US2514928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerizing branch-chain hexadienes
Assignee: Shell Development Co
•
Filing: 1945-04-30
•
Granted: 1950-07-11
•
Expires: 1965-04-30
Abstract
No abstract record available.
Inventors
- 👤 Eugene T Bishop
- 👤 Robert D Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:00
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A PROCESS FOR THE PRODUCTION OF LIGHT COLORED, NON-TOXIC RUBBER-LIKE MATERIALS WHICH COMPRISES HEATING IN THE FORM OF AN AQUEOUS EMULSION A POLYMERIZABLE MONOMERIC CHARGE CONSISTING OF AT LEAST ONE BRANCH-CHAIN 1,3-HEXADIENE HAVING A METHYL GROUP DIRECTLY ATTACHED TO A PENULTIMATE CARBON ATOM OF A STRAIGHT CHAIN OF FIVE CARBON ATOMS AT A TEMPERATURE OF FROM 80*C. TO 120*C. IN THE PRESENCE OF FROM 0.1% TO 5.0% BY WEIGHT OF TERTIARY BUTYL HYDROPEROXIDE.
Claim 2
Dependent Claim
73 words
A PROCESS FOR THE PRODUCTION OF LIGHT COLORED, NON-TOXIC RUBBER-LIKE MATERIALS WHICH COMPRISES HEATING IN THE FORM OF AN AQUEOUS EMULSION A POLYMERIZABLE MONOMERIC CHARGE CONSISTING OF AT LEAST ONE BRANCH-CHAIN 1,3-HEXADIENE HAVING A METHYL GROUP DIRECTLY ATTACHED TO A PENULTIMATE CARBON ATOM OF A STRAIGHT CHAIN OF FIVE CARBON ATOMS AT A TEMPERATURE OF FROM 80*C. TO 120*C. IN THE PRESENCE OF FROM 0.1% TO 5.0% BY WEIGHT OF TERTIARY BUTYL HYDROPEROXIDE.
References Cited (Backward Citations)
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Cited
US2142980A
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US2367805A
Cited
US2340109A
Cited
US2391817A
Cited
US2394406A
Cited
US2409996A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-10 | 1954-01-09 | 1954-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-10 | 1958-01-09 | 1958-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-10 | 1962-01-09 | 1962-07-11 | $7700.00 | Window Closed / Lapsed |