Patent US3018262A successfully refreshed from Google Patents.
US3018262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curing polyepoxides with certain metal salts of inorganic acids
Assignee: Shell USA Inc
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Filing: 1957-05-01
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Granted: 1962-01-23
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Expires: 1977-05-01
Abstract
No abstract record available.
Inventors
- 👤 Carl W Schroeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:23
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/4007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A COMPOSITION SUITABLE FOR USE IN TREATING TEXTILES COMPRISING AN AQUEOUS MEDIUM CONTAINING A GLYCIDYL POLYETHER OF A POLYDRIC ALCOHOL HAVING AN EPOXY EQUIVALENCY BETWEEN 1.1 AND 3 AND A MOLECULAR WEIGHT BETWEEN 170 AND 800, AND FROM 0.1% TO 30% BY WEIGHT OF THE SAID GLYCIDYL POLYETHER OF A CURING AGENT CONSISTING OF A SALT OF (1) A METAL OF THE GROUP CONSISTING OF ZINC, MAGNESIUM, COPPER, ALUMINUM, NICKEL, CADMIUM, CERIUM, STRONTIUM, CALCIUM, IRON, COBALT, CHROMIUM, MERCURY, BERYLLIUM, ZIRCONIUM, LEAD, TIN AND SELENIUM, AND (2) AN INORGANIC ACID OF THE GROUP CONSISTING OF SULFURIC, FLUOSILICIC, PHOSPHORIC, PHOSPHOROUS, PERCHLORIC, AND CHLORIC ACID.
Claim 2
Dependent Claim
102 words
A COMPOSITION SUITABLE FOR USE IN TREATING TEXTILES COMPRISING AN AQUEOUS MEDIUM CONTAINING A GLYCIDYL POLYETHER OF A POLYDRIC ALCOHOL HAVING AN EPOXY EQUIVALENCY BETWEEN 1.1 AND 3 AND A MOLECULAR WEIGHT BETWEEN 170 AND 800, AND FROM 0.1% TO 30% BY WEIGHT OF THE SAID GLYCIDYL POLYETHER OF A CURING AGENT CONSISTING OF A SALT OF (1) A METAL OF THE GROUP CONSISTING OF ZINC, MAGNESIUM, COPPER, ALUMINUM, NICKEL, CADMIUM, CERIUM, STRONTIUM, CALCIUM, IRON, COBALT, CHROMIUM, MERCURY, BERYLLIUM, ZIRCONIUM, LEAD, TIN AND SELENIUM, AND (2) AN INORGANIC ACID OF THE GROUP CONSISTING OF SULFURIC, FLUOSILICIC, PHOSPHORIC, PHOSPHOROUS, PERCHLORIC, AND CHLORIC ACID.
References Cited (Backward Citations)
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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) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |