US3213045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenolic adhesives and method
Assignee: Georgia-Pacific LLC
•
Filing: 1960-09-30
•
Granted: 1965-10-19
•
Expires: 1980-09-30
Abstract
No abstract record available.
Inventors
- 👤 James A Klein
- 👤 Nicholas V Poletika
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:49
CPC Classifications
C; C09; C09J; C09J161/00; C09J161/04; C09J161/06; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31942; Y10T428/31949; Y10T428/31957; Y10T428/3196
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
99 words
IN A PROCESS OF MAKING STABLE, HIGH VISCOSITY, HIGHLY REACTIVE PHENOLIC RESIN ADHESIVES, THE STEPS OF REACTING REDWOOD BARK DUST WITH ALKALI-METAL HYDROXIDE AT A RELATIVELY LOW TEMPERATURE RANGING FROM ABOUT 100*F. TO 160*F., WITHOUT THE ADDITION OF EXTERNAL HEAT, AND DISPERSING IN THE PRODUCT OF SAID REACTION AN AQUEOUS ALKALINE PHENOL-ALDEHYDE RESIN CHARACTERIZED BY A PREDOMINANTLY HIGH MOLECULAR WEIGHT AND HIGH DEGREE OF ADVANCEMENT OF POLYMERIZATION, SAID RESIN CHARACTERISTICS BEING EVIDENCED BY A VISCOSITY OF THE RESIN AT 77*F. OF FROM 200 TO 5000 CENTIPOISES AND THE FORMATION OF A PRECIPITATE UPON ADDITION OF ETHANOL TO THE RESIN.
Claim 2
Dependent Claim
99 words
IN A PROCESS OF MAKING STABLE, HIGH VISCOSITY, HIGHLY REACTIVE PHENOLIC RESIN ADHESIVES, THE STEPS OF REACTING REDWOOD BARK DUST WITH ALKALI-METAL HYDROXIDE AT A RELATIVELY LOW TEMPERATURE RANGING FROM ABOUT 100*F. TO 160*F., WITHOUT THE ADDITION OF EXTERNAL HEAT, AND DISPERSING IN THE PRODUCT OF SAID REACTION AN AQUEOUS ALKALINE PHENOL-ALDEHYDE RESIN CHARACTERIZED BY A PREDOMINANTLY HIGH MOLECULAR WEIGHT AND HIGH DEGREE OF ADVANCEMENT OF POLYMERIZATION, SAID RESIN CHARACTERISTICS BEING EVIDENCED BY A VISCOSITY OF THE RESIN AT 77*F. OF FROM 200 TO 5000 CENTIPOISES AND THE FORMATION OF A PRECIPITATE UPON ADDITION OF ETHANOL TO THE RESIN.
Claim 3
Dependent Claim
97 words
A STABLE HIGH VISCOSITY PHENOLIC RESIN ADHESIVE ADAPTED FOR MAKING BOIL-RESISTANT HOT-PRESS PLYWOOD COMPRISING THE REACTION PRODUCT OF REDWOOD BARK DUST WITH ALKALI-METAL HYDROXIDE HAVING DISPERSED THEREIN A PRE DOMINANTLY HIGH MOLECULAR WEIGHT, AQUEOUS, ALKALINE PHE NOL-ALDEHYDE CHARACTERIZED BY A DESIRABLE HIGH VISCOSITY AND BODY ADAPTED TO PROVIDE SPREADING WITH MINUMUM PENETRATION, AND A PREDOMINANTLY HIGH MOLECULAR WEIGHT AND HIGH DEGREE OF ADVANCEMENT OF POLYMERIZATION, SAID RESIN CHARACTERISTICS BEING EVIDENCED BY A VISCOSITY OF THE RESIN AT 77*F. OF FROM 200 TO 5000 CENTIPOISES AND THE FORMATION OF A PRECIPITATE UPON ADDITION OF ETHANO TO THE RESIN.
Claim 4
Dependent Claim
97 words
A STABLE HIGH VISCOSITY PHENOLIC RESIN ADHESIVE ADAPTED FOR MAKING BOIL-RESISTANT HOT-PRESS PLYWOOD COMPRISING THE REACTION PRODUCT OF REDWOOD BARK DUST WITH ALKALI-METAL HYDROXIDE HAVING DISPERSED THEREIN A PRE DOMINANTLY HIGH MOLECULAR WEIGHT, AQUEOUS, ALKALINE PHE NOL-ALDEHYDE CHARACTERIZED BY A DESIRABLE HIGH VISCOSITY AND BODY ADAPTED TO PROVIDE SPREADING WITH MINUMUM PENETRATION, AND A PREDOMINANTLY HIGH MOLECULAR WEIGHT AND HIGH DEGREE OF ADVANCEMENT OF POLYMERIZATION, SAID RESIN CHARACTERISTICS BEING EVIDENCED BY A VISCOSITY OF THE RESIN AT 77*F. OF FROM 200 TO 5000 CENTIPOISES AND THE FORMATION OF A PRECIPITATE UPON ADDITION OF ETHANO TO THE RESIN.
References Cited (Backward Citations)
US2574785A
Cited
US2310010A
Cited
US2360376A
Cited
US2380214A
Cited
US2424383A
Cited
US2574784A
Cited
US2878197A
Cited
US3025250A
Cited
US2926722A
Cited
US3053784A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |