US4269743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low toxicity vinyl halide stabilizer compositions
Assignee: Vibrantz Corp
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Filing: 1979-06-04
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Granted: 1981-05-26
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Expires: 1999-06-04
Abstract
Abstract A vinyl halide resin stabilizer composition which essentially contains: (a) a calcium, zinc or mixed calcium/zinc salt of a higher fatty acid; and (b) a polyhydroxy alcohol component wherein at least 50% of this component is either di-or tri-pentaerythritol. These compositions synergistically contribute to the heat stability of vinyl halide resin compositions and offer significant heat stabilization economies. Early color as well as long term heat stability performances of the metal salt compounds are improved in the compositions disclosed thereby permitting the reduction in amounts of such compounds needed for stabilization.
Inventors
- 👤 Ramchandra K. Hulyalkar
- 👤 Gerald A. Baum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:54
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C08K5/05; C08K5/053
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
52 words
A resin heat stabilizer composition which consists essentially of a metal salt of a higher fatty acid and a polyhydric alcohol selected from the group consisting of tripentaerythritol, mixtures of dipentaerythritol and tripentaerythritol, and mixtures of dipentaerythritol and tripentaerythritol, individually and in combination, with any of pentaerythritol, mannitol, sorbitol and mixtures thereof.
Claim 2
Dependent Claim
52 words
A resin heat stabilizer composition which consists essentially of a metal salt of a higher fatty acid and a polyhydric alcohol selected from the group consisting of tripentaerythritol, mixtures of dipentaerythritol and tripentaerythritol, and mixtures of dipentaerythritol and tripentaerythritol, individually and in combination, with any of pentaerythritol, mannitol, sorbitol and mixtures thereof.
Claim 3
Dependent Claim
23 words
A composition according to claim 1 wherein the metal salt is calcium, zinc or a mixed calcium/zinc salt of a higher fatty acid.
Claim 4
Dependent Claim
28 words
A composition according to claim 2 wherein the proportion of the metal salt component to the polyhydric alcohol component is from about 1 to 9 to about 9:1.
Claim 5
Dependent Claim
13 words
A composition according to claim 3 wherein the metal salt is zinc stearate.
Claim 6
Dependent Claim
13 words
A composition according to claim 3 wherein the metal salt is calcium stearate.
Claim 7
Dependent Claim
15 words
A composition according to claim 3 wherein the metal salt is a mixed calcium-zinc stearate.
Claim 8
Dependent Claim
19 words
A composition according to claim 3 wherein the metal salt is a mixture of calcium stearate and zinc stearate.
Claim 9
Dependent Claim
12 words
A composition according to claim 3 wherein the polyhydric alcohol is tripentaerythritol.
Claim 10
Dependent Claim
20 words
A composition according to claim 3 wherein the polyhydric alcohol is a 1 to 1 mixture of dipentaerythritol to pentaerythritol.
Claim 11
Dependent Claim
66 words
A vinyl halide resin composition which comprises a vinyl halide resin and, as stabilizer an effective amount of a composition consisting essentially of a metal salt of a higher fatty acid and a polyhydric alcohol selected from the group consisting of tripentaerythritol, mixtures of dipentaerythritol and tripentaerythritol, and mixtures of dipentaerythritol and tripentaerythritol, individually and in combination, with any of pentaerythritol, mannitol, sorbitol and mixtures thereof.
Claim 12
Dependent Claim
66 words
A vinyl halide resin composition which comprises a vinyl halide resin and, as stabilizer an effective amount of a composition consisting essentially of a metal salt of a higher fatty acid and a polyhydric alcohol selected from the group consisting of tripentaerythritol, mixtures of dipentaerythritol and tripentaerythritol, and mixtures of dipentaerythritol and tripentaerythritol, individually and in combination, with any of pentaerythritol, mannitol, sorbitol and mixtures thereof.
Claim 13
Dependent Claim
16 words
A composition according to claim 10, wherein the vinyl halide resin is a vinyl chloride resin.
Claim 14
Dependent Claim
30 words
A composition according to claim 11 wherein the proportion of the metal salt component to the polyhydric alcohol component is from about 1 to 1 to about 10 to 1.
Claim 15
Dependent Claim
35 words
A composition according to claim 10 wherein the metal salt is calcium, zinc, a mixed calcium/zinc salt of a higher fatty acid or a mixture of calcium and zinc salts of a higher fatty acid.
Claim 16
Dependent Claim
13 words
A composition according to claim 13 wherein the metal salt is zinc stearate.
Claim 17
Dependent Claim
13 words
A composition according to claim 13 wherein the metal salt is calcium stearate.
Claim 18
Dependent Claim
15 words
A composition according to claim 13 wherein the metal salt is a mixed calcium-zinc stearate.
Claim 19
Dependent Claim
19 words
A composition according to claim 13 wherein the metal salt is a mixture of calcium stearate and zinc stearate.
Claim 20
Dependent Claim
12 words
A composition according to claim 13 wherein the polyhydric alcohol is tripentaerythritol.
Claim 21
Dependent Claim
22 words
A composition according to claim 13 wherein the polyhydric alcohol is a 1 to 1 mixture by weight of dipentaerythritol to pentaerythritol.
Claim 22
Dependent Claim
24 words
A composition according to claim 10, wherein the proportion of resin in stabilizer is from about 100 to 0.5 to about 100 to 5.
Claim 23
Dependent Claim
35 words
A vinyl halide resin composition which comprises 100 parts of a vinyl chloride resin and 0.5 to 5 parts of a stabilizer consisting essentially of a mixture of zinc stearate and calcium stearate and tripentaerythritol.
Claim 24
Dependent Claim
35 words
A vinyl halide resin composition which comprises 100 parts of a vinyl chloride resin and 0.5 to 5 parts of a stabilizer consisting essentially of a mixture of zinc stearate and calcium stearate and tripentaerythritol.
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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) | 1984-05-25 | 1984-11-24 | 1985-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-25 | 1988-11-24 | 1989-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-25 | 1992-11-24 | 1993-05-26 | $7700.00 | Window Closed / Lapsed |