Patent US3298973A successfully refreshed from Google Patents.
US3298973A
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US
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Phenolic foam compositions
Assignee: Union Carbide Corp
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Filing: 1963-10-10
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Granted: 1967-01-17
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Expires: 1983-10-10
Abstract
No abstract record available.
Inventors
- 👤 Richard W Quarles
- 👤 John A Baumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:45
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/12; C08J9/14; C08J9/143; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/54; C08G18/542; C08K; C08K3/00; C08K3/38; C08K5/00; C08K5/04; C08K5/09; G; G06; G06G; G06G7/00; G06G7/48; G06G7/52; G07; G07C; G07C3/00; G07C3/14; C08G2101/00; C08J2363/00; C08J2375/00; C08J2375/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A METHOD FOR PRODUCING NON-BURNING, NON-PUNKING PHENOLIC FOAMS COMPRISING ADMIXING AN ORGANIC FOAMING AGENT WITH A LIQUID PHENOL-ALDEHYDE RESOLE HAVING A VISCOSITY FROM 200 TO 300,000 CENTIPOISES AT 25*C. AND AT LEAST TWO ACIDIC AGENTS, ONE OF WHICH IS BORIC ACID, AND ANOTHER OF WHICH IS AN ORGANIC HYDROXY ACID IN WHICH THE HYDROXYL GROUP IS ON A CARBON ATOM NO MORE THAN ONE CARBON ATOM REMOVED FROM A CARBOXYL GROUP IN AMOUNTS OF AT LEAST 2 PARTS BY WEIGHT OF EACH ACID PER HUNDRED PARTS BY WEIGHT OF SAID RESOLE AND SUFFICIENT TO INITIATE THE FOAMING OF THE RESULTING MIXTURE AND CURING THE RESOLE TO PRODUCE A STABLE CURED FOAM.
Claim 2
Independent Claim
111 words
A METHOD FOR PRODUCING NON-BURNING, NON-PUNKING PHENOLIC FOAMS COMPRISING ADMIXING AN ORGANIC FOAMING AGENT WITH A LIQUID PHENOL-ALDEHYDE RESOLE HAVING A VISCOSITY FROM 200 TO 300,000 CENTIPOISES AT 25*C. AND AT LEAST TWO ACIDIC AGENTS, ONE OF WHICH IS BORIC ACID, AND ANOTHER OF WHICH IS AN ORGANIC HYDROXY ACID IN WHICH THE HYDROXYL GROUP IS ON A CARBON ATOM NO MORE THAN ONE CARBON ATOM REMOVED FROM A CARBOXYL GROUP IN AMOUNTS OF AT LEAST 2 PARTS BY WEIGHT OF EACH ACID PER HUNDRED PARTS BY WEIGHT OF SAID RESOLE AND SUFFICIENT TO INITIATE THE FOAMING OF THE RESULTING MIXTURE AND CURING THE RESOLE TO PRODUCE A STABLE CURED FOAM.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |