Patent US3123583A successfully refreshed from Google Patents.
US3123583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Procedure for compositions of
Assignee: —
•
Filing: —
•
Granted: 1964-03-03
•
Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:42
CPC Classifications
C; C08; C08L; C08L21/00; C08F; C08F10/00; C08L23/00; C08L23/02; C08L23/16; C08L53/00; C08L53/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A METHOD OF PREPARING A VULCANIZED BLEND OF (1) POLYETHYLENE HAVING A DENSITY IN THE RANGE OF 0.94 TO 0.96 AND (2) A RUBBERY POLYMER SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF CONJUGATED DIENES CONTAINING 4 TO 8 CARBON ATOMS AND COPOLYMERS OF CONJUGATED DIENES CONTAINING 4 TO 8 CARBON ATOMS WITH A MONOMER SELECTED FROM THE GROUP CONSISTING OF STYRENE, ALPHA-METHYLSTYRENE, METHYL ACRYLATE, METHYL METHACRYLATE, ETHYL ACRYLATE, ETHYL METHACRYLATE AND 2-VINYLPYRIDINE COMPRISING BLENDING SAID POLYETHYLENE WITH SAID RUBBERY POLYMER AT A TEMPERATURE ABOVE THE SOFTENING POINT OF SAID POLYETHYLENE AND, SUBSEQUENTLY AND AS THE FINAL MILLING OPERATION, MILLING SAID BLEND AT A TEMPERATURE SUBSTANTIALLY BELOW THE SOFTENING POINT OF SAID POLYETHYLENE UNTIL A HOMOGENEOUS COMPOSITION RESULTS, COMPOUNDING INGREDIENTS BEING ADDED DURING AT LEAST ONE OF SAID BLENDING AND MILLING OPERATIONS AND VULCANIZING SAID BLEND.
Claim 2
Independent Claim
136 words
A METHOD OF PREPARING A VULCANIZED BLEND OF (1) POLYETHYLENE HAVING A DENSITY IN THE RANGE OF 0.94 TO 0.96 AND (2) A RUBBERY POLYMER SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF CONJUGATED DIENES CONTAINING 4 TO 8 CARBON ATOMS AND COPOLYMERS OF CONJUGATED DIENES CONTAINING 4 TO 8 CARBON ATOMS WITH A MONOMER SELECTED FROM THE GROUP CONSISTING OF STYRENE, ALPHA-METHYLSTYRENE, METHYL ACRYLATE, METHYL METHACRYLATE, ETHYL ACRYLATE, ETHYL METHACRYLATE AND 2-VINYLPYRIDINE COMPRISING BLENDING SAID POLYETHYLENE WITH SAID RUBBERY POLYMER AT A TEMPERATURE ABOVE THE SOFTENING POINT OF SAID POLYETHYLENE AND, SUBSEQUENTLY AND AS THE FINAL MILLING OPERATION, MILLING SAID BLEND AT A TEMPERATURE SUBSTANTIALLY BELOW THE SOFTENING POINT OF SAID POLYETHYLENE UNTIL A HOMOGENEOUS COMPOSITION RESULTS, COMPOUNDING INGREDIENTS BEING ADDED DURING AT LEAST ONE OF SAID BLENDING AND MILLING OPERATIONS AND VULCANIZING SAID BLEND.
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) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |