US3094510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-crystallizing polyester, and polyurethane made therefrom
Assignee: Armstrong World Industries Inc
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Filing: 1960-07-27
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Granted: 1963-06-18
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Expires: 1980-07-27
Abstract
No abstract record available.
Inventors
- 👤 John A Parker
- 👤 Versnel John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:15
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/16; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/42; C08G18/4236; C08G18/4238
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A NON-CRYSTALLIZING POLYESTER SUITABLE FOR FORMING A RELATIVELY TEMPERATURE-INSENSITIVE POLYURETHANE COMPRISING THE REACTION PRODUCT OF ADIPIC ACID AND SUFFICIENT OF A MIXTURE OF 1,4-BUTANEDIOL AND 2,2-DIMETHYL-1,3-PROPYLENE GLYCOL TO REACT WITH ALL THE ACID GROUPS IN THE ADIPIC ACID, SAID MIXTURE CONTAINING 40-60% BY WEIGHT 1,4-BUTANEDIOL, SAID POLYESTER HAVING AN ACID NUMBER IN THE RANGE OF 1.5-2.5 AND HYDROXYL NUMBER IN THE RANGE OF 50-70.
Claim 2
Dependent Claim
64 words
A NON-CRYSTALLIZING POLYESTER SUITABLE FOR FORMING A RELATIVELY TEMPERATURE-INSENSITIVE POLYURETHANE COMPRISING THE REACTION PRODUCT OF ADIPIC ACID AND SUFFICIENT OF A MIXTURE OF 1,4-BUTANEDIOL AND 2,2-DIMETHYL-1,3-PROPYLENE GLYCOL TO REACT WITH ALL THE ACID GROUPS IN THE ADIPIC ACID, SAID MIXTURE CONTAINING 40-60% BY WEIGHT 1,4-BUTANEDIOL, SAID POLYESTER HAVING AN ACID NUMBER IN THE RANGE OF 1.5-2.5 AND HYDROXYL NUMBER IN THE RANGE OF 50-70.
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) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |