US3225121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic copolymer of vinyl monomer and aldehyde monomer
Assignee: EIDP Inc
•
Filing: 1962-05-16
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Granted: 1965-12-21
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Expires: 1982-05-16
Abstract
No abstract record available.
Inventors
- 👤 Jr William P Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:17
CPC Classifications
C; C08; C08G; C08G2/00; C08G2/18; C08G2/26; C08F; C08F2/00; C08F2/04; C08F2/06; C08F236/00; C08F236/02; C08F236/04; C08G2/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A NORMALLY SOLID THERMOPLASTIC COPOLYMER HAVING AT LEAST ONE CONSTITUENT INCORPORATED SINGLY AS A NON-RECURRING CENTRAL DISCRETE SEGMENT, SAID CONSTITUENT BEING A POLYMERIZED VINYL MONOMER, SAID CENTRAL SEGMENT BEING COMPOSED OF AT LEAST 10 UNITS OF SAID VINYL MONOMER AND HAVING ATTACHED AT EACH END AT LEAST ONE ADDITIONAL POLYMER SEGMENT OF AN ALDEHYDE MONOMER OF THE FORMULA R-CH=O WHERE R IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, ARYL AND ALKYL HAVING NO HYDROGEN ATOMS ATTACHED TO THE CARBON ATOM CONNECTED TO THE CARBONYL CARBON, SAID VINYL MONOMER BEING DEVOID OF GROUPS CONTAINING AN ACTIVE HYDROGEN ATOM AS DETERMINED BY THE ZEREWITINOFF TEST, AND SAID ALDEHYDE MONOMER CONSTITUTING 0.5-98% OF THE SUM OF THE MOLES OF SAID COPOLYMER.
Claim 2
Dependent Claim
119 words
A NORMALLY SOLID THERMOPLASTIC COPOLYMER HAVING AT LEAST ONE CONSTITUENT INCORPORATED SINGLY AS A NON-RECURRING CENTRAL DISCRETE SEGMENT, SAID CONSTITUENT BEING A POLYMERIZED VINYL MONOMER, SAID CENTRAL SEGMENT BEING COMPOSED OF AT LEAST 10 UNITS OF SAID VINYL MONOMER AND HAVING ATTACHED AT EACH END AT LEAST ONE ADDITIONAL POLYMER SEGMENT OF AN ALDEHYDE MONOMER OF THE FORMULA R-CH=O WHERE R IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, ARYL AND ALKYL HAVING NO HYDROGEN ATOMS ATTACHED TO THE CARBON ATOM CONNECTED TO THE CARBONYL CARBON, SAID VINYL MONOMER BEING DEVOID OF GROUPS CONTAINING AN ACTIVE HYDROGEN ATOM AS DETERMINED BY THE ZEREWITINOFF TEST, AND SAID ALDEHYDE MONOMER CONSTITUTING 0.5-98% OF THE SUM OF THE MOLES OF SAID COPOLYMER.
References Cited (Backward Citations)
US2816086A
Cited
US3050511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |