US2878197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thixotropic phenol-aldehyde adhesive composition and method of making same
Assignee: American Marietta Co
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Filing: 1954-02-18
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Granted: 1959-03-17
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Expires: 1974-02-18
Abstract
No abstract record available.
Inventors
- 👤 Gene F Baxter
- 👤 Peter K Schoening
- 👤 Henry M Preusser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:55
CPC Classifications
C; C09; C09J; C09J161/00; C09J161/04; C09J161/06; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
AN ADHESIVE COMPOSITION OF THIXOTROPIC CONSISTENCY COMPRISING AN AQUEOUS ALKALINE SOLUTION OF THE THERMOSETTING RESIN-CONDENSATION PRODUCT OF A MONOHYDRIC PHENOL SELECTED FROM THE GROUP CONSISTING OF PHENOL PER SE, METAL-CRESOL, AND 3,5-XYLENOL, AND AN ALDEHYDE IN WHICH THE ALDEHYDE RADICAL IS THE SOLE REACTIVE RADICAL, A SWELLED LIGNIN-CONTAINING EXTENDER, A BULKING FILLER, SAID ALKALINE SOLUTION OF THE PHENOL-ALDEHYDE RESIN HAVING A RESIN SOLIDS-CONTENT BETWEEN THE LIMITS OF ABOUT 43% AND ABOUT 47% WHEN THE RESIN SOLUTION HAS A VISCOSITY BETWEEN THE LIMITS OF ABOUT 500 AND ABOUT 2500 CENTIPOISES, AND SUFFICIENT WATER TO PROVIDE SAID ADHESIVE COMPOSITION WITH A TOTAL SOLIDS CONTENT BETWEEN ABOUT 43% AND ABOUT 51% TAKEN ON THE WEIGHT OF THE ADHESIVE COMPOSITION, THE RATIO OF THE SWELLED EXTENDER TO THE RESIN SOLIDS PRESENT IN THE ALKALINE SOLUTION OF THE THERMOSETTING RESIN BEING BETWEEN 0.3:1.0 AND 0.45:1.0.
Claim 2
Dependent Claim
140 words
AN ADHESIVE COMPOSITION OF THIXOTROPIC CONSISTENCY COMPRISING AN AQUEOUS ALKALINE SOLUTION OF THE THERMOSETTING RESIN-CONDENSATION PRODUCT OF A MONOHYDRIC PHENOL SELECTED FROM THE GROUP CONSISTING OF PHENOL PER SE, METAL-CRESOL, AND 3,5-XYLENOL, AND AN ALDEHYDE IN WHICH THE ALDEHYDE RADICAL IS THE SOLE REACTIVE RADICAL, A SWELLED LIGNIN-CONTAINING EXTENDER, A BULKING FILLER, SAID ALKALINE SOLUTION OF THE PHENOL-ALDEHYDE RESIN HAVING A RESIN SOLIDS-CONTENT BETWEEN THE LIMITS OF ABOUT 43% AND ABOUT 47% WHEN THE RESIN SOLUTION HAS A VISCOSITY BETWEEN THE LIMITS OF ABOUT 500 AND ABOUT 2500 CENTIPOISES, AND SUFFICIENT WATER TO PROVIDE SAID ADHESIVE COMPOSITION WITH A TOTAL SOLIDS CONTENT BETWEEN ABOUT 43% AND ABOUT 51% TAKEN ON THE WEIGHT OF THE ADHESIVE COMPOSITION, THE RATIO OF THE SWELLED EXTENDER TO THE RESIN SOLIDS PRESENT IN THE ALKALINE SOLUTION OF THE THERMOSETTING RESIN BEING BETWEEN 0.3:1.0 AND 0.45:1.0.
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) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |