US3053784A
Expired / Lapsed
US
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Adhesive composition comprising sodium substituted bark derivative and sodium salt of polymethylol phenol
Assignee: Rayonier Inc
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Filing: 1961-03-20
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Granted: 1962-09-11
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Expires: 1981-03-20
Abstract
No abstract record available.
Inventors
- 👤 Franklin W Herrick
- 👤 Louis H Bock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:18
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
97 words
THERMOSETTING RESIN ADHESIVE COMPOSITION COMPRISING A SODIUM SUBSTITUTED BARK DERIVATIVE OBTAINED BY EXTRACTING THE BARK OF A CONIFEROUS TREE WITH FROM 0.02 TO 1.5 PART BY WEIGHT OF AMMONIA PER PART OF BONE DRY BARK IN AQUEOUS SOLUTION FOR AT LEAST 15 MINUTES AT A TEMPERATURE OF FROM 17* TO 170*C., FORMING A PRODUCT HAVING A FORMALDEHYDE REACTIVITY OF AT LEAST 5% AND REACTING THE AMMONIA EXTRACT WITH SODIUM HYDROXIDE TO FORM A SODIUM SUBSTITUTED BARK DERIVATIVE, AND A SODIUM SALT POLYMETHYLOL PHENOL IN WHICH THE MOLAR RATIO OF COMBINED FORMALDEHYDE TO PHENOL IS 2.55 TO 2.6.
Claim 2
Dependent Claim
97 words
THERMOSETTING RESIN ADHESIVE COMPOSITION COMPRISING A SODIUM SUBSTITUTED BARK DERIVATIVE OBTAINED BY EXTRACTING THE BARK OF A CONIFEROUS TREE WITH FROM 0.02 TO 1.5 PART BY WEIGHT OF AMMONIA PER PART OF BONE DRY BARK IN AQUEOUS SOLUTION FOR AT LEAST 15 MINUTES AT A TEMPERATURE OF FROM 17* TO 170*C., FORMING A PRODUCT HAVING A FORMALDEHYDE REACTIVITY OF AT LEAST 5% AND REACTING THE AMMONIA EXTRACT WITH SODIUM HYDROXIDE TO FORM A SODIUM SUBSTITUTED BARK DERIVATIVE, AND A SODIUM SALT POLYMETHYLOL PHENOL IN WHICH THE MOLAR RATIO OF COMBINED FORMALDEHYDE TO PHENOL IS 2.55 TO 2.6.
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) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |