US2626945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interpolymerization of polyolefinic esters of 2-alkenyl alcohols with certain monoolefinic hydrocarbons
Assignee: Uniroyal Inc
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Filing: 1949-07-11
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Granted: 1953-01-27
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Expires: 1969-07-11
Abstract
No abstract record available.
Inventors
- 👤 Frank J Carlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:46
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/20
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
167 words
IN A METHOD OF POLYMERIZING (A) A POLYOLEFINIC ESTER SELECTED FROM THE GROUP CONSISTING OF POLY-UNSATURATED ESTERS, SAID UNSATURATION BEING ETHYLENIC UNSATURATION, OF ALCOHOLS OF THE FORMULA R*CH=CR*-CH2-X IN WHICH ONE R* IS HYDROGEN AND THE OTHER R* IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF HYDROGEN. CHLORINE, METHYL, ETHYL AND PHENYL AND X IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF HYDROXY AND HYDROXYALKOXY RADICALS OF THE FORMULA -O-CHR$-CHR$-OH WHEREIN R$ IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKYL, TO FORM A SOLUBLE, UNSATURATED POLYMER BY HEATING AT 25 TO 150* C. IN THE PRESENCE OF A FREE RADICAL TYPE POLYMERIZATION INITIATOR, THE STEP OF CARRYING OUT THE SAID POLYMERIZATION IN THE PRESENCE OF AT LEAST 0.2 MOLE OF (B) A LIQUID COPOLYMERIZABLE MONOOLEFINIC HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF CYCLOHEXENE AND ACYCLIC ALKENES HAVING FROM 5 TO 10 CARBON ATOMS, PER MOLE OF SAID ESTER, WHEREBY THE CONVERSION OF SAID ESTER TO SOLUBLE, UNSATURATED POLYMER IS SUBSTANTIALLY INCREASED.
Claim 2
Dependent Claim
167 words
IN A METHOD OF POLYMERIZING (A) A POLYOLEFINIC ESTER SELECTED FROM THE GROUP CONSISTING OF POLY-UNSATURATED ESTERS, SAID UNSATURATION BEING ETHYLENIC UNSATURATION, OF ALCOHOLS OF THE FORMULA R*CH=CR*-CH2-X IN WHICH ONE R* IS HYDROGEN AND THE OTHER R* IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF HYDROGEN. CHLORINE, METHYL, ETHYL AND PHENYL AND X IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF HYDROXY AND HYDROXYALKOXY RADICALS OF THE FORMULA -O-CHR$-CHR$-OH WHEREIN R$ IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKYL, TO FORM A SOLUBLE, UNSATURATED POLYMER BY HEATING AT 25 TO 150* C. IN THE PRESENCE OF A FREE RADICAL TYPE POLYMERIZATION INITIATOR, THE STEP OF CARRYING OUT THE SAID POLYMERIZATION IN THE PRESENCE OF AT LEAST 0.2 MOLE OF (B) A LIQUID COPOLYMERIZABLE MONOOLEFINIC HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF CYCLOHEXENE AND ACYCLIC ALKENES HAVING FROM 5 TO 10 CARBON ATOMS, PER MOLE OF SAID ESTER, WHEREBY THE CONVERSION OF SAID ESTER TO SOLUBLE, UNSATURATED POLYMER IS SUBSTANTIALLY INCREASED.
Claim 3
Dependent Claim
54 words
A SOLUBLE UNSATURATED INTERPOLYMER OF (A) DIALLYL FUMARATE, (B) DIISOBUTYLENE, AND (C) STYRENE, SAID INTERPOLYMER BEING FORMED Y HEATING THE SAID MATERIALS IN PROPORTION OF FROM 0.2 TO 8 MOLES OF (B) AND FROM 0.1 TO 8 MOLES OF (C) PER MOLE OF (A) IN THE PRESENCE OF A FREE RADICAL TYPE POLYMERIZATION INITIATOR.
Claim 4
Dependent Claim
54 words
A SOLUBLE UNSATURATED INTERPOLYMER OF (A) DIALLYL FUMARATE, (B) DIISOBUTYLENE, AND (C) STYRENE, SAID INTERPOLYMER BEING FORMED Y HEATING THE SAID MATERIALS IN PROPORTION OF FROM 0.2 TO 8 MOLES OF (B) AND FROM 0.1 TO 8 MOLES OF (C) PER MOLE OF (A) IN THE PRESENCE OF A FREE RADICAL TYPE POLYMERIZATION INITIATOR.
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) | 1956-01-27 | 1956-07-28 | 1957-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-27 | 1960-07-28 | 1961-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-27 | 1964-07-28 | 1965-01-27 | $7700.00 | Window Closed / Lapsed |