US2514191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antisticking treatment of vinyl resins
Assignee: Bridgestone Firestone Inc
•
Filing: 1946-06-29
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Granted: 1950-07-04
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Expires: 1966-06-29
Abstract
No abstract record available.
Inventors
- 👤 George P Rowland
- 👤 Robert H Steiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:53
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/12; C08J3/124; C08J2327/00; C08J2327/02; C08J2327/04; C08J2327/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
PROCESS WHICH COMPRISES EXHAUSTIVELY WASHING WITH WATER A GRANULAR VINYL CHLORIDE BASED RESIN PRECIPITATED FROM A LATEX THEREOF UNTIL THE SALT CONCENTRATION IN THE WASHINGS IS REDUCED TO A VALUE EQUIVALENT, IN ELECTRICAL CONDUCTIVITY, TO ABOUT 2 PARTS PER MILLION OF SODIUM CHLORIDE, THE GRANULES OF SAID RESIN CONSISTING OF A VINYL CHLORIDE BASED RESIN, FURTHER WASHING THE VINYL CHLORIDE BASED RESIN, STILL CONSISTING OF A VINYL CHLORIDE BASED RESIN, WITH AN AQUEOUS DISPERSION OF A SURFACE-ACTIVE AGENT CONTAINING A FATTY GROUP OF AT LEAST 7 CARBON ATOMS AND BEING SELECTED FROM THE GROUP CONSISTING OF SULFONATED FATTY SUCCINIC ESTERS, FATTY AMINE SOAPS, ALKYLATED ARYL SUFONATES, FATTY ACIDE PARTIAL ESTERS OF HEXITAN ANHYDRIDES AND POLYOXYALKYLENE CONDENSATES OF HEXITAN ANHYDRIDES AND PARTIAL FATTY GLYCERIDE ESTERS, AND DRYING THE WASHED RESIN.
Claim 2
Dependent Claim
129 words
PROCESS WHICH COMPRISES EXHAUSTIVELY WASHING WITH WATER A GRANULAR VINYL CHLORIDE BASED RESIN PRECIPITATED FROM A LATEX THEREOF UNTIL THE SALT CONCENTRATION IN THE WASHINGS IS REDUCED TO A VALUE EQUIVALENT, IN ELECTRICAL CONDUCTIVITY, TO ABOUT 2 PARTS PER MILLION OF SODIUM CHLORIDE, THE GRANULES OF SAID RESIN CONSISTING OF A VINYL CHLORIDE BASED RESIN, FURTHER WASHING THE VINYL CHLORIDE BASED RESIN, STILL CONSISTING OF A VINYL CHLORIDE BASED RESIN, WITH AN AQUEOUS DISPERSION OF A SURFACE-ACTIVE AGENT CONTAINING A FATTY GROUP OF AT LEAST 7 CARBON ATOMS AND BEING SELECTED FROM THE GROUP CONSISTING OF SULFONATED FATTY SUCCINIC ESTERS, FATTY AMINE SOAPS, ALKYLATED ARYL SUFONATES, FATTY ACIDE PARTIAL ESTERS OF HEXITAN ANHYDRIDES AND POLYOXYALKYLENE CONDENSATES OF HEXITAN ANHYDRIDES AND PARTIAL FATTY GLYCERIDE ESTERS, AND DRYING THE WASHED RESIN.
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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) | 1953-07-03 | 1954-01-02 | 1954-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-03 | 1958-01-02 | 1958-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-03 | 1962-01-02 | 1962-07-04 | $7700.00 | Window Closed / Lapsed |