Patent US3268479A successfully refreshed from Google Patents.
US3268479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nitroso and oxime containing polymers
Assignee: Lord Corp
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Filing: 1961-09-06
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Granted: 1966-08-23
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Expires: 1981-09-06
Abstract
No abstract record available.
Inventors
- 👤 Rock F Martel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:44
CPC Classifications
C; C09; C09J; C09J161/00; C09J161/04; C09J161/06; C08; C08G; C08G12/00; C08G12/02; C08G12/40; C08G16/00; C08G16/02; C08G8/00; C08G8/28; C09J115/00; C09J115/02; C09J121/00; C08L; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
42 words
A POLYMER CHARACTERIZED BY FROM 2 TO ABOUT 16 RECURRING BENZENE NUCLEI LINKED BY A METHYLENE BRIDGE, SAID BENZENE NUCLEI SO LINKED IN SAID POLYMER HAVING THEREON A FIRST SUBSTITUENT SELECTED FROM THE GROUP CON SISTING OF =O, -OH, -NO, =NOH AND
Claim 2
Dependent Claim
42 words
A POLYMER CHARACTERIZED BY FROM 2 TO ABOUT 16 RECURRING BENZENE NUCLEI LINKED BY A METHYLENE BRIDGE, SAID BENZENE NUCLEI SO LINKED IN SAID POLYMER HAVING THEREON A FIRST SUBSTITUENT SELECTED FROM THE GROUP CON SISTING OF =O, -OH, -NO, =NOH AND
Claim 3
Dependent Claim
129 words
A NOVEL METHOD WHICH COMPRISES THE STEPS OF MIXING A NOVOALAK RESIN, CHARACTERIZED BY FROM 2 TO ABOUT 16 RECURRING BENZENE NICLEI LINKED BY A METHYLENE BRIDGE, WITH AT LEAST ONE-FIFTH MOLE OF A NITRITE PER MOLE OF BENZENE NUCLEI IN THE NOVOLAK RESIN TO FORM A NITROSOPHENOL-CONTAINING POLYMER AND MIXING SAIDNITROSOPHENOL-CONTAINING POLYMER WITH AT LEAST APPROXIMATELY A MOLAR EQUIVALENT OF HYDROXYLAMINE PER MOLE OF NITROSOPHENOL UNIT IN THE POLYMER TO PROVIDE A QUINONEDIOXIMECONTAINING POLYMER; MIXING, IN A SUBSTANTIALLY OXYGENFREE ATMOSPHERE, SAID QUINONEDIOXIME-CONTAINING POLYMER WITH AT LEAST ABOUT TO EQUIVALENTS OF A BASE PER MOLE OF DOXIME UNIT AND WITH AT LEAST ABOUT TWO MOLES OF NITRIC OXIDE PER MOLE OF DIOXIME UNIT; AND FINALLY MIXING THE RESULTING POLYMER WITH ACID UNTIL EVOLUTION OF OXIDES OF NITROGEN SUBSTANTIALLY CEASES.
Claim 4
Dependent Claim
129 words
A NOVEL METHOD WHICH COMPRISES THE STEPS OF MIXING A NOVOALAK RESIN, CHARACTERIZED BY FROM 2 TO ABOUT 16 RECURRING BENZENE NICLEI LINKED BY A METHYLENE BRIDGE, WITH AT LEAST ONE-FIFTH MOLE OF A NITRITE PER MOLE OF BENZENE NUCLEI IN THE NOVOLAK RESIN TO FORM A NITROSOPHENOL-CONTAINING POLYMER AND MIXING SAIDNITROSOPHENOL-CONTAINING POLYMER WITH AT LEAST APPROXIMATELY A MOLAR EQUIVALENT OF HYDROXYLAMINE PER MOLE OF NITROSOPHENOL UNIT IN THE POLYMER TO PROVIDE A QUINONEDIOXIMECONTAINING POLYMER; MIXING, IN A SUBSTANTIALLY OXYGENFREE ATMOSPHERE, SAID QUINONEDIOXIME-CONTAINING POLYMER WITH AT LEAST ABOUT TO EQUIVALENTS OF A BASE PER MOLE OF DOXIME UNIT AND WITH AT LEAST ABOUT TWO MOLES OF NITRIC OXIDE PER MOLE OF DIOXIME UNIT; AND FINALLY MIXING THE RESULTING POLYMER WITH ACID UNTIL EVOLUTION OF OXIDES OF NITROGEN SUBSTANTIALLY CEASES.
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |