US2684353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of stabilizing halogen containing polymeric substances against heat and lightwith salts of epoxy fatty acids
Assignee: BUFFALO ELECTRO CHEM CO
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Filing: 1951-05-31
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Granted: 1954-07-20
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Expires: 1971-05-31
Abstract
No abstract record available.
Inventors
- 👤 Frank P Greenspan
- 👤 Ralph J Gall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:22
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/15; C08K5/151; C08K5/1515
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
THE METHOD OF IMPARTING IMPROVED HEAT AND LIGHT STABILITY TO A CHLORINE-CONTAINING VINYL POLYMER, WHICH COMPRISES INCORPORATING IN SAID COMPOSITION A STABILIZING AMOUNT OF A POLYVALENT METAL SALT OF AN ALIPHATIC ACID SELECTED FROM THE GROUP CONSISTING OF STRAIGHT CHAIN, BRANCHED CHAIN AND SUBSTITUTED ALIPHATIC ACIDS OF 11 TO 22 CARBON ATOMS CONTAINING AN EPOXY RING IN THE CHAIN.
Claim 2
Independent Claim
59 words
THE METHOD OF IMPARTING IMPROVED HEAT AND LIGHT STABILITY TO A CHLORINE-CONTAINING VINYL POLYMER, WHICH COMPRISES INCORPORATING IN SAID COMPOSITION A STABILIZING AMOUNT OF A POLYVALENT METAL SALT OF AN ALIPHATIC ACID SELECTED FROM THE GROUP CONSISTING OF STRAIGHT CHAIN, BRANCHED CHAIN AND SUBSTITUTED ALIPHATIC ACIDS OF 11 TO 22 CARBON ATOMS CONTAINING AN EPOXY RING IN THE CHAIN.
References Cited (Backward Citations)
US2456216A
Cited
US2590059A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-19 | 1958-01-18 | 1958-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-19 | 1962-01-18 | 1962-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-19 | 1966-01-18 | 1966-07-20 | $7700.00 | Window Closed / Lapsed |