US3369003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers of tertiary-alkoxyalkyl esters
Assignee: Sinclair Research Inc
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Filing: 1963-09-20
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Granted: 1968-02-13
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Expires: 1983-09-20
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Verdol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:42
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/66; C08G63/668; C08F; C08F22/00; C08F22/10; C08F22/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
AN ADDITION POLYMER HAVING AN AVERAGE MOLECULAR WEIGHT OF AT LEAST ABOUT 500 FORMED BY POLYMERIZATION AT THE DOUBLE BOND OF A MONOMER CONTAINING 1 TO 100% OF A DIESTER OF A MONOOLEFINICALLY UNSATURATED DICARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF MALEIC ACID, ITACONIC ACID AND FUMARIC ACID AND AN ALCOHOL IN WHICH ONE ALCOHOL GROUP IS TERTIARY-ALKOXYALKYL OOF THE FORMULA -(R1O)X-R2, WHERE R1 IS A DIVALENT ALIPHATIC HYDROCARBON RADICAL OF 2 TO 12 CARBON ATOMS, R2 IS A TERIARY ALKYL RADICAL OF 4 TO 10 CARBON ATOMS, AND X IS A NUMBER FROM 1 TO 25, AND THE OTHER ALCOHOL GROUP IS SELECTED FROM THE GROUP CONSISTING OF TERTIARYALKOXYALKYL OF THE FORMLA -(R1O)X-R2 AND LOWER ALKYL, THE ESSENTIAL BALANCED OF THE POLYMER BEING A COPOLYMERIZABLE OLEFINIC COMPOUND OF 2 TO 12 CARBON ATOMS.
Claim 2
Dependent Claim
135 words
AN ADDITION POLYMER HAVING AN AVERAGE MOLECULAR WEIGHT OF AT LEAST ABOUT 500 FORMED BY POLYMERIZATION AT THE DOUBLE BOND OF A MONOMER CONTAINING 1 TO 100% OF A DIESTER OF A MONOOLEFINICALLY UNSATURATED DICARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF MALEIC ACID, ITACONIC ACID AND FUMARIC ACID AND AN ALCOHOL IN WHICH ONE ALCOHOL GROUP IS TERTIARY-ALKOXYALKYL OOF THE FORMULA -(R1O)X-R2, WHERE R1 IS A DIVALENT ALIPHATIC HYDROCARBON RADICAL OF 2 TO 12 CARBON ATOMS, R2 IS A TERIARY ALKYL RADICAL OF 4 TO 10 CARBON ATOMS, AND X IS A NUMBER FROM 1 TO 25, AND THE OTHER ALCOHOL GROUP IS SELECTED FROM THE GROUP CONSISTING OF TERTIARYALKOXYALKYL OF THE FORMLA -(R1O)X-R2 AND LOWER ALKYL, THE ESSENTIAL BALANCED OF THE POLYMER BEING A COPOLYMERIZABLE OLEFINIC COMPOUND OF 2 TO 12 CARBON ATOMS.
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) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |