US2828296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emulsifiable polypropylene wax and manufacture thereof
Assignee: Eastman Kodak Co
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Filing: 1957-02-11
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Granted: 1958-03-25
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Expires: 1977-02-11
Abstract
No abstract record available.
Inventors
- 👤 James E Guillet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:08
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/06; C08F8/50; C08L; C08L23/00; C08L23/02; C08L23/10; C08L23/12; C08L23/14; C08L23/142; C08F2810/00; C08F2810/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
70 words
THE METHOD OF MAKING AN EMULSIFIABLE HIGH-MELTING SYNTHETIC WAX WHICH COMPRISES REACTING A NON-EMULSIFIABLE POLYPROPYLENE WAX HAVING AN AVERAGE MOLECULAR WEIGHT IN THE RANGE OF 1000-8000, A DENSITY OF AT LEAST 0.90, A BALL AND RING SOFTENING POINT OF AT LEAST 130*C. AND AN ACID NUMBER OF SUBSTANTIALLY ZERO, WITH OXYGEN AT A TEMPERATURE OF 100-200*C. UNTIL THE ACID NUMBER OF THE RESULTING PRODUCT IS IN THE RANGE OF 2-20.
Claim 2
Independent Claim
70 words
THE METHOD OF MAKING AN EMULSIFIABLE HIGH-MELTING SYNTHETIC WAX WHICH COMPRISES REACTING A NON-EMULSIFIABLE POLYPROPYLENE WAX HAVING AN AVERAGE MOLECULAR WEIGHT IN THE RANGE OF 1000-8000, A DENSITY OF AT LEAST 0.90, A BALL AND RING SOFTENING POINT OF AT LEAST 130*C. AND AN ACID NUMBER OF SUBSTANTIALLY ZERO, WITH OXYGEN AT A TEMPERATURE OF 100-200*C. UNTIL THE ACID NUMBER OF THE RESULTING PRODUCT IS IN THE RANGE OF 2-20.
Claim 3
Dependent Claim
93 words
AN EMULSIFIABLE OXIDIZED POLYPROPYLENE WAX HAVING AN AVERAGE MOLECULAR WEIGHT IN THE RANGE OF 1000-8000, A BALL AND RING SFTENING POINT ABOVE 130*C., AND AN ACID A BALL AND RING SOFTENING POINT ABOVE 130*C., AND AN ACID NUMBER IN THE RANGE OF 2-20, SAID WAX BEING THE PRODUCT OBTAINED BY REACTING A NON-EMLSIFIABLE POLYPROPYLENE A DENSITY OF AT LEAST 0.90, A BALL AND RING SOFTENING POINT ABOVE 130*C. AND AN ACID NUMBER OF SUBSTANTIALLY ZERO, WITH OXYGEN AT A TEMPERATURE OF 100-200*C. FOR A TIME SUFFICIENT TO DEVELOP AN ACID NUMBER OF 2-20.
Claim 4
Dependent Claim
93 words
AN EMULSIFIABLE OXIDIZED POLYPROPYLENE WAX HAVING AN AVERAGE MOLECULAR WEIGHT IN THE RANGE OF 1000-8000, A BALL AND RING SFTENING POINT ABOVE 130*C., AND AN ACID A BALL AND RING SOFTENING POINT ABOVE 130*C., AND AN ACID NUMBER IN THE RANGE OF 2-20, SAID WAX BEING THE PRODUCT OBTAINED BY REACTING A NON-EMLSIFIABLE POLYPROPYLENE A DENSITY OF AT LEAST 0.90, A BALL AND RING SOFTENING POINT ABOVE 130*C. AND AN ACID NUMBER OF SUBSTANTIALLY ZERO, WITH OXYGEN AT A TEMPERATURE OF 100-200*C. FOR A TIME SUFFICIENT TO DEVELOP AN ACID NUMBER OF 2-20.
References Cited (Backward Citations)
US2372001A
Cited
BE538782A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |