US3260705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for polymerizing vinyl chloride and a fumarate ester
Assignee: Monsanto Co
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Filing: 1963-05-13
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Granted: 1966-07-12
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Expires: 1983-05-13
Abstract
No abstract record available.
Inventors
- 👤 Robert J Slocombe
- 👤 Robert Z Greenley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:30
CPC Classifications
C; C08; C08F; C08F222/00; C08F222/10; C08F214/00; C08F214/02; C08F214/04; C08F214/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
THE METHOD OF PREPARING INTERPOLYMERS OF VINYL CHLORIDE AND A DIESTER OF FUMARIC ACID IN WHICH ON ESTERIFYING GROUP IS AN HYDROXY (ORAL) HYDROCARBYL GROUP AND THE OTHER ESTERIFYING GROUP IS SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL AND HYDROXY(OXAL HYDROCARBYL GROUPS AND SOME FURMARATE WITH FREE CARBOXYL IS PRESENT IN SAID DIESTER, WHICH COMPRISES POLYMERIZING SUCH MONOMERS IN THE PRESENCE OF AN ORGANIC AMINE IN AMOUNT SUFFICIENT TO APPROXIMATELY NEUTRALIZE THE ACID CONTENT OF THE DIESTER BY CONTACTING SUCH MONOMERS WITH A FREE-RADICAL CATALYST.
Claim 2
Independent Claim
86 words
THE METHOD OF PREPARING INTERPOLYMERS OF VINYL CHLORIDE AND A DIESTER OF FUMARIC ACID IN WHICH ON ESTERIFYING GROUP IS AN HYDROXY (ORAL) HYDROCARBYL GROUP AND THE OTHER ESTERIFYING GROUP IS SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL AND HYDROXY(OXAL HYDROCARBYL GROUPS AND SOME FURMARATE WITH FREE CARBOXYL IS PRESENT IN SAID DIESTER, WHICH COMPRISES POLYMERIZING SUCH MONOMERS IN THE PRESENCE OF AN ORGANIC AMINE IN AMOUNT SUFFICIENT TO APPROXIMATELY NEUTRALIZE THE ACID CONTENT OF THE DIESTER BY CONTACTING SUCH MONOMERS WITH A FREE-RADICAL CATALYST.
References Cited (Backward Citations)
US3159610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |