Patent US3247157A successfully refreshed from Google Patents.
US3247157A
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Stabilized cements of butene-1 polymers
Assignee: Petro Tex Chemical Corp
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Filing: 1963-03-29
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Granted: 1966-04-19
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Expires: 1983-03-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas G Reed
- 👤 Robert E Hinkson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:14
CPC Classifications
C; C09; C09J; C09J123/00; C09J123/02; C09J123/18; C09J123/20; C08; C08L; C08L2666/00; C08L2666/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A STABILIZED POLYBUTENE CEMENT COMPRISING A SOLUTION OF ISOTACTIC BUTENE-1 POLYMER HAVING A DENSITY ABOVE 0.88 IN AN ORGANIC HALIDE SOLVENT HAVING A BOILING POINT FROM ABOUT 80*C. TO ABOUT 250*C. AND A VAPOR PRESSURE OF BELOW 150 MM. OF MERCURY AT STANDARD CONDITIONS OF 0*C. AND 760 MM. OF MERCURY AND AN ALPHATIC HYDROCARBON FOR STABILIZING SAID SOLUTION AGAINST GELATION, HAVING 5 TO 7 CARBON ATOMS IN AN AMOUNT OF BETWEEN 3 PERCENT TO ABOUT 25 PERCENT BY WEIGHT OF THE TOTAL SOLUTION, SAID POLYMER BEING PRESENT IN AN AMOUNT LESS THAN 25 TO ONE PERCENT BY WEIGHT OF SAID SOLUTION AND SAID ORGANIC HALIDE SOLVENT BEING THE PREDOMINANT SOLVENT.
Claim 2
Dependent Claim
111 words
A STABILIZED POLYBUTENE CEMENT COMPRISING A SOLUTION OF ISOTACTIC BUTENE-1 POLYMER HAVING A DENSITY ABOVE 0.88 IN AN ORGANIC HALIDE SOLVENT HAVING A BOILING POINT FROM ABOUT 80*C. TO ABOUT 250*C. AND A VAPOR PRESSURE OF BELOW 150 MM. OF MERCURY AT STANDARD CONDITIONS OF 0*C. AND 760 MM. OF MERCURY AND AN ALPHATIC HYDROCARBON FOR STABILIZING SAID SOLUTION AGAINST GELATION, HAVING 5 TO 7 CARBON ATOMS IN AN AMOUNT OF BETWEEN 3 PERCENT TO ABOUT 25 PERCENT BY WEIGHT OF THE TOTAL SOLUTION, SAID POLYMER BEING PRESENT IN AN AMOUNT LESS THAN 25 TO ONE PERCENT BY WEIGHT OF SAID SOLUTION AND SAID ORGANIC HALIDE SOLVENT BEING THE PREDOMINANT SOLVENT.
References Cited (Backward Citations)
US2429861A
Cited
US2820778A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |