US2606889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding compositions containing two-stage phenol-aldehyde resins and an alkaline earth metal borate
Assignee: Imperial Chemical Industries Ltd
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Filing: 1949-04-18
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Granted: 1952-08-12
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Expires: 1969-04-18
Abstract
No abstract record available.
Inventors
- 👤 Ward Terence
- 👤 Williams James Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:08
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/28; C08K; C08K3/00; C08K3/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A PROCESS FOR THE PRODUCTION OF IMPROVED COMPOSITIONS FROM MOLDABLE, THERMOSETTING RESIN COMPOSITIONS IN WHICH THE RESIN COMPONENT IS A 2STAGE PHENOL-ALDEHYDE RESIN FORMED BY COMBINING AN UNMODIFIED NOVOLAC AND HEXAMETHYLENE TETRAMINE WHICH COMPRISES INCORPORATING INTO THE RESIN COMPOSITION, AN ALKALINE EARTH BORATE IN AN AMOUNT OF FROM 1 TO 20% BY WEIGHT OF THE RESIN COMPONENT.
Claim 2
Dependent Claim
57 words
A PROCESS FOR THE PRODUCTION OF IMPROVED COMPOSITIONS FROM MOLDABLE, THERMOSETTING RESIN COMPOSITIONS IN WHICH THE RESIN COMPONENT IS A 2STAGE PHENOL-ALDEHYDE RESIN FORMED BY COMBINING AN UNMODIFIED NOVOLAC AND HEXAMETHYLENE TETRAMINE WHICH COMPRISES INCORPORATING INTO THE RESIN COMPOSITION, AN ALKALINE EARTH BORATE IN AN AMOUNT OF FROM 1 TO 20% BY WEIGHT OF THE RESIN COMPONENT.
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) | 1955-08-12 | 1956-02-11 | 1956-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-12 | 1960-02-11 | 1960-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-12 | 1964-02-11 | 1964-08-12 | $7700.00 | Window Closed / Lapsed |