US2974116A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyesters extended with diallylidene pentaerythritol and compositions containing same
Assignee: Armstrong World Industries Inc
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Filing: 1957-04-16
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Granted: 1961-03-07
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Expires: 1977-04-16
Abstract
No abstract record available.
Inventors
- 👤 John A Parker
- 👤 Harold R Ready
- 👤 Versnel John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:15
CPC Classifications
C; C07; C07D; C07D493/00; C07D493/02; C07D493/10; C08; C08L; C08L67/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
THE ELASTOMERIC REACTION PRODUCT OF 0.6-1.6 EQUIVALENT OF DIALLYLIDENE PENTAERYTHRITOL PER EACH EQUIVALENT OF A POLYESTER HAVING A NUMBER AVERAGE MOLECULAR WEIGHT IN THE RANGE OF ABOUT 1,000-4,000 AND HAVING A HYDROXYL NUMBER IN THE RANGE OF ABOUT 20-55 AND AN ACID NUMBER IN THE RANGE OF ABOUT 2-15, AND WHEN SAID POLYESTER IS A CARBOXYL TERMINATED POLYESTER, HAVING A HYDROXYL NUMBER IN THE RANGE OF ABOUT 2 TO 15 AND AN ACID NUMBER IN THE RANGE OF ABOUT 20 TO 55, SAID POLYESTER BEING THE CONDENSATION PRODUCT OF A SATURATED GLYCOL SELECTED FROM THE GROUP CONSISTING OF 1,3-BUTYLENE GLYCOL, 1,4BUTYLENE GLYCOL, DIETHYLENE GLYCOL, AND 1,5-PENTALENE GLYCOL, A SATURATED DICARBOXYLIC ACID CONTAINING 6-10 CARBON ATOMS SELECTED FROM THE GROUP CONSISTING OF ADIPIC, SEBACIC, AZELAIC, AND METHYL ADIPIC ACIDS, AND A DICARBOXYLIC ACID CONTAINING A SINGLE UNSATURATED BOND AND NO MORE THAN 8 CARBON ATOMS, SAID SATURATED ACID AND UNSATURATED ACID BEING PRESENT IN A MOLE RATIO IN THE RANGE OF 1:1 TO 6:1.
Claim 2
Dependent Claim
163 words
THE ELASTOMERIC REACTION PRODUCT OF 0.6-1.6 EQUIVALENT OF DIALLYLIDENE PENTAERYTHRITOL PER EACH EQUIVALENT OF A POLYESTER HAVING A NUMBER AVERAGE MOLECULAR WEIGHT IN THE RANGE OF ABOUT 1,000-4,000 AND HAVING A HYDROXYL NUMBER IN THE RANGE OF ABOUT 20-55 AND AN ACID NUMBER IN THE RANGE OF ABOUT 2-15, AND WHEN SAID POLYESTER IS A CARBOXYL TERMINATED POLYESTER, HAVING A HYDROXYL NUMBER IN THE RANGE OF ABOUT 2 TO 15 AND AN ACID NUMBER IN THE RANGE OF ABOUT 20 TO 55, SAID POLYESTER BEING THE CONDENSATION PRODUCT OF A SATURATED GLYCOL SELECTED FROM THE GROUP CONSISTING OF 1,3-BUTYLENE GLYCOL, 1,4BUTYLENE GLYCOL, DIETHYLENE GLYCOL, AND 1,5-PENTALENE GLYCOL, A SATURATED DICARBOXYLIC ACID CONTAINING 6-10 CARBON ATOMS SELECTED FROM THE GROUP CONSISTING OF ADIPIC, SEBACIC, AZELAIC, AND METHYL ADIPIC ACIDS, AND A DICARBOXYLIC ACID CONTAINING A SINGLE UNSATURATED BOND AND NO MORE THAN 8 CARBON ATOMS, SAID SATURATED ACID AND UNSATURATED ACID BEING PRESENT IN A MOLE RATIO IN THE RANGE OF 1:1 TO 6:1.
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) | 1964-03-06 | 1964-09-05 | 1965-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-06 | 1968-09-05 | 1969-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-06 | 1972-09-05 | 1973-03-07 | $7700.00 | Window Closed / Lapsed |