US3107235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising a polyester, dichlorobenzidine and 3, 3'-dimethyl-4, 4'-diphenylene dhsocyanate and tire made therefrom
Assignee: Goodyear Tire and Rubber Co
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Filing: 1958-04-07
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Granted: 1963-10-15
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Expires: 1978-04-07
Abstract
No abstract record available.
Inventors
- 👤 William M Larson
- 👤 Thomas G Mastin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:51
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/74; C08G18/76; C08G18/7657; C08G18/7685; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/42; C08G18/4236; C08G18/4238; C08G2380/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
AS A NEW COMPOSITION OF MATTER THE LIQUID REACTION MIXTURE COMPRISING A POLYESTER PREPARED FROM ADIPIC ACID AND A GLYCOL SELECTED FROM AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF ETHYLENE GLYCOL AND PROPYLENE GLYCOL WHEREIN THE GLYCOLS ARE USED IN A MOL PERCENT RATIO OF ETHYLENE GLYCOL TO PROPYLENE GLYCOL RANGING FROM 80/20 TO 100/0 SAID POLYESTER HAVING A MOLECULAR WEIGHT OF FROM 1500 TO 2500 A HYDROXYL NUMBER OF FROM 45 TO 75 AND AN ACID NUMBER NOT GREATER THAN 5, FROM .1 TO .8 MOL OF DICHLOROBENZIDINE PER MOL OF POLYESTER AND 3,3''DIMETHYL-4,4''-DIPHENYLENE DIISOCYANATE BEING EMPLOYED IN A MOLAR EXCESS OF AT LEAST 10% OF THE COMBINED MOLECULAR AMOUNTS OF THE POLYESTER AND THE ORTHODICHLOROBENZIDINE.
Claim 2
Dependent Claim
119 words
AS A NEW COMPOSITION OF MATTER THE LIQUID REACTION MIXTURE COMPRISING A POLYESTER PREPARED FROM ADIPIC ACID AND A GLYCOL SELECTED FROM AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF ETHYLENE GLYCOL AND PROPYLENE GLYCOL WHEREIN THE GLYCOLS ARE USED IN A MOL PERCENT RATIO OF ETHYLENE GLYCOL TO PROPYLENE GLYCOL RANGING FROM 80/20 TO 100/0 SAID POLYESTER HAVING A MOLECULAR WEIGHT OF FROM 1500 TO 2500 A HYDROXYL NUMBER OF FROM 45 TO 75 AND AN ACID NUMBER NOT GREATER THAN 5, FROM .1 TO .8 MOL OF DICHLOROBENZIDINE PER MOL OF POLYESTER AND 3,3''DIMETHYL-4,4''-DIPHENYLENE DIISOCYANATE BEING EMPLOYED IN A MOLAR EXCESS OF AT LEAST 10% OF THE COMBINED MOLECULAR AMOUNTS OF THE POLYESTER AND THE ORTHODICHLOROBENZIDINE.
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) | 1966-10-14 | 1967-04-15 | 1967-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-14 | 1971-04-15 | 1971-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-14 | 1975-04-15 | 1975-10-15 | $7700.00 | Window Closed / Lapsed |