US2665262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating compositions for recording media
Assignee: Interchemical Corp
•
Filing: 1950-08-04
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Granted: 1954-01-05
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Expires: 1970-08-04
Abstract
No abstract record available.
Inventors
- 👤 Clifford J Rolle
- 👤 William Van Kirk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:46
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
IN A COATING COMPOSITION FOR RECORDING MEDIA CONSISTING OF A FILM FORMING BINDER AND A SOLVENT MIXTURE CAPABLE OF DISSOLVING THE BINDER AND CONSISTING OF A RAPIDLY EVAPORATING SOLVENT FOR THE BINDER AND A NON-SOLVENT FOR THE BINDER WHICH EVAPORATES AT A SUBSTANTIALLY LOWER RATE THAN THE RAPIDLY EVAPORATING SOLVENT, THE SAID SOLVENT MIXTURE BEING SO PROPORTIONED THAT, ON DRYING, THE SAID BINDER PRECIPITATES IN FORM OF DISCRETE PARTICLES WITH AIR BETWEEN THEM, THE IMPROVEMENT OF USING AS BINDER 10 TO 15 PARTS OF VINYL CHLORIDE-VINYL ACETATE COPOLYMER HAVING A MOLECULAR WEIGHT OF ABOUT 10,000 DISSOLVING THE SAID BINDER IN A SOLVENT MIXTURE CONSISTING OF 30 TO 45 PARTS OF A SOLVENT FOR THE BINDER WHICH IS HIGHLY VOLATILE AND 25 TO 40 PARTS OF A NON-SOLVENT FOR THE BINDER WHICH IS LESS VOLATILE THAN THE SOLVENT FOR THE BINDER, ADDING 12 TO 18 PARTS OF A SOFTENER IN WHICH THE SAID BINDER IS SUBSTANTIALLY INSOLUBLE, AND ADDING TO 100 PARTS OF THE FOREGOING COMPOSITION 10 TO 15 PARTS OF A FINELY DIVIDED INERT SOLID MATERIAL OF LOW TINTING STRENGTH.
Claim 2
Dependent Claim
180 words
IN A COATING COMPOSITION FOR RECORDING MEDIA CONSISTING OF A FILM FORMING BINDER AND A SOLVENT MIXTURE CAPABLE OF DISSOLVING THE BINDER AND CONSISTING OF A RAPIDLY EVAPORATING SOLVENT FOR THE BINDER AND A NON-SOLVENT FOR THE BINDER WHICH EVAPORATES AT A SUBSTANTIALLY LOWER RATE THAN THE RAPIDLY EVAPORATING SOLVENT, THE SAID SOLVENT MIXTURE BEING SO PROPORTIONED THAT, ON DRYING, THE SAID BINDER PRECIPITATES IN FORM OF DISCRETE PARTICLES WITH AIR BETWEEN THEM, THE IMPROVEMENT OF USING AS BINDER 10 TO 15 PARTS OF VINYL CHLORIDE-VINYL ACETATE COPOLYMER HAVING A MOLECULAR WEIGHT OF ABOUT 10,000 DISSOLVING THE SAID BINDER IN A SOLVENT MIXTURE CONSISTING OF 30 TO 45 PARTS OF A SOLVENT FOR THE BINDER WHICH IS HIGHLY VOLATILE AND 25 TO 40 PARTS OF A NON-SOLVENT FOR THE BINDER WHICH IS LESS VOLATILE THAN THE SOLVENT FOR THE BINDER, ADDING 12 TO 18 PARTS OF A SOFTENER IN WHICH THE SAID BINDER IS SUBSTANTIALLY INSOLUBLE, AND ADDING TO 100 PARTS OF THE FOREGOING COMPOSITION 10 TO 15 PARTS OF A FINELY DIVIDED INERT SOLID MATERIAL OF LOW TINTING STRENGTH.
References Cited (Backward Citations)
US2407668A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |