US3081276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil-containing polymeric compositions and process for preparing same
Assignee: Shell USA Inc
•
Filing: 1960-02-08
•
Granted: 1963-03-12
•
Expires: 1980-02-08
Abstract
No abstract record available.
Inventors
- 👤 John L Snyder
- 👤 Kendall W Barbee
- 👤 Legge Norman Reginald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:39
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/12; C08J3/124; C08F; C08F6/00; C08F6/06; C08F6/12; C08K; C08K5/00; C08K5/01; C08J2321/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
86 words
THE PROCESS FOR PRODUCING A SOLID SUBSTANTIALLY TACKFREE CRUMB OF A SYNTHETIC ELASTOMER OF THE GROUP CONSISTING OF POLYISOPRENE, POLYBUTADIENE AND COPOLYMERS OF ETHYLENE AND PROPLENE FROM SOLUTIONS THEREOF IN AN INERT HYDROCARBON SOLVENT CONSISTING ESSENTIALLY OF MIXING THE HYDROCARBON SOLUTION OF THE ELASTOMER WITH 1-30 P.H.R. HYDROCARBON EXTENDER OIL FOR THE ELASTOMER AS THE SOLE ANTI-TACK AGENT UNTIL A HOMOGENEOUS SOLUTION THEREOF IS OBTAINED AND THEREAFTER COAGULATING THE ELASTOMER BY MIXING THE SOLUTION WITH WATER AT A TEMPERATURE ABOVE THE BOILING POINT OF THE SOLVENT.
Claim 2
Dependent Claim
86 words
THE PROCESS FOR PRODUCING A SOLID SUBSTANTIALLY TACKFREE CRUMB OF A SYNTHETIC ELASTOMER OF THE GROUP CONSISTING OF POLYISOPRENE, POLYBUTADIENE AND COPOLYMERS OF ETHYLENE AND PROPLENE FROM SOLUTIONS THEREOF IN AN INERT HYDROCARBON SOLVENT CONSISTING ESSENTIALLY OF MIXING THE HYDROCARBON SOLUTION OF THE ELASTOMER WITH 1-30 P.H.R. HYDROCARBON EXTENDER OIL FOR THE ELASTOMER AS THE SOLE ANTI-TACK AGENT UNTIL A HOMOGENEOUS SOLUTION THEREOF IS OBTAINED AND THEREAFTER COAGULATING THE ELASTOMER BY MIXING THE SOLUTION WITH WATER AT A TEMPERATURE ABOVE THE BOILING POINT OF THE SOLVENT.
Claim 3
Dependent Claim
66 words
A COMPOSITION CONSISTING ESSENTIALLY OF A HOMOGENEOUS SOLUTION OF A SYNTHETIC ELASTOMER OF THE GROUP CONSISTING OF POLYISOPRENE, POLYBUTADIENE AND COPOLYMERS OF ETHYLENE AND PROPLENE AND 1-30 PHR. HYDROCARBON EXTENDER OILS AS THE SOLE ANTI-TACK AGENT FOR THE ELASTOMER DISSOLVED IN A HYDROCARBON SOLVENT, THE SOLUTION BEING ESSENTIALLY ANHYDROUS, SAID ELASTOMER BEING SOLUBLE IN NORMALLY LIQUID HYDROCARBON SOLVENTS IN ALL PROPORTIONS AT NORMAL TEMPERATURES AND PRESSURES.
Claim 4
Dependent Claim
66 words
A COMPOSITION CONSISTING ESSENTIALLY OF A HOMOGENEOUS SOLUTION OF A SYNTHETIC ELASTOMER OF THE GROUP CONSISTING OF POLYISOPRENE, POLYBUTADIENE AND COPOLYMERS OF ETHYLENE AND PROPLENE AND 1-30 PHR. HYDROCARBON EXTENDER OILS AS THE SOLE ANTI-TACK AGENT FOR THE ELASTOMER DISSOLVED IN A HYDROCARBON SOLVENT, THE SOLUTION BEING ESSENTIALLY ANHYDROUS, SAID ELASTOMER BEING SOLUBLE IN NORMALLY LIQUID HYDROCARBON SOLVENTS IN ALL PROPORTIONS AT NORMAL TEMPERATURES AND PRESSURES.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |