US2975147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising polyester, protective colloid and clay and paper coated therewith
Assignee: Sherwin Williams Co
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Filing: 1958-05-05
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Granted: 1961-03-14
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Expires: 1978-05-05
Abstract
No abstract record available.
Inventors
- 👤 Corliss W Abbott
- 👤 Howard I Freeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:10
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/62; C; C09; C09D; C09D167/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
A WATER-REDUCIBLE PAPER COATING COMPOSITION CONTAINING (1) FROM ABOUT 3 TO ABOUT 30 PARTS BY WEIGHT ON THE DRY BASIS OF A BINDER COMPRISING (A) A POLYESTER AND (B) A PROTECTIVE COLLOID IN AN AQUEOUS SOLUTION, THE WEIGHT RATIO OF PROTECTIVE COLLOID TO POLYESTER BEING FROM ABOUT 100:1 TO ABOUT 1:1, AND (II) FROM ABOUT 70 PARTS TO ABOUT 97 PARTS BY WEIGHT OF A KAOLINITC CLAY, THE TOTAL OF (I) AND (II) BEING 100 PARTS, SAID POLYESTER BEING A POLYESTER OF A PHTHALIC ACID MATERIAL SELECTED FROM THE GROUP CONSISTING OF PHTHALIC ACID, ISOMERS OF PHTHALIC ACID, MONOCHLORO PHTHALIC ACID, DICHLORO PHTHALIC ACID, TRICHLORO PHTHALIC ACID, TETRACHOLO PHTHALIC ACID AND, ALKYL SUBSTITUTED DERIVATIVES OF PHTHALIC ACID, AND ANHYDRIDES THEREOF, A C2-C6 GLYCOL, AND A C3-C10 POLYHYDRIC ALCOHOL CONTAINING AT LEAST THREE HYDROXYL GROUPS ATTACHED TO DIFFERENT CARBON ATOMS, SAID POLYHYDRIC ALCOHOL BEING COMPOSED OF ONLY THE ELEMENTS CARBON HYDROGEN AND OXYGEN, THE RATIO OF HYDROXYL TO CARBOXYL IN SAID POLYESTER BEING IN THE RANGE OF FROM ABOUT 0.9 TO ABOUT 1.9 AND THE ACID VALUE THEREOF BEING IN THE RANGE OF FROM ABOUT 30 TO ABOUT 85.
Claim 2
Dependent Claim
188 words
A WATER-REDUCIBLE PAPER COATING COMPOSITION CONTAINING (1) FROM ABOUT 3 TO ABOUT 30 PARTS BY WEIGHT ON THE DRY BASIS OF A BINDER COMPRISING (A) A POLYESTER AND (B) A PROTECTIVE COLLOID IN AN AQUEOUS SOLUTION, THE WEIGHT RATIO OF PROTECTIVE COLLOID TO POLYESTER BEING FROM ABOUT 100:1 TO ABOUT 1:1, AND (II) FROM ABOUT 70 PARTS TO ABOUT 97 PARTS BY WEIGHT OF A KAOLINITC CLAY, THE TOTAL OF (I) AND (II) BEING 100 PARTS, SAID POLYESTER BEING A POLYESTER OF A PHTHALIC ACID MATERIAL SELECTED FROM THE GROUP CONSISTING OF PHTHALIC ACID, ISOMERS OF PHTHALIC ACID, MONOCHLORO PHTHALIC ACID, DICHLORO PHTHALIC ACID, TRICHLORO PHTHALIC ACID, TETRACHOLO PHTHALIC ACID AND, ALKYL SUBSTITUTED DERIVATIVES OF PHTHALIC ACID, AND ANHYDRIDES THEREOF, A C2-C6 GLYCOL, AND A C3-C10 POLYHYDRIC ALCOHOL CONTAINING AT LEAST THREE HYDROXYL GROUPS ATTACHED TO DIFFERENT CARBON ATOMS, SAID POLYHYDRIC ALCOHOL BEING COMPOSED OF ONLY THE ELEMENTS CARBON HYDROGEN AND OXYGEN, THE RATIO OF HYDROXYL TO CARBOXYL IN SAID POLYESTER BEING IN THE RANGE OF FROM ABOUT 0.9 TO ABOUT 1.9 AND THE ACID VALUE THEREOF BEING IN THE RANGE OF FROM ABOUT 30 TO ABOUT 85.
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) | 1964-03-13 | 1964-09-12 | 1965-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-13 | 1968-09-12 | 1969-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-13 | 1972-09-12 | 1973-03-14 | $7700.00 | Window Closed / Lapsed |