US2493843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasticizing elastomers
Assignee: EIDP Inc
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Filing: 1946-10-05
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Granted: 1950-01-10
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Expires: 1966-10-05
Abstract
No abstract record available.
Inventors
- 👤 Vincent John Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:16
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/20; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
THE PROCESS OF INCREASING THE PLASTICITY OF AN ELASTOPRENE OF THE CLASS CONSISTING OF NATURAL RUBBER AND THE POLYMERS OF 1,3-BUTADIENE AND OF 2-CHLORO-1,3-BUTADIENE WHICH CONTAIN AT LEAST 50% OF THE 1,3-BUTADIENE COMPOUND, WHICH COMPRISES INTIMATELY INCORPORATING IN SUCH MATERIAL IN THE UNVULCANIZED FORM FROM 0.1% TO 5.0% OF AN ANILIDE OF A BETA-KETO ACID OF THE FORMULA R-CO-CH2-CO-NHR'', WHEREIN R STANDS FOR A RADICAL OF THE GROUP CONSISTING OF PHENYL AND NAPHTHYL RADICALS AND ALKYL RADICALS OF FROM 1 TO 6 CARBON ATOMS, AND R'' STANDS FOR A RADICAL OF THE GROUP CONSISTING OF PHENYL AND NAPHTHYL RADICALS.
Claim 2
Dependent Claim
99 words
THE PROCESS OF INCREASING THE PLASTICITY OF AN ELASTOPRENE OF THE CLASS CONSISTING OF NATURAL RUBBER AND THE POLYMERS OF 1,3-BUTADIENE AND OF 2-CHLORO-1,3-BUTADIENE WHICH CONTAIN AT LEAST 50% OF THE 1,3-BUTADIENE COMPOUND, WHICH COMPRISES INTIMATELY INCORPORATING IN SUCH MATERIAL IN THE UNVULCANIZED FORM FROM 0.1% TO 5.0% OF AN ANILIDE OF A BETA-KETO ACID OF THE FORMULA R-CO-CH2-CO-NHR'', WHEREIN R STANDS FOR A RADICAL OF THE GROUP CONSISTING OF PHENYL AND NAPHTHYL RADICALS AND ALKYL RADICALS OF FROM 1 TO 6 CARBON ATOMS, AND R'' STANDS FOR A RADICAL OF THE GROUP CONSISTING OF PHENYL AND NAPHTHYL RADICALS.
References Cited (Backward Citations)
US2415356A
Cited
US2381526A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |