Patent US3083410A successfully refreshed from Google Patents.
US3083410A
Expired / Lapsed
US
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Cold rolling film of high density ethylene polymer
Assignee: Phillips Petroleum Co
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Filing: 1956-11-23
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Granted: 1963-04-02
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Expires: 1976-11-23
Abstract
No abstract record available.
Inventors
- 👤 Roger M Mcglamery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:15
CPC Classifications
B; B29; B29C; B29C55/00; B29C55/02; B29C55/18; B29K; B29K2023/00; B29K2023/04; B29K2023/06; Y; Y10; Y10S; Y10S264/00; Y10S264/68; Y10S264/73
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN A COLD ROLLING PROCESS WHEREIN A SHEET OF THERMOPLASTIC POLYMER MAKES A SINGLE PASS BETWEEN ROLLS AT A TEMPERATURE BELOW THE SOFTENING TEMPERATURE OF SAID POLYMER TO EFFECT A REDUCTION IN THICKNESS OF SAID SHEET ABOVE 60 PERCENT THE IMPROVEMENT WHICH COMPIRSES EMPLOYING AS SAID POLYMER AN ETHYLENE POLYMER CHARACTERIZED BY A DENSITY OF AT LEAST 0.96, A SOFTENING TEMPERATURE OF AT LEAST 240*F. AND A CRYSTALLINITY AT 25*C. OF AT LEAST 80 PERCENT SAID EHTYLENE POLYMER BEING A POLYMERIZATE OF A MONOMER SYSTEM CONTAINING 85 TO 100 WEIGHT PERCENT ETHYLENE, 0 TO 15 WEIGHT PERCENT MONOOLEFIN SELECTED FROM THE GROUP CONSISTING OF PROPYLENE, 1-BUTENE AND 2-BUTENE, AND 0 TO 3 WEIGHT PERCENT ACYCLIC MONOOLEFIN HAVING 5 TO 12 CARBON ATOMS PER MOLECULE.
Claim 2
Dependent Claim
124 words
IN A COLD ROLLING PROCESS WHEREIN A SHEET OF THERMOPLASTIC POLYMER MAKES A SINGLE PASS BETWEEN ROLLS AT A TEMPERATURE BELOW THE SOFTENING TEMPERATURE OF SAID POLYMER TO EFFECT A REDUCTION IN THICKNESS OF SAID SHEET ABOVE 60 PERCENT THE IMPROVEMENT WHICH COMPIRSES EMPLOYING AS SAID POLYMER AN ETHYLENE POLYMER CHARACTERIZED BY A DENSITY OF AT LEAST 0.96, A SOFTENING TEMPERATURE OF AT LEAST 240*F. AND A CRYSTALLINITY AT 25*C. OF AT LEAST 80 PERCENT SAID EHTYLENE POLYMER BEING A POLYMERIZATE OF A MONOMER SYSTEM CONTAINING 85 TO 100 WEIGHT PERCENT ETHYLENE, 0 TO 15 WEIGHT PERCENT MONOOLEFIN SELECTED FROM THE GROUP CONSISTING OF PROPYLENE, 1-BUTENE AND 2-BUTENE, AND 0 TO 3 WEIGHT PERCENT ACYCLIC MONOOLEFIN HAVING 5 TO 12 CARBON ATOMS PER MOLECULE.
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) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |