US3316140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermosetting resins prepared by reacting formaldehyde with the reaction product of a phenol with chloromethylated diphenyl oxide
Assignee: Dow Chemical Co
•
Filing: 1963-04-03
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Granted: 1967-04-25
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Expires: 1983-04-03
Abstract
No abstract record available.
Inventors
- 👤 Lawrence F Sonnabend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:19
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/28; C08G16/00; C08G16/06; C08G61/00; C08G61/12; C08G65/00; C08G65/34; C08G65/38; C08G65/40; C08G75/00; C08G75/20; C08G75/23; C08G8/04; C08G8/08; C08L; C08L71/00; C08L81/00; C08L81/06; C09; C09J; C09J161/00; C09J161/04; C09J161/06; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31627; Y10T428/31942; Y10T428/31949; Y10T428/31957; Y10T428/3196; Y10T428/31964; Y10T442/00; Y10T442/30; Y10T442/3472; Y10T442/3528; Y10T442/3569; Y10T442/3577
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
60 words
A METHOD FOR PREPARING A THERMOSETTING RESIN WHICH COMPRISES REACTING TOGETHER FOR BETWEN BOUT 1/4 AND 4 HOURS AT A TEMPERATURE OF FROM ABOUT 50 TO ABOUT 100*C. A FORMALDEHYDE-YIELDING MATERIAL WITH AT LEAST TWO PHENOLIC ACTIVATED HYROGENS IN (A) A PHENOLIC COMPOUND DERIVED BY CONDENSING (1) FROM 1 TO 10 MOLES OF A HYDROXY AROMATIC COMPOUND HAVING THE FORMULA
Claim 2
Independent Claim
60 words
A METHOD FOR PREPARING A THERMOSETTING RESIN WHICH COMPRISES REACTING TOGETHER FOR BETWEN BOUT 1/4 AND 4 HOURS AT A TEMPERATURE OF FROM ABOUT 50 TO ABOUT 100*C. A FORMALDEHYDE-YIELDING MATERIAL WITH AT LEAST TWO PHENOLIC ACTIVATED HYROGENS IN (A) A PHENOLIC COMPOUND DERIVED BY CONDENSING (1) FROM 1 TO 10 MOLES OF A HYDROXY AROMATIC COMPOUND HAVING THE FORMULA
Claim 3
Dependent Claim
94 words
A THERMOSET RESIN COMPRISING THE REACTION PRODUCT OF FROM 1 TO 4 MOLES OF FORMALDEHYDE, DERIVED FROM A FORMALDEHYDE-YIELDING MATERIAL, PER MOLE OF (A) A CONDENSATION PRODUCT OF 1 MOLE OF BIS(CHLOROMETHYLATED) DIPHENYL OXIDE AND 1 TO 10 MOLES OF PHENOL HAVING AT LEAST TWO OF THE POSITIONS ORTHO AND PARA FREE OF SUBSTITUENTS AND (B) FROM 0 TO 150% BY WERIGHT OF (A) OF PHENOL, THE REACTION TO OBTAIN THE REACTION PROUDCT BEING CARRIED OUT AT A TEMPERATURE OF FROM ABOUT 50% TO ABOUT 100*C. FRO FROM ABOUT 1/4 TO ABOUT 4 HOURS.
Claim 4
Dependent Claim
94 words
A THERMOSET RESIN COMPRISING THE REACTION PRODUCT OF FROM 1 TO 4 MOLES OF FORMALDEHYDE, DERIVED FROM A FORMALDEHYDE-YIELDING MATERIAL, PER MOLE OF (A) A CONDENSATION PRODUCT OF 1 MOLE OF BIS(CHLOROMETHYLATED) DIPHENYL OXIDE AND 1 TO 10 MOLES OF PHENOL HAVING AT LEAST TWO OF THE POSITIONS ORTHO AND PARA FREE OF SUBSTITUENTS AND (B) FROM 0 TO 150% BY WERIGHT OF (A) OF PHENOL, THE REACTION TO OBTAIN THE REACTION PROUDCT BEING CARRIED OUT AT A TEMPERATURE OF FROM ABOUT 50% TO ABOUT 100*C. FRO FROM ABOUT 1/4 TO ABOUT 4 HOURS.
Claim 5
Dependent Claim
40 words
A LAMINATE PREPARED BY IMPREGNATING A PLURALITY OF STRATA WITH THE RESIN OF CALIM 2 AND HEATING THE SAME UNDER PRESSURE OF AT LEAST 200 P.S.I. AND AT FROM ABOUT 100*C. TO ABOUT 300*C. FOR FROM 1/2 TO 80 HOURS.
Claim 6
Dependent Claim
40 words
A LAMINATE PREPARED BY IMPREGNATING A PLURALITY OF STRATA WITH THE RESIN OF CALIM 2 AND HEATING THE SAME UNDER PRESSURE OF AT LEAST 200 P.S.I. AND AT FROM ABOUT 100*C. TO ABOUT 300*C. FOR FROM 1/2 TO 80 HOURS.
References Cited (Backward Citations)
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US2473145A
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US2482142A
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US2465299A
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US2448357A
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US3128259A
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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) | 1970-04-24 | 1970-10-24 | 1971-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-24 | 1974-10-24 | 1975-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-24 | 1978-10-24 | 1979-04-25 | $7700.00 | Window Closed / Lapsed |