US2725366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storable isocyanate-modified polyesters
Assignee: Goodyear Tire and Rubber Co
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Filing: 1952-09-29
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Granted: 1955-11-29
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Expires: 1972-09-29
Abstract
No abstract record available.
Inventors
- 👤 Nelson V Seeger
- 👤 Thomas G Mastin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:43
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/77; C08G18/78; C08G18/79; C08G18/798; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/42; C08G18/4236; C08G18/4238; C08G18/60; C08G18/606; Y; Y10; Y10S; Y10S528/00; Y10S528/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
THE PROCESS FOR MAKING A CURED ELASTOMERIC COMPOSITION WHICH COMPRISES REACTING (1) THE ELASTOMERIC REACTION PRODUCT OF (A) A MATERIAL PREPARED FROM BIFUNCTIONAL INGREDIENTS INCLUDING AT LEAST ONE DIBASIC CARBOXYLIC ACID AND AT LEAST ONE COMPLEMENTARY BIFUNCTIONAL REACTANT SELECTED FROM THE GROUP CONSISTING OF GLYCOLS, AMINO ALCOHOLS, AND DIAMINES, THE HYDROGEN-BEARING AMINO GROUPS BEING PRESENT IN AN AMOUNT NOT TO EXCEED 30% OF THE TOTAL NUMBER OF HYDROGEN-BEARING AMINO GROUPS AND HYDROXYL GROUPS PRESENT, SAID MATERIAL HAVING A HYDROXYL NUMBER FROM 30 TO 140 AND AN ACID NUMBER FROM 0 TO 12, AND (B) AT LEAST ONE DIISOCYANATE SELECTED FROM THE GROUP CONSISTING OF HEXAMETHYLENE DIISOCYANATE AND TETRAMETHYLENE DIISOCYANATE, THE DIISOCYANATE BEING USED IN AN AMOUNT RANGING FROM 1.00 TO 1.20 MOLS PER MOL OF SAID MATERIAL, WITH (2) A SUFFICIENT AMOUNT OF AT LEAST ONE POLYISOCYANATE TO BRING THE TOTAL OF -NCO EQUIVALENTS PRESENT IN SAID CURED COMPOSITION TO FROM 2.80 TO 3.20 EQUIVALENTS OF -NCO PER MOL OF SAID MATERIAL.
Claim 2
Dependent Claim
162 words
THE PROCESS FOR MAKING A CURED ELASTOMERIC COMPOSITION WHICH COMPRISES REACTING (1) THE ELASTOMERIC REACTION PRODUCT OF (A) A MATERIAL PREPARED FROM BIFUNCTIONAL INGREDIENTS INCLUDING AT LEAST ONE DIBASIC CARBOXYLIC ACID AND AT LEAST ONE COMPLEMENTARY BIFUNCTIONAL REACTANT SELECTED FROM THE GROUP CONSISTING OF GLYCOLS, AMINO ALCOHOLS, AND DIAMINES, THE HYDROGEN-BEARING AMINO GROUPS BEING PRESENT IN AN AMOUNT NOT TO EXCEED 30% OF THE TOTAL NUMBER OF HYDROGEN-BEARING AMINO GROUPS AND HYDROXYL GROUPS PRESENT, SAID MATERIAL HAVING A HYDROXYL NUMBER FROM 30 TO 140 AND AN ACID NUMBER FROM 0 TO 12, AND (B) AT LEAST ONE DIISOCYANATE SELECTED FROM THE GROUP CONSISTING OF HEXAMETHYLENE DIISOCYANATE AND TETRAMETHYLENE DIISOCYANATE, THE DIISOCYANATE BEING USED IN AN AMOUNT RANGING FROM 1.00 TO 1.20 MOLS PER MOL OF SAID MATERIAL, WITH (2) A SUFFICIENT AMOUNT OF AT LEAST ONE POLYISOCYANATE TO BRING THE TOTAL OF -NCO EQUIVALENTS PRESENT IN SAID CURED COMPOSITION TO FROM 2.80 TO 3.20 EQUIVALENTS OF -NCO PER MOL OF SAID MATERIAL.
References Cited (Backward Citations)
US2606162A
Cited
US2621166A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-28 | 1959-05-30 | 1959-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-28 | 1963-05-30 | 1963-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-28 | 1967-05-30 | 1967-11-29 | $7700.00 | Window Closed / Lapsed |