Patent US872473A successfully refreshed from Google Patents.
US3333015A
Expired / Lapsed
US
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Dienic monomer polymerization using alcohol-peroxide catalyst system
Assignee: BURKE
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Filing: 1963-11-19
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Granted: 1967-07-25
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Expires: 1983-11-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Oliver W Burke
- 👤 Lauderdale Fort
- 👤 Eldon E Stahly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:20
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/28; C08F4/32; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/38; C07C2/40; C07C2/403; C07C2/406; C08F36/00; C08F36/02; C08F36/04; C07C2531/00; C07C2531/02; Y; Y10; Y10S; Y10S260/00; Y10S260/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A PROCESS FOR FORMING AN UNSATURATED LIQUID POLYMER WHICH COMPRISES (A) FORMING A HOMOGENOUS REACTION MIXTURE CONSISTING ESSENTIALLY OF, BY WEIGHT, (1) 100 PARTS POLYMERIZABLE ETHYLENICALLY UNSATURATED MONOMER MATERIAL, (2) 10 TO 200 PARTS ALCOHOL AND (3) 0.5 TO 10 PARTS ORGANIC PEROXY POLYMERIZATION CATALYST CONTAINING NOT MORE THAN 30 CARBON ATOMS AND HAVING A FORMULA SELECTED FROM THE GROUP CONSISTING OF R''OOR'' AND R''OOH WHEREIN R'' IS A HYDROCARBON RADICAL. (B) HEATING SAID MIXTURE (1) AT A TEMPERATURE IN THE RANGE OF FROM ABOVE 100 TO 200*C. (2) FOR FROM 10 MINUTES TO 10 HOURS, (3) TO A CONVERSION OF THE MONOMER MATERIAL TO POLYMER OF AT LEAST 35% AND (C) RECOVERING THE FORMED LIQUID POLYMER; (D) SAID ETHYLENICALLY UNSATURATED MONOMER MATERIAL COMPRISING BY WEIGHT AT LEAST 10% CONJUGATED DIENE MONOMER CONTAINING FROM 4 TO 8 CARBON ATOMS, AND (E) SAID ALCOHOL CONTAINING FROM 1 TO 6 CARBON ATOMS.
Claim 2
Dependent Claim
150 words
A PROCESS FOR FORMING AN UNSATURATED LIQUID POLYMER WHICH COMPRISES (A) FORMING A HOMOGENOUS REACTION MIXTURE CONSISTING ESSENTIALLY OF, BY WEIGHT, (1) 100 PARTS POLYMERIZABLE ETHYLENICALLY UNSATURATED MONOMER MATERIAL, (2) 10 TO 200 PARTS ALCOHOL AND (3) 0.5 TO 10 PARTS ORGANIC PEROXY POLYMERIZATION CATALYST CONTAINING NOT MORE THAN 30 CARBON ATOMS AND HAVING A FORMULA SELECTED FROM THE GROUP CONSISTING OF R''OOR'' AND R''OOH WHEREIN R'' IS A HYDROCARBON RADICAL. (B) HEATING SAID MIXTURE (1) AT A TEMPERATURE IN THE RANGE OF FROM ABOVE 100 TO 200*C. (2) FOR FROM 10 MINUTES TO 10 HOURS, (3) TO A CONVERSION OF THE MONOMER MATERIAL TO POLYMER OF AT LEAST 35% AND (C) RECOVERING THE FORMED LIQUID POLYMER; (D) SAID ETHYLENICALLY UNSATURATED MONOMER MATERIAL COMPRISING BY WEIGHT AT LEAST 10% CONJUGATED DIENE MONOMER CONTAINING FROM 4 TO 8 CARBON ATOMS, AND (E) SAID ALCOHOL CONTAINING FROM 1 TO 6 CARBON ATOMS.
References Cited (Backward Citations)
US2551641A
Cited
US2118864A
Cited
US2377752A
Cited
US2586594A
Cited
US2795618A
Cited
US2818437A
Cited
US3230235A
Cited
US2937129A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |