Patent US2316343A successfully refreshed from Google Patents.
Patent US2907750A successfully refreshed from Google Patents.
US2907750A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethanes of hydroxyaryl-aliphatic acid-aldehyde condensates
Assignee: SC Johnson and Son Inc
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Filing: 1957-02-21
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Granted: 1959-10-06
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Expires: 1977-02-21
Abstract
No abstract record available.
Inventors
- 👤 Sylvan O Greenlee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:29
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/54; C08G18/542
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A NEW COMPOSITION OF MATTER COMPRISING A POLYURETHANE CONDENSATION PRODUCT OF (A) A COMPOUND OF THE GENERAL FORMULA R(NCX)Z, WHEREIN R IS AN ORGANIC RADICAL HAVING A VALENCY EQUAL TO Z, X IS A CHALOCOGEN HAVING AN ATOMIC WEIGHT OF LESS THAN 33, AND Z IS AN INTEGER HAVING A VALUE OF MORE THAN 1; AND (B) A RESINOUS POLYBASIC ACID WHICH IS THE CONDENSATION PRODUCT OF (A) FORMALDEHYDE AND (B) A PENTANOIC ACID CONSISTING ESSENTIALLY OF 4,4 BIS(4-HYDROXYARYL)PENTANOIC ACID, WHEREIN THE HYDROXYARYL RADICAL IS A HYDROXYPHENYL RADICAL AND IS FREE FROM SUBSTITUENTS OTHER THAN ALKYL GROUPS OF FROM 1 TO 5 CARBON ATOMS, WITH SAID HYDROXYPHENYL RADICAL HAVING HYDROGEN ON AT LEAST ONE POSITION ORTHO TO THE HYDROXYL, WHEREIN THE RATIO OF (A) TO (B) IS FROM 1 TO 4 MOLES OF (A) PER MOLE OF (B), AND HAVING A RATIO OF (A) TO (B) OF FROM 1:5 TO 5:1 ON AN EQUIVALENT WEIGHT BASIS.
Claim 2
Dependent Claim
156 words
A NEW COMPOSITION OF MATTER COMPRISING A POLYURETHANE CONDENSATION PRODUCT OF (A) A COMPOUND OF THE GENERAL FORMULA R(NCX)Z, WHEREIN R IS AN ORGANIC RADICAL HAVING A VALENCY EQUAL TO Z, X IS A CHALOCOGEN HAVING AN ATOMIC WEIGHT OF LESS THAN 33, AND Z IS AN INTEGER HAVING A VALUE OF MORE THAN 1; AND (B) A RESINOUS POLYBASIC ACID WHICH IS THE CONDENSATION PRODUCT OF (A) FORMALDEHYDE AND (B) A PENTANOIC ACID CONSISTING ESSENTIALLY OF 4,4 BIS(4-HYDROXYARYL)PENTANOIC ACID, WHEREIN THE HYDROXYARYL RADICAL IS A HYDROXYPHENYL RADICAL AND IS FREE FROM SUBSTITUENTS OTHER THAN ALKYL GROUPS OF FROM 1 TO 5 CARBON ATOMS, WITH SAID HYDROXYPHENYL RADICAL HAVING HYDROGEN ON AT LEAST ONE POSITION ORTHO TO THE HYDROXYL, WHEREIN THE RATIO OF (A) TO (B) IS FROM 1 TO 4 MOLES OF (A) PER MOLE OF (B), AND HAVING A RATIO OF (A) TO (B) OF FROM 1:5 TO 5:1 ON AN EQUIVALENT WEIGHT BASIS.
References Cited (Backward Citations)
FR901768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |