US4224203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl chloride polymer stabilizer comprising a metal organophosphonate
Assignee: Argus Chemical Corp
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Filing: 1978-09-05
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Granted: 1980-09-23
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Expires: 1998-09-05
Abstract
Abstract A stabilizer composition is disclosed that enhances the resistance to deterioration upon heating of vinyl chloride polymers. The stabilizer composition comprises (A) a metal salt of a sulfur-and nitrogen-free monocarboxylic acid or a phenol and (B) a metal P-hydrocarbonphosphonate having at least one to thirty carbon atoms in the hydrocarbon group. Vinyl chloride polymer compositions stabilized with the above disclosed stabilizer composition are also disclosed.
Inventors
- 👤 Motonobu Minagawa
- 👤 Tetsuo Sekiguchi
- 👤 Naoyasu Kurita
- 👤 Yuji Sugawara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:52
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5317; C08K5/04; C08K5/09; C08K5/098; C08K5/13; C08K5/138; C08K5/5333
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
95 words
A stabilizer composition capable of enhancing the resistance to discoloration and loss of clarity of a vinyl chloride polymer when heated at 175° C., comprising (A) at least one metal salt of a monocarboxylic acid having 6 to 24 carbon atoms and free of sulfur and nitrogen, or a phenol having 6 to 30 carbon atoms and (B) at least one metal P-hydrocarbonphosphonate having linked directly to phosphorus one hydrocarbon group having 1 to 30 carbon atoms and three oxygen atoms of which at least one and not more than two are linked to metal.
Claim 2
Dependent Claim
95 words
A stabilizer composition capable of enhancing the resistance to discoloration and loss of clarity of a vinyl chloride polymer when heated at 175° C., comprising (A) at least one metal salt of a monocarboxylic acid having 6 to 24 carbon atoms and free of sulfur and nitrogen, or a phenol having 6 to 30 carbon atoms and (B) at least one metal P-hydrocarbonphosphonate having linked directly to phosphorus one hydrocarbon group having 1 to 30 carbon atoms and three oxygen atoms of which at least one and not more than two are linked to metal.
Claim 3
Dependent Claim
29 words
A stabilizer composition according to claim 1 in which the metal carboxylic acid salt is a salt of the metals barium, calcium, cadmium, dialkyltin, magnesium, strontium, tin, or zinc.
Claim 4
Dependent Claim
25 words
A stabilizer composition according to claim 1 in which the salt is a salt of 2-ethylhexoic acid, neodecanoic acid, lauric acid, stearic acid, or nonylphenol.
Claim 5
Dependent Claim
19 words
A stabilizer composition according to claim 1 in which the metal P-hydrocarbonphosphonate has one P-hydrocarbonphosphonate group per metal atom.
Claim 6
Dependent Claim
19 words
A stabilizer composition according to claim 1 in which the metal P-hydrocarbonphosphonate has two P-hydrocarbonphosphonate groups per metal atom.
Claim 7
Dependent Claim
24 words
A stabilizer composition according to claim 1 in which the metal P-hydrocarbonphosphonate is a P-hydrocarbonphosphonate of barium, calcium, magnesium, stannous tin, strontium, or zinc.
Claim 8
Dependent Claim
133 words
A stabilizer composition according to claim 1 in which the metal P-hydrocarbonphosphonate is represented by the formula: ##STR93## in which R is an aromatic group having 6 to 30 carbon atoms, an aliphatic group having 1 to 30 carbon atoms, or a cycloaliphatic group having 5 to 30 carbon atoms, M is a metal having a valence of m, R' is a group R or M 1/m , m is an integer from 1 to 4, and the metal is selected from Group I metals having an atomic weight less than 50, Group II metals having an atomic weight between 20 and 150, a metal of Group IV having an atomic weight between 90 and 220, and antimony, tin substituted with two alkyl groups having from 1 to 12 carbon atoms, and nickel.
Claim 9
Dependent Claim
14 words
A stabilizer composition according to claim 7 in which R' is an R group.
Claim 10
Dependent Claim
21 words
A stabilizer composition according to claim 8 in which R' is an aromatic group having from 6 to 30 carbon atoms.
Claim 11
Dependent Claim
14 words
A stabilizer composition according to claim 7 in which R' is M 1/m .
Claim 12
Dependent Claim
12 words
A stabilizer composition according to claim 7 in which m is 2.
Claim 13
Dependent Claim
118 words
A stabilizer composition according to claim 1 comprising as an additional ingredient a compound selected from the group consisting of 1,2-epoxides having 15 to 150 carbon atoms; hindered phenols; organic phosphites having 10 to 75 carbon atoms; esters of thiodialkylenedicarboxylic and 3-aminocrotonic acids; aliphatic polyhydric alcohols having 3 to 8 alcoholic hydroxyl groups; ketoacetic acid compounds having at least eight carbon atoms in the molecule; diphenyl thiourea; alkyl acid phosphates having 1 to 2 alkyl groups of 8 to 10 carbon atoms per phosphate ester group; ether alcohol acid phosphates having 1 to 2 ether alcohol groups per phosphate group, and betadiketones having two to three aromatic, cycloaliphatic, or aliphatic acyl groups linked to a single carbon atom.
Claim 14
Dependent Claim
19 words
A stabilized vinyl chloride polymer composition comprising a vinyl chloride polymer and a stabilizer composition according to claim 1.
Claim 15
Dependent Claim
21 words
A stabilized vinyl chloride polymer composition according to claim 13 in which the vinyl chloride polymer is homopolymer of vinyl chloride.
Claim 16
Dependent Claim
41 words
A stabilized vinyl chloride polymer composition according to claim 13 in which the vinyl chloride polymer is a copolymer of vinyl chloride and a co-monomer selected from the group consisting of propylene, ethylene, 1-butene, 1-hexene, vinyl acetate, acrylonitrile, and diethyl maleate.
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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) | 1983-09-23 | 1984-03-24 | 1984-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-23 | 1988-03-24 | 1988-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-23 | 1992-03-24 | 1992-09-23 | $7700.00 | Window Closed / Lapsed |