US3284385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unsaturated addition polymers convertible by oxygen to insoluble polymers
Assignee: Dal Mon Research Co
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Filing: 1962-07-02
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Granted: 1966-11-08
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Expires: 1982-07-02
Abstract
No abstract record available.
Inventors
- 👤 Alelio Gaetano F D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:31
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/26; C08F20/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
THE PROCESS OF PREPARING A LINEAR POLYMER COMPRISING THE STEP OF POLYMERIZING A MONOMER OF THE FORMULA CH2=C(-R'')-COO-Y-OOC-RD WHEREIN R'' IS A RADICAL SELECTED FROM THE CLASS CONSISTING OF HYDROGEN AND METHYL RADICALS; RD IS AN UNSATURATED ALIPHATIC RADICAL CONTAINING NO LESS THAN 15 OR NO MORE THAN 24 CARBON ATOMS AND CONSISTING OF A TERMINAL -CH3 GROUP, AT LEAST 1 AND NO MORE THAN 4 -CH=CH- GROUPS, AND THE REMAINDER CONSISTINF OF -CH2- GROUPS; AND Y IS A POLYVALENT HYDROCARBON RADICAL OF NO MORE THAN 20 CARBON ATOMS HAVING A VALENCY OF AT LEAST 2 AND NO MORE THAN 6, THE VALENCIES IN EXCESS OF THOSE SHOWN IN SAID ABOVE FORMULA BEING OCCUPIED BY GROUPS SELECTED FROM THE CLASS CONSISTING OF RDCOO-, HO--, RO-, AND RCOO- GROUPS IN WHICH R IS A HYDROCARBON RADICAL OF NO MORE THAN 24 CARBON ATOMS; SAID POLYMERIZATION BEING EFFECTED IN THE PRESENCE OF AN ANIONIC INITIATOR AND AT A TEMPERATURE IN THE RANGE OF AOUT -80*C.
Claim 2
Dependent Claim
163 words
THE PROCESS OF PREPARING A LINEAR POLYMER COMPRISING THE STEP OF POLYMERIZING A MONOMER OF THE FORMULA CH2=C(-R'')-COO-Y-OOC-RD WHEREIN R'' IS A RADICAL SELECTED FROM THE CLASS CONSISTING OF HYDROGEN AND METHYL RADICALS; RD IS AN UNSATURATED ALIPHATIC RADICAL CONTAINING NO LESS THAN 15 OR NO MORE THAN 24 CARBON ATOMS AND CONSISTING OF A TERMINAL -CH3 GROUP, AT LEAST 1 AND NO MORE THAN 4 -CH=CH- GROUPS, AND THE REMAINDER CONSISTINF OF -CH2- GROUPS; AND Y IS A POLYVALENT HYDROCARBON RADICAL OF NO MORE THAN 20 CARBON ATOMS HAVING A VALENCY OF AT LEAST 2 AND NO MORE THAN 6, THE VALENCIES IN EXCESS OF THOSE SHOWN IN SAID ABOVE FORMULA BEING OCCUPIED BY GROUPS SELECTED FROM THE CLASS CONSISTING OF RDCOO-, HO--, RO-, AND RCOO- GROUPS IN WHICH R IS A HYDROCARBON RADICAL OF NO MORE THAN 24 CARBON ATOMS; SAID POLYMERIZATION BEING EFFECTED IN THE PRESENCE OF AN ANIONIC INITIATOR AND AT A TEMPERATURE IN THE RANGE OF AOUT -80*C.
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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |