US3223664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic molding compositions
Assignee: Procter and Gamble Co
•
Filing: 1963-02-04
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Granted: 1965-12-14
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Expires: 1983-02-04
Abstract
No abstract record available.
Inventors
- 👤 Conlon Ralph David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:51
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/16; C08K3/18; C08K3/24; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A METHOD FOR PREPARING A PARTICULATE THERMOPLASTIC RESIN MOLDING COMPOSITION HAVING IMPROVED MOLDING AND PROCESSING CHARACTERISTICS COMPRISING THE STEPS OF: (1) PREPARING AN AQUEOUS SOLUTION OF SODIUM CHLORIDE: (2) APPLYING SAID SOLUTION TO A PARTICULATE THERMOPLASTIC MOLDING RESIN SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE, POLYMETHYLMETHACRYLATE, POLYPROPYLENE, POLYSTYRENE, POLYVINYL CHLORIDE AND COMBINATIONS AND COPOLYMERS THEREOF; AND (3) EVAPORATING THE WATER UNTIL THE GRANULES ARE SUBSTANTIALLY DRY, THE CONCENTRATION OF SODIUM CHLORIDE IN THE DRY GRANULES RANGING FROM ABOUT 0.01% TO ABOUT 10% BY WEIGHT OF THE THERMOPLASTIC RESIN.
Claim 2
Independent Claim
88 words
A METHOD FOR PREPARING A PARTICULATE THERMOPLASTIC RESIN MOLDING COMPOSITION HAVING IMPROVED MOLDING AND PROCESSING CHARACTERISTICS COMPRISING THE STEPS OF: (1) PREPARING AN AQUEOUS SOLUTION OF SODIUM CHLORIDE: (2) APPLYING SAID SOLUTION TO A PARTICULATE THERMOPLASTIC MOLDING RESIN SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE, POLYMETHYLMETHACRYLATE, POLYPROPYLENE, POLYSTYRENE, POLYVINYL CHLORIDE AND COMBINATIONS AND COPOLYMERS THEREOF; AND (3) EVAPORATING THE WATER UNTIL THE GRANULES ARE SUBSTANTIALLY DRY, THE CONCENTRATION OF SODIUM CHLORIDE IN THE DRY GRANULES RANGING FROM ABOUT 0.01% TO ABOUT 10% BY WEIGHT OF THE THERMOPLASTIC RESIN.
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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |