US3030344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric product
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1958-01-29
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Granted: 1962-04-17
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Expires: 1978-01-29
Abstract
No abstract record available.
Inventors
- 👤 Perry A Argabright
- 👤 Kuntz Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:18
CPC Classifications
C; C08; C08C; C08C19/00; C08C19/20; C08K; C08K5/00; C08K5/36; C08K5/37; C08K5/372; Y; Y10; Y10S; Y10S8/00; Y10S8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
AN ELASTIC COPOLYMER COMPRISING A LIQUID COPOLYMER OF 75 PARTS BY WEIGHT OF BUTADIENE AND 25 PARTS BY WEIGHT OF STRYRENE HAVING A VISCOSITY OF 1 TO 1000 POISES AT 100*F. WHICH HAS BEEN REACTED THROUGH FREE RADICALS INITIATION WITH 1 TO 10 MOLE PERCENT OF 1,3-PROPANEDITHIOL AT A TEMPERATURE OF 0 TO 500*F., SAID ELASTIC COPOLYMER HAVING A TENSILE STRENGTH IN THE RANGE OF 10 TO 500 P.S.I., AND A PERCENT ELONGATION IN THE RANGE OF 10 TO 400.
Claim 2
Dependent Claim
63 words
A PROCESS COMPRISING FORMING A HOMOGENEOUS MIXTURE OF A LIQUID POLYMER OF A CONJUGATED DIOLEFIN HAVING 4 TO 10 CARBON ATOMS PER MOLECULE AND A VOSCOSITY OF 1 TO 1000 POISES AT 100*F. WITH 1 TO 10 MOLE PERCENT OF 1,3PROPANEDITHIOL AT A TEMPERATURE OF 0.TO 500*F. BY MEANS OF FREE RADICAL INITIATION UNTIL SAID MIXTURE IS CONVERTED TO A SOLID ELASTIC POLYMER.
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) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |