Paint stripping composition and process
Abstract
Abstract WHERE R IS AN ALIPHATIC GROUP HAVING FROM 8 TO 18 CARBONS AND R'' IS AN ALKYL GROUP HAVING FROM 1 TO 8 CARBONS, OR ALKYLBENZENE SULFONIC ACID OR SALTS THEREOF, FROM 0.1 TO 10 PARTS OF AMMONIUM BIFLUORIDE DISSOLVED IN FROM ABOUT 3 UP TO 20 PARTS OF WATER, AND OPTIONALLY, EVAPORATION RETARDERS AND THICKENERS. RNHR''COOH PAINTS ARE REMOVED FROM SURFACES USING A PAINT STRIPPER COMPRISING FROM 50 TO 90 PARTS OF A CHLORINATED LIQUID HYDROCARBON SOLVENT, 2 TO 15 PARTS OF A LOWER ALIPHATIC ALCOHOL OR THEIR GLYCOL ETHERS, 0.1 TO 15 PARTS OF A LOWER CARBOXYLIC ACID, 2 TO 30 PARTS OF HYDROXYBENZENES SUCH AS PHENOLS OR THEIR DERIVATIVES, 2 TO 10 PARTS FATTY ACID SULFONATE OR A SALT OF A FATTY AMINE CARBOXYLIC ACID HAVING THE FORMULA
Inventors
- 👤 Millard J Laugle
Bibliographic Details
Claims Analysis
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |