US3298995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyesterurethane elastomers having improved color characteristics
Assignee: Goodrich Corp
•
Filing: 1964-01-21
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Granted: 1967-01-17
•
Expires: 1984-01-21
Abstract
No abstract record available.
Inventors
- 👤 Robert R Bloor
- 👤 Edmond G Kolycheck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:00
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/06; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3819; C08G18/3821; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/175
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A POLYESTERURETHANE ELASTOMER HAVING IMPROVED COLOR COMPRISING THE REACTION PRODUCT OF A MIXTURE OF (A) A HYDROXYL TERMINATED POLYESTER OF A SATURATED ALIPHATIC GLYCOL CONTAINING FROM 2 TO 10 CARBON ATOMS AND AN ALIPHATIC DICARBOXYLIC ACID CONTAINING FROM2 TO 10 CARBON ATOMS, SAID POLYESTER HAVING AN AVERAGE MOLECULAR WEIGHT BETWEEN ABOUT 400 AND 5000 AND (B) FROM 0.03 TO 0.4% BASED ON THE WEIGHT OF THE TOTAL OF (A) AND (C) OF AN ACETIC ACID SUBSTITUTED ALIPHATIC ALKYLENE AMINE HAVING FROM 1 TO 5 ACETIC ACID CONSTITUENTS, FROM 0 TO 3 HYDROXYL GROUPS ATTACHED TO TERMINAL CARBON GROUPS OF AN ALKYLENE GROUP, ACTIVE HYDROGEN ATOMS ONLY IN SAID ACETIC ACID GROUPS AND HYDROXYL GROUPS AND 1 TO 3 AMINE NITROGEN ATOM VALENCES ARE CONNECTED ONLY TO CARBON ATOMS, WITH (C) AT LEAST 0.7 MOL EQUIVALENT PER MOL OF POLYESTER OF AN AROMATIC DISSOCYANATE.
Claim 2
Dependent Claim
143 words
A POLYESTERURETHANE ELASTOMER HAVING IMPROVED COLOR COMPRISING THE REACTION PRODUCT OF A MIXTURE OF (A) A HYDROXYL TERMINATED POLYESTER OF A SATURATED ALIPHATIC GLYCOL CONTAINING FROM 2 TO 10 CARBON ATOMS AND AN ALIPHATIC DICARBOXYLIC ACID CONTAINING FROM2 TO 10 CARBON ATOMS, SAID POLYESTER HAVING AN AVERAGE MOLECULAR WEIGHT BETWEEN ABOUT 400 AND 5000 AND (B) FROM 0.03 TO 0.4% BASED ON THE WEIGHT OF THE TOTAL OF (A) AND (C) OF AN ACETIC ACID SUBSTITUTED ALIPHATIC ALKYLENE AMINE HAVING FROM 1 TO 5 ACETIC ACID CONSTITUENTS, FROM 0 TO 3 HYDROXYL GROUPS ATTACHED TO TERMINAL CARBON GROUPS OF AN ALKYLENE GROUP, ACTIVE HYDROGEN ATOMS ONLY IN SAID ACETIC ACID GROUPS AND HYDROXYL GROUPS AND 1 TO 3 AMINE NITROGEN ATOM VALENCES ARE CONNECTED ONLY TO CARBON ATOMS, WITH (C) AT LEAST 0.7 MOL EQUIVALENT PER MOL OF POLYESTER OF AN AROMATIC DISSOCYANATE.
References Cited (Backward Citations)
US2413857A
Cited
US3228904A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |