US3243395A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Poyethylene modified with polypropylene wax
Assignee: Eastman Kodak Co
•
Filing: 1960-12-28
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Granted: 1966-03-29
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Expires: 1980-12-28
Abstract
No abstract record available.
Inventors
- 👤 James E Guillet
- 👤 Jr Harry W Coover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:12
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L2205/00; C08L2205/02; C08L91/00; C08L91/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A POLYMERIC COMPOSITION EXHIBITING IMPROVED PHYSICAL PROPERTIES COMPRISING NORMALLY SOLID PHYSICAL PROPERTIES COMPRISING NORMALLY SOLID POLYETHYLENE, HAVING A DENSITY OF AT LEAST .90 AND A MOLECULAR WEIGHT OF AT LEAST 10,000 AND ABOUT 1 TO ABOUT 30% BY WEIGHT, BASED ON THE COMPOSITION, OF SUBSTANTIALLY CRYSTALLINE POLYPROPYLENE WAX HAVING AN AVERAGE MOLECULAR WEIGHT IN THE RANGE OF ABOUT 1,000 TO ABOUT 8,000, A DENSITY OF AT LEAST .90, AN ASTM D36-26 BALL AND RING SOFTENING POINT OF AT LEAST 130*C., AN ASTM D5-52 PENETRATION HARDNESS VALUE OF 0 AT 100 G. LOAD FOR 5 SECONDS AND BELOW 2 FOR 250 G. LOAD FOR 5 SECONDS, AND AN ACID NUMBER OF 0.
Claim 2
Dependent Claim
111 words
A POLYMERIC COMPOSITION EXHIBITING IMPROVED PHYSICAL PROPERTIES COMPRISING NORMALLY SOLID PHYSICAL PROPERTIES COMPRISING NORMALLY SOLID POLYETHYLENE, HAVING A DENSITY OF AT LEAST .90 AND A MOLECULAR WEIGHT OF AT LEAST 10,000 AND ABOUT 1 TO ABOUT 30% BY WEIGHT, BASED ON THE COMPOSITION, OF SUBSTANTIALLY CRYSTALLINE POLYPROPYLENE WAX HAVING AN AVERAGE MOLECULAR WEIGHT IN THE RANGE OF ABOUT 1,000 TO ABOUT 8,000, A DENSITY OF AT LEAST .90, AN ASTM D36-26 BALL AND RING SOFTENING POINT OF AT LEAST 130*C., AN ASTM D5-52 PENETRATION HARDNESS VALUE OF 0 AT 100 G. LOAD FOR 5 SECONDS AND BELOW 2 FOR 250 G. LOAD FOR 5 SECONDS, AND AN ACID NUMBER OF 0.
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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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |