US4146518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized halogen-containing resin composition
Assignee: Adeka Corp
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Filing: 1977-07-21
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Granted: 1979-03-27
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Expires: 1997-07-21
Abstract
Abstract A stabilized halogen-containing resin composition by incorporating therein (a) at least one kind of mono alkyltin compounds or dialkyltin compounds and (b) at least one kind of monoalkoxycarbonylalkyltin compound or bis(alkoxycarbonylalkyl)tin compounds.
Inventors
- 👤 Motonobu Minagawa
- 👤 Tetsuo Sekiguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:52
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/56; C08K5/57
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
146 words
A stabilizer composition capable of enhancing the ease of processing and resistance to discoloration on heating of a polyvinyl chloride resin at 190° C. consisting essentially of (A) at least one alkoxycarbonylalkylenestannane having linked to tin through carbon one to two alkoxycarbonylalkylene groups having 1 to 30 carbon atoms in the alkoxy group and 2 and 3 carbon atoms in the alkylene group selected from the group consisting of alkoxycarbonylalkylenestannane mercaptides, alkoxycarbonylalkylenestannane mercaptide-sulfides, alkoxycarbonylalkylenestannane sulfides. alkoxycarbonylalkylenestannane oxides, and alkoxycarbonylalkylenestannane carboxylates, and (B) at least one alkylstannane having linked to tin through carbon one to two alkyl groups having 1 to 12 carbon atoms selected from the group consisting of alkylstannoic acids, dialkyltin oxides, dialkyltin sulfides, alkylthiostannoic acids, dialkyltin carboxylates, monoalkyltin mercaptides, dialkyltin mercaptides, monoalkyltin mercaptide-sulfides, dialkyltin mercaptide-sulfides, and monoalkyltin chloromercaptides, the weight proportions of alkoxycarbonylalkylenestannane to alkylstannane in the stabilizer composition ranging from 1:1 to 1:9.
Claim 2
Dependent Claim
146 words
A stabilizer composition capable of enhancing the ease of processing and resistance to discoloration on heating of a polyvinyl chloride resin at 190° C. consisting essentially of (A) at least one alkoxycarbonylalkylenestannane having linked to tin through carbon one to two alkoxycarbonylalkylene groups having 1 to 30 carbon atoms in the alkoxy group and 2 and 3 carbon atoms in the alkylene group selected from the group consisting of alkoxycarbonylalkylenestannane mercaptides, alkoxycarbonylalkylenestannane mercaptide-sulfides, alkoxycarbonylalkylenestannane sulfides. alkoxycarbonylalkylenestannane oxides, and alkoxycarbonylalkylenestannane carboxylates, and (B) at least one alkylstannane having linked to tin through carbon one to two alkyl groups having 1 to 12 carbon atoms selected from the group consisting of alkylstannoic acids, dialkyltin oxides, dialkyltin sulfides, alkylthiostannoic acids, dialkyltin carboxylates, monoalkyltin mercaptides, dialkyltin mercaptides, monoalkyltin mercaptide-sulfides, dialkyltin mercaptide-sulfides, and monoalkyltin chloromercaptides, the weight proportions of alkoxycarbonylalkylenestannane to alkylstannane in the stabilizer composition ranging from 1:1 to 1:9.
Claim 3
Dependent Claim
15 words
A stabilizer composition according to claim 1 in which the alkoxycarbonylalkylenestannane is an alkoxycarbonylalkylenestannane sulfide.
Claim 4
Dependent Claim
15 words
A stabilizer composition according to claim 1 in which the alkoxycarbonylalkylenestannane is an alkoxycarbonylalkylenestannane mercaptide.
Claim 5
Dependent Claim
15 words
A stabilizer composition according to claim 1 in which the alkoxycarbonylalkylenestannane is an alkoxycarbonylalkylenestannane carboxylate.
Claim 6
Dependent Claim
17 words
A stabilizer composition according to claim 2 in which the alkoxycarbonyl alkylenestannane sulfide is bis(2-ethoxycarbonylethyl)tin sulfide polymer.
Claim 7
Dependent Claim
15 words
A stabilizer composition according to claim 3 in which the alkoxycarbonylalkylenestannane mercaptide is 2-methoxycarbonylethyltin tris(isooctylthioglycolate).
Claim 8
Dependent Claim
16 words
A stabilizer composition according to claim 4 in which the alkoxycarbonylalkylenestannane carboxylate is bis(methoxycarbonylethyl) tin maleate.
Claim 9
Dependent Claim
15 words
A stabilizer composition according to claim 1 in which the alkylstannane is a monoalkyltin mercaptide.
Claim 10
Dependent Claim
15 words
A stabilizer composition according to claim 1 in which the alkylstannane is a dialkyltin carboxylate.
Claim 11
Dependent Claim
15 words
A stabilizer composition according to claim 1 in which the alkylstannane is an alkylthiostannoic acid.
Claim 12
Dependent Claim
16 words
A stabilizer composition according to claim 1 which is a homogeneous storage-stable liquid at 20° C.
Claim 13
Dependent Claim
47 words
A stabilizer composition according to claim 1 containing as an additional ingredient a compound selected from the group consisting of hindered phenols, monocarboxylate salts of zinc, magnesium, calcium, strontium, barium, sodium and potassium, hydrocarbon substituted phenol salts of barium, and 1,2-epoxides having 15 to 75 carbon atoms.
Claim 14
Dependent Claim
32 words
A polyvinyl chloride resin composition having enhanced ease of processing and resistance to discoloration upon heating at 190° C. comprising a polyvinyl chloride resin and a stabilizer composition according to claim 1.
Claim 15
Dependent Claim
29 words
A polyvinyl chloride composition according to claim 13 in which the quantity of stabilizer composition is 0.1 to 5 parts by weight per 100 parts of polyvinyl chloride resin.
Claim 16
Dependent Claim
15 words
A stabilizer composition according to claim 1 in which the alkylstannane is a dialkyltin mercaptide.
Claim 17
Dependent Claim
15 words
A stabilizer composition according to claim 1 in which the alkylstannane is a dialkyltin sulfide.
References Cited (Backward Citations)
US3021302A
Cited
US3565931A
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US3565930A
Cited
US3565930B1
Cited
US3609120A
Cited
FR2306208A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-03-26 | 1982-09-25 | 1983-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-26 | 1986-09-25 | 1987-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-26 | 1990-09-25 | 1991-03-27 | $7700.00 | Window Closed / Lapsed |