US2735829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions containing a mixture of
Assignee: —
•
Filing: —
•
Granted: 1956-02-21
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Expires: 1973-02-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:27
CPC Classifications
C; C09; C09J; C09J163/00; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/226; C08G59/32; C08G59/38; C08K; C08K3/00; C08K3/34; C08K5/00; C08K5/04; C08K5/15; C08K5/151; C08K5/1515; C08L; C08L2666/00; C08L2666/54; Y; Y10; Y10S; Y10S238/00; Y10S238/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A COMPOSITION COMPRISING A FIRST GLYCIDYL POLYETHER OF A DIHYDRIC PHENOL IN ADMIXTURE WITH ABOUT AN ADDED 3% TO 20% BY WEIGHT OF A SECOND GLYCIDYL POLYETHER OF A DIHYDRIC PHENOL, WHICH POLYETHERS HAVE CHAIN OF ALTERNATING GLYCERYL AND DIVALENT AROMATIC RADICALS UNITED THROUGH ETHER OXYGEN WITH GLYCERYL RADICALS IN TERMINAL POSITION: SAID FIRST POLYETHER HAVING A DURRANS'' MERCURY METHOD MELTING POINT BELOW 25* C., HAVING A 1,2-EPOXY EQUIVALENCY BETWEEN 1.7 AND 2.0, AND CONTAINING 1 TO 1.5 OF THE AROMATIC RADICALS IN THE AVERAGE MOLECULE THEREOF; AND SAID SECOND POLYETHER HAVING A DURRANS'' MERCURY METHOD MELTING POINT ABOVE 75* C., HAVING A 1,2-EPOXY EQUIVALENCY OF 1.2 TO 1.8, AND CONTAINING AT LEAST 4 OF THE AROMATIC RADICALS IN THE AVERAGE MOLECULE THEREOF.
Claim 2
Dependent Claim
123 words
A COMPOSITION COMPRISING A FIRST GLYCIDYL POLYETHER OF A DIHYDRIC PHENOL IN ADMIXTURE WITH ABOUT AN ADDED 3% TO 20% BY WEIGHT OF A SECOND GLYCIDYL POLYETHER OF A DIHYDRIC PHENOL, WHICH POLYETHERS HAVE CHAIN OF ALTERNATING GLYCERYL AND DIVALENT AROMATIC RADICALS UNITED THROUGH ETHER OXYGEN WITH GLYCERYL RADICALS IN TERMINAL POSITION: SAID FIRST POLYETHER HAVING A DURRANS'' MERCURY METHOD MELTING POINT BELOW 25* C., HAVING A 1,2-EPOXY EQUIVALENCY BETWEEN 1.7 AND 2.0, AND CONTAINING 1 TO 1.5 OF THE AROMATIC RADICALS IN THE AVERAGE MOLECULE THEREOF; AND SAID SECOND POLYETHER HAVING A DURRANS'' MERCURY METHOD MELTING POINT ABOVE 75* C., HAVING A 1,2-EPOXY EQUIVALENCY OF 1.2 TO 1.8, AND CONTAINING AT LEAST 4 OF THE AROMATIC RADICALS IN THE AVERAGE MOLECULE THEREOF.
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) | 1959-02-20 | 1959-08-22 | 1960-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-20 | 1963-08-22 | 1964-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-20 | 1967-08-22 | 1968-02-21 | $7700.00 | Window Closed / Lapsed |