Patent US3346535A successfully refreshed from Google Patents.
US3346535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon graft polymers
Assignee: Union Oil Company of California
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Filing: 1964-03-09
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Granted: 1967-10-10
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Expires: 1984-03-09
Abstract
No abstract record available.
Inventors
- 👤 Henri G G Dekking
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:18
CPC Classifications
C; C08; C08F; C08F292/00; C08F4/00; C08F4/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
38 words
A COMPOSITION COMPRISING CARBON IONICALLY BONDED TO A POLYMER THROUGH A BASIC NITROGEN CATIONIC RADICAL TERMINALLY POSITIONED ON SAID LINEAR POLYMER, SAID POLYMER BEING DERIVED BY THE POLYMERIZATION OF AT LEAST AN ETHYLENICALLY UNSATURATED MONOMER THROUGH ALIPHATIC UNSATURATION.
Claim 2
Dependent Claim
38 words
A COMPOSITION COMPRISING CARBON IONICALLY BONDED TO A POLYMER THROUGH A BASIC NITROGEN CATIONIC RADICAL TERMINALLY POSITIONED ON SAID LINEAR POLYMER, SAID POLYMER BEING DERIVED BY THE POLYMERIZATION OF AT LEAST AN ETHYLENICALLY UNSATURATED MONOMER THROUGH ALIPHATIC UNSATURATION.
Claim 3
Independent Claim
130 words
THE METHOD FOR PROPAGATING A POLYMER FRM THE SURFACE OF CARBON THAT COMPRISES REACTING A CATIONIC ORGANIC AZO COMPOUND WITH CARBON HAVING A BASE EXCHANGE CAPACITY OF AT LEAST ONE MILLEQUIVALENT PER 100 GRAMS UNDER BASE EXCHANGE CONDITIONS SO AS TO FORM AN IONIC BOND BETWEEN CARBOXYLIC ACID RADICALS THAT OCCUR ON SAID CARBON SURFACE AND THE BASIC NITROGEN CATIONIC RADICAL OF SAID CATIONIC ORGANC AZO COMPOUND, THEREBY FORMING A CARBON-AZO COMPLEX, MIXING SAID CARBON-AZO COMPLEX WITH AN ETHYLENICALLY UNSATURATED MONOMER THAT UNDERGOES FREE RADICAL POLYMERIZATION THROUGH ALIPHATIC UNSATURATION AND HEATING THE MIXTURE TO DECOMPOSE THE AZO RADICAL OF SAID COMPLEX BY HOMOLYTIC FISSION AND THEREBY OBTAIN FREE RADICALS WHICH ARE IONICALLY BONDED TO SAID CARBON AND WHICH INITIATE POLYMERIZATION OF SAID MONOMER TO PROPAGATE SAID POLYMER FROM SAID CARBON.
Claim 4
Independent Claim
130 words
THE METHOD FOR PROPAGATING A POLYMER FRM THE SURFACE OF CARBON THAT COMPRISES REACTING A CATIONIC ORGANIC AZO COMPOUND WITH CARBON HAVING A BASE EXCHANGE CAPACITY OF AT LEAST ONE MILLEQUIVALENT PER 100 GRAMS UNDER BASE EXCHANGE CONDITIONS SO AS TO FORM AN IONIC BOND BETWEEN CARBOXYLIC ACID RADICALS THAT OCCUR ON SAID CARBON SURFACE AND THE BASIC NITROGEN CATIONIC RADICAL OF SAID CATIONIC ORGANC AZO COMPOUND, THEREBY FORMING A CARBON-AZO COMPLEX, MIXING SAID CARBON-AZO COMPLEX WITH AN ETHYLENICALLY UNSATURATED MONOMER THAT UNDERGOES FREE RADICAL POLYMERIZATION THROUGH ALIPHATIC UNSATURATION AND HEATING THE MIXTURE TO DECOMPOSE THE AZO RADICAL OF SAID COMPLEX BY HOMOLYTIC FISSION AND THEREBY OBTAIN FREE RADICALS WHICH ARE IONICALLY BONDED TO SAID CARBON AND WHICH INITIATE POLYMERIZATION OF SAID MONOMER TO PROPAGATE SAID POLYMER FROM SAID CARBON.
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) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |