US3904564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaging stabilizer
Assignee: Arkema Inc
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Filing: 1971-05-20
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Granted: 1975-09-09
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Expires: 1991-05-20
Abstract
Abstract This invention relates to stabilizer compositions, to stabilized halogenated vinyl resins and to the process for preparing halogen-containing vinyl resin compositions stabilized against the deteriorative effects of heat by adding to a halogencontaining vinyl resin an effective amount of a stabilizer comprising a solution of calcium ethyl acetoacetate in glycerol monoricinoleate, optionally in a combination with other known stabilizers that preferably includes N,N-diphenylthiourea and a zinc salt of an aromatic or high molecular weight aliphatic carboxylic acid.
Inventors
- 👤 William E Mayo
- 👤 John W Brook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:14
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101; C08K5/103; C08K5/0091; C08K5/49; C08K5/51; C08K5/52; C08K5/524; C08K5/526
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
33 words
A STABILIZER COMPOSITION FOR CHLORIDE POLYMERS WHICH COMPRISES A SOLUTION OF CALCIUM ETHYL ACETOACETATE IN GLYCEROL MONORICINOLEATE, THE WEIGHT RATIO OF CALCIUM ETHYL ACETOACETATE TO GLYCEROL MONORICINOLEATE BRING BETWEEN ABOUT 1:1 AND 1:2.
Claim 2
Dependent Claim
33 words
A STABILIZER COMPOSITION FOR CHLORIDE POLYMERS WHICH COMPRISES A SOLUTION OF CALCIUM ETHYL ACETOACETATE IN GLYCEROL MONORICINOLEATE, THE WEIGHT RATIO OF CALCIUM ETHYL ACETOACETATE TO GLYCEROL MONORICINOLEATE BRING BETWEEN ABOUT 1:1 AND 1:2.
Claim 3
Dependent Claim
62 words
The stabilizer of claim 1 which comprises, in addition to said solution of calcium ethyl acetate, a solid phase wherein the sole or major component is a combination of a zinc salt of an aliphatic carboxylic acid containing between 10 and 20 carbon atoms with N,N-diphenylThiourea, said solid phase comprising up to about 40 per cent by weight of the total stabilizer.
Claim 4
Dependent Claim
49 words
A vinyl chloride polymer composition stabilized against the deteriorative effect of heat comprising a vinyl chloride polymer and between 0.01 and 15 percent by weight, based on said composition, of a stabilizer comprising a 33 1/3 % to 50% by weight solution of calcium ethyl acetoacetate in glycerol monoricinoleate.
Claim 5
Dependent Claim
49 words
A vinyl chloride polymer composition stabilized against the deteriorative effect of heat comprising a vinyl chloride polymer and between 0.01 and 15 percent by weight, based on said composition, of a stabilizer comprising a 33 1/3 % to 50% by weight solution of calcium ethyl acetoacetate in glycerol monoricinoleate.
Claim 6
Dependent Claim
23 words
The vinyl chloride polymer composition of claim 3 wherein the stabilizer comprises between 0.01 and 2 per cent by weight of the composition.
Claim 7
Dependent Claim
67 words
The vinyl chloride polymer composition of claim 3 wherein the stabilizer comprises, in addition to said solution of calcium ethyl acetate, a solid phase wherein the sole or major component is a combination of a zinc salt of an aliphatic carboxylic acid containing between 10 and 20 carbon atoms with N,N-di-phenylthiourea, said solid phase comprising up to about 40 per cent by weight of the total stabilizer.
Claim 8
Dependent Claim
68 words
The vinyl chloride polymer composition of claim 5 wherein the stabilizer also comprises at least one auxiliary stabilizer selected from the group consisting of the calcium and magnesium salts of stearic, oleic, ricinoleic, benzoic, salicylic, and mixed fatty acids, epoxidized oils, thiodipropionic acid and hindered phenols, the total concentration of said auxiliary stabilizers being between 0.01 and 15 per cent by weight of the vinyl chloride polymer composition.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-08 | 1979-03-10 | 1979-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-08 | 1983-03-10 | 1983-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-08 | 1987-03-10 | 1987-09-09 | $7700.00 | Window Closed / Lapsed |