinous composition that comprises a vinyl chloride resin and 1% to 5%, based on the weight of the vinyl chloride resin, of a liquid, solvent-free stabilizer that comprises (a) 40% to 90% by weight of a liquid epoxy compound that is an ester of epoxidized fatty acids having 14 to 22 carbon atoms; (b) 1% to 10% by weight of a magnesium salt of an alkanoic acid having 6 to 26 carbon atoms; (c) 1% to 10% by weight of a zinc salt of an alkanoic acid having 6 to 26 carbon atoms; (d) 1% to 10% by weight of a calcium salt of an alkanoic acid having 6 to 26 carbon atoms; (e) 1% to 10% by weight of thiodipropionic acid; and (f) 1% to 30% by weight of an organic phosphite selected from the group consisting of secondary and tertiary alkyl, aryl, and alkyl aryl phosphites in which the alkyl groups have 3 to 18 carbon atoms and the aryl groups are phenyl or alkylphenyl in which each alkyl group has 4 to 12 carbon atoms.
Claim 11
Dependent Claim
85 words
A non-toxic, heat and light stable resinous composition that comprises polyvinyl chloride and 2% to 4%, based on the weight of polyvinyl chloride, of a liquid, solvent-free stabilizer that contains (a) 60% to 80% by weight of epoxidized soybean oil, (b) 3% to 7% by weight of magnesium stearate, (c) 4% to 9% by weight of zinc stearate, (d) 1% to 4% by weight of calcium stearate, (e) 1% to 4% by weight of thiodipropionic acid, and (f) 9% to 15% by weight of tri(nonylphenyl)phosphite.
Claim 12
Dependent Claim
85 words
A non-toxic, heat and light stable resinous composition that comprises polyvinyl chloride and 2% to 4%, based on the weight of polyvinyl chloride, of a liquid, solvent-free stabilizer that contains (a) 60% to 80% by weight of epoxidized soybean oil, (b) 3% to 7% by weight of magnesium stearate, (c) 4% to 9% by weight of zinc stearate, (d) 1% to 4% by weight of calcium stearate, (e) 1% to 4% by weight of thiodipropionic acid, and (f) 9% to 15% by weight of tri(nonylphenyl)phosphite.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-09-06 | 1986-03-08 | 1986-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-06 | 1990-03-08 | 1990-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-06 | 1994-03-08 | 1994-09-07 | $7700.00 | Window Closed / Lapsed |