US3165484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon paper ink containing a trimellitic acid-alkanol-neopentyl glycol polyester
Assignee: Standard Oil Co
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Filing: 1960-03-31
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Granted: 1965-01-12
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Expires: 1980-03-31
Abstract
No abstract record available.
Inventors
- 👤 Ronald L Broadhead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:49
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A COATING COMPOSITION SUITABLE FOR PREPARATION OF CARBON PAPER WHICH COMPOSITION CONSISTS ESSENTIALLY OF (A) MINERAL OIL HAVING AN SSU VISCOSITY AT 100*F. OF ABOUT 70-425; (B) A COLOR AFFORDING INGREDIENT; AND (C) WAXY RESIN PREPARED BY THE POLYESTERIFICATION-CONDENSATION REACTION OF (1) A MONOESTER OF AN ACIDIC MEMBER SELECTED FROM THE CLASS CONSISTING OF TRIMELITIC ACID AND ANHYDRIDE THEREOF AND A PRIMARY ALKANOL CONTAINING FROM AT LEAST 18 TO ABOUT 36 CARBON ATOMS AND (II) AN ALKANEDIOL CONTAINING FROM 2 TO 6 CARBON ATOMS IN A STRAIGHT CHAIN BETWEEN HYDROXYL GROUPS AND A TOTAL OF NOT MORE THAN 12 CARBON ATOMS IN A MOLE RATIO OF SAID ALKANEDIOL TO SAID MONOESTER OF FROM ABOUT 0.9:1 TO ABOUT 1.2:1, SAID REACTION BEING AT A TEMPERATURE BETWEEN ABOUT 125*C. AND 225*C., WITH CONTINUOUS WITHDRAWAL OF WATER OF REACTION TO OBTAIN A WAXY SOLID RESIN PRODUCT HAVING AN ACID NUMBER OF NOT MORE THAN ABOUT 30.
Claim 2
Dependent Claim
153 words
A COATING COMPOSITION SUITABLE FOR PREPARATION OF CARBON PAPER WHICH COMPOSITION CONSISTS ESSENTIALLY OF (A) MINERAL OIL HAVING AN SSU VISCOSITY AT 100*F. OF ABOUT 70-425; (B) A COLOR AFFORDING INGREDIENT; AND (C) WAXY RESIN PREPARED BY THE POLYESTERIFICATION-CONDENSATION REACTION OF (1) A MONOESTER OF AN ACIDIC MEMBER SELECTED FROM THE CLASS CONSISTING OF TRIMELITIC ACID AND ANHYDRIDE THEREOF AND A PRIMARY ALKANOL CONTAINING FROM AT LEAST 18 TO ABOUT 36 CARBON ATOMS AND (II) AN ALKANEDIOL CONTAINING FROM 2 TO 6 CARBON ATOMS IN A STRAIGHT CHAIN BETWEEN HYDROXYL GROUPS AND A TOTAL OF NOT MORE THAN 12 CARBON ATOMS IN A MOLE RATIO OF SAID ALKANEDIOL TO SAID MONOESTER OF FROM ABOUT 0.9:1 TO ABOUT 1.2:1, SAID REACTION BEING AT A TEMPERATURE BETWEEN ABOUT 125*C. AND 225*C., WITH CONTINUOUS WITHDRAWAL OF WATER OF REACTION TO OBTAIN A WAXY SOLID RESIN PRODUCT HAVING AN ACID NUMBER OF NOT MORE THAN ABOUT 30.
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) | 1968-01-12 | 1968-07-13 | 1969-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-12 | 1972-07-13 | 1973-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-12 | 1976-07-13 | 1977-01-12 | $7700.00 | Window Closed / Lapsed |