US2829120A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxalic acid and triphenyl phosphite-containing polyester-ethylenic monomer resins to inhibit corrosion of metals
Assignee: PPG Industries Inc
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Filing: 1954-06-17
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Granted: 1958-04-01
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Expires: 1974-06-17
Abstract
No abstract record available.
Inventors
- 👤 Earl E Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:20
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/092; C08K5/49; C08K5/51; C08K5/52; C08K5/524; C08K5/526
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
216 words
A LIQUID, INTERPOLYMERICABLE MIXTURE WHICH IS SUBSTABTIALLY NON-CORROSIVE TO COOPER WHEN CONTACTED THEREWITH AND COMPRISING (A) 40 TO 90 PERCENT BY WEIGHT OF A POLYESTER OF (I) A MIXTURE OF ALIPHATIC DIHYDRIC ALCOHOLS, ONE BEING A POLYETHYLENE GLYCOL A MOLAR WEIGHT BETWEEN ABOUT 300 AND 4,000 SAID POLYETHYLENE GLYCOL CONSTITUTING FROM ABOUT 5 TO ABOUT 25 PERCENT BY WEIGHT BASED UPON THE THE POLYESTER, THE REST OF THE DIHYDRIC ALCOHOL COMPONET BEING ALIPHTIC GLYCOL OF CONTAINING FROM 2 TO 6 CARBON ATOMS; (II) A DICARBOXYLIC ACID COMPONENT COMPONENT BEING ALIPHATIC GLYCOL DIHYDRIC ALCOHOL COMPONENT IN SUCH AN AMOUNT THAT THE AMOUNT OF 2 TO 15 PERCENT UPON THE BASIS OF CHEMICAL EQUIVALENCY OF THE DICARBOXYLIC ACID COMPONENT, THE LATTER BEING A MIXTURE OF AN ALPHA-BETA ETHYLENIC DICARBOXYLIC ACID IN A RATIO OF ABOUT 1 MOLE AND 0.25 TO 10 MOLES OF A DICARBOXYLIC ACID OF A CLASS CONSISTING OF AN ALIPHATIC DICARBOXYLIC ACID CONTAINING UP TO 10 CARBON ATOMS AND AN AROMATIC DICARBOXYLIC ACID OF CLASS CONSISTING OF PHTHALIC ACID, TERPHTHALIC ACID AND ISOPHTHALIC ACID (C) ABOUT 0.01 TO 3 PERCENT BY WEIGHT BASED UPON THE INTERPOLYMERIZABLE MIXTURE OF TRIPHENYL PHOSPHITE (D) 0.01 TO 3 PERCENT BY WEIGHT UPON A LIKE BASIS OF OXYLIC ACID (E) THE REST OF THE MIXTURE BEING ESSENTIALLY A >C=CH2 MONOMER.
Claim 2
Dependent Claim
216 words
A LIQUID, INTERPOLYMERICABLE MIXTURE WHICH IS SUBSTABTIALLY NON-CORROSIVE TO COOPER WHEN CONTACTED THEREWITH AND COMPRISING (A) 40 TO 90 PERCENT BY WEIGHT OF A POLYESTER OF (I) A MIXTURE OF ALIPHATIC DIHYDRIC ALCOHOLS, ONE BEING A POLYETHYLENE GLYCOL A MOLAR WEIGHT BETWEEN ABOUT 300 AND 4,000 SAID POLYETHYLENE GLYCOL CONSTITUTING FROM ABOUT 5 TO ABOUT 25 PERCENT BY WEIGHT BASED UPON THE THE POLYESTER, THE REST OF THE DIHYDRIC ALCOHOL COMPONET BEING ALIPHTIC GLYCOL OF CONTAINING FROM 2 TO 6 CARBON ATOMS; (II) A DICARBOXYLIC ACID COMPONENT COMPONENT BEING ALIPHATIC GLYCOL DIHYDRIC ALCOHOL COMPONENT IN SUCH AN AMOUNT THAT THE AMOUNT OF 2 TO 15 PERCENT UPON THE BASIS OF CHEMICAL EQUIVALENCY OF THE DICARBOXYLIC ACID COMPONENT, THE LATTER BEING A MIXTURE OF AN ALPHA-BETA ETHYLENIC DICARBOXYLIC ACID IN A RATIO OF ABOUT 1 MOLE AND 0.25 TO 10 MOLES OF A DICARBOXYLIC ACID OF A CLASS CONSISTING OF AN ALIPHATIC DICARBOXYLIC ACID CONTAINING UP TO 10 CARBON ATOMS AND AN AROMATIC DICARBOXYLIC ACID OF CLASS CONSISTING OF PHTHALIC ACID, TERPHTHALIC ACID AND ISOPHTHALIC ACID (C) ABOUT 0.01 TO 3 PERCENT BY WEIGHT BASED UPON THE INTERPOLYMERIZABLE MIXTURE OF TRIPHENYL PHOSPHITE (D) 0.01 TO 3 PERCENT BY WEIGHT UPON A LIKE BASIS OF OXYLIC ACID (E) THE REST OF THE MIXTURE BEING ESSENTIALLY A >C=CH2 MONOMER.
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) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |