US3083183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing phenolic resins using zinc borates as condensing agents
Assignee: Hexion Inc
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Filing: 1960-03-03
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Granted: 1963-03-26
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Expires: 1980-03-03
Abstract
No abstract record available.
Inventors
- 👤 Boschert Ulrich
- 👤 Robert B Dean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:59
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/04; C08G8/08; C08G8/10; C08G8/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
IN MAKING A RESINOUS CONDENSATION PRODUCT, THE PROCESS WHICH COMPRISES FORMING AN AQUEOUS MIXTURE OF A PHENOL, FORMALDEHYDE AND A CONDENSATION CATALYST CONSISTING ESSENTIALLY OF THE BORATE OF A METAL SELECTED FROM THE GROUP CONSISTING OF ZINC, MANGANESE AND NICKEL IN THE PROPORTION OF ABOUT 0.1-5 PARTS BY WEIGHT OF THE BORATE FOR 100 PARTS OF THE PHENOL, HEATING THE SAID MIXTURE UNTIL CONDENSATION OCCURS TO AN INTERMEDIATE THAT IS THERMOSETTING UNDER TEST AT A TEMPERATURE OF 150*C., AND THEN CONTINUING THE HEATING OF THE INTERMEDIATE AND DISTILLING WATER THEREFROM AT A TEMPERATURE BELOW THAT OF THERMOSETTING UNTIL THE SAID INTERMEDIATE IS CONVERTED TO A THERMOPLASTIC PRODUCT.
Claim 2
Dependent Claim
107 words
IN MAKING A RESINOUS CONDENSATION PRODUCT, THE PROCESS WHICH COMPRISES FORMING AN AQUEOUS MIXTURE OF A PHENOL, FORMALDEHYDE AND A CONDENSATION CATALYST CONSISTING ESSENTIALLY OF THE BORATE OF A METAL SELECTED FROM THE GROUP CONSISTING OF ZINC, MANGANESE AND NICKEL IN THE PROPORTION OF ABOUT 0.1-5 PARTS BY WEIGHT OF THE BORATE FOR 100 PARTS OF THE PHENOL, HEATING THE SAID MIXTURE UNTIL CONDENSATION OCCURS TO AN INTERMEDIATE THAT IS THERMOSETTING UNDER TEST AT A TEMPERATURE OF 150*C., AND THEN CONTINUING THE HEATING OF THE INTERMEDIATE AND DISTILLING WATER THEREFROM AT A TEMPERATURE BELOW THAT OF THERMOSETTING UNTIL THE SAID INTERMEDIATE IS CONVERTED TO A THERMOPLASTIC PRODUCT.
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) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |