Patent US2494537A successfully refreshed from Google Patents.
US2494537A
Expired / Lapsed
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Cold-setting resorcinol glue composition and process of preparation
Assignee: Individual
•
Filing: 1946-07-26
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Granted: 1950-01-17
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Expires: 1966-07-26
Abstract
No abstract record available.
Inventors
- 👤 Glen E Babcock
- 👤 Allan K Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:20
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/04; C08G8/08; C08G8/20; C08G8/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A PROCESS FOR PREPARING A COLD SETTING GLUE COMPRISING REACTING RESORCINOL WITH FORMALDEHYDE IN THE RATIO OF NOT MORE THAN TWO MOLS OF RESORCINOL TO ONE OF FORMALDEHYDE AND NOT LESS THAN FIVE MOLS OF RESORCINOL TO FOUR MOLS OF FORMALDEHYDE, IN THE PRESENCE OF AN ACID CATALYST, ADJUSTING THE PH OF THE RESIN TO BETWEEN 7.1 AND 7.7, WITH AQUEOUS ALKALI, MIXING THE RESIN WITH CORN GLUTEN, IN THE RANGE OF ONE TO TWO PARTS OF RESIN TO ONE PART GLUTEN, AND WITH ALCOHOL AND FORMALDEHYDE, THE FORMALDEHYDE ADDED BEING SUFFICIENT TO GIVE A FINAL RATIO OF FORMALDEHYDE TO RESORCINOL OF 1.1. TO 2.5 MOLS FORMALDEHYDE TO ONE MOL OF RESORCINOL.
Claim 2
Dependent Claim
112 words
A PROCESS FOR PREPARING A COLD SETTING GLUE COMPRISING REACTING RESORCINOL WITH FORMALDEHYDE IN THE RATIO OF NOT MORE THAN TWO MOLS OF RESORCINOL TO ONE OF FORMALDEHYDE AND NOT LESS THAN FIVE MOLS OF RESORCINOL TO FOUR MOLS OF FORMALDEHYDE, IN THE PRESENCE OF AN ACID CATALYST, ADJUSTING THE PH OF THE RESIN TO BETWEEN 7.1 AND 7.7, WITH AQUEOUS ALKALI, MIXING THE RESIN WITH CORN GLUTEN, IN THE RANGE OF ONE TO TWO PARTS OF RESIN TO ONE PART GLUTEN, AND WITH ALCOHOL AND FORMALDEHYDE, THE FORMALDEHYDE ADDED BEING SUFFICIENT TO GIVE A FINAL RATIO OF FORMALDEHYDE TO RESORCINOL OF 1.1. TO 2.5 MOLS FORMALDEHYDE TO ONE MOL OF RESORCINOL.
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) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |