Patent US2741535A successfully refreshed from Google Patents.
US2741535A
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Aftertreatment of dyeings and compositions therefor
Assignee: GAF Chemicals Corp
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Filing: 1952-11-15
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Granted: 1956-04-10
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Expires: 1972-11-15
Abstract
No abstract record available.
Inventors
- 👤 Streck Clemens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:39
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/673; D06P1/67333; D06P1/67341; D06P1/64; D06P1/642; D06P1/647; D06P1/653; D06P1/6533; D06P3/00; D06P3/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A COMPOSITION FOR AFTERTREATING DYEINGS AND PRINTS COMPRISING FROM 10 TO 100 PARTS OF A COPPER COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE READILY WATERDISPERSIBLE HYDROXIDE AND SALTS OF COPPER, FROM 2 TO 50 PARTS OF AN A-AMINOCARBOXYLIC ACID CAPABLE OF FORMING A SOLUBLE COMPLEX WITH THE COPPER COMPOUND AND FROM 0 TO 45 PARTS OF A BUFFERING AGENT EFFECTIVE IN MAINTAINING THE PH OF THE AFTERTREATING COMPOSITION WITHIN A RANGE OF ABOUT 5.5 TO 7.0 FOR EACH 100 PARTS OF AN ACIDIC CONDENSATION PRODUCT OF ABOUT 1.5 TO 2.5 MOLES OF FORMALDEHYDE, ABOUT 1 MOLE OF DICYANDIAMIDE AND ABOUT 0.5 TO 1 MOLE OF A WATER SOLUBLE EASILY IONIZABLE AMMONIUM SALT OF AN ACID, SAID ACID BEING SELECTED FROM THE GROUP CONSISTING OF INORGANIC AND LOWER FATTY ACIDS.
Claim 2
Dependent Claim
130 words
A COMPOSITION FOR AFTERTREATING DYEINGS AND PRINTS COMPRISING FROM 10 TO 100 PARTS OF A COPPER COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE READILY WATERDISPERSIBLE HYDROXIDE AND SALTS OF COPPER, FROM 2 TO 50 PARTS OF AN A-AMINOCARBOXYLIC ACID CAPABLE OF FORMING A SOLUBLE COMPLEX WITH THE COPPER COMPOUND AND FROM 0 TO 45 PARTS OF A BUFFERING AGENT EFFECTIVE IN MAINTAINING THE PH OF THE AFTERTREATING COMPOSITION WITHIN A RANGE OF ABOUT 5.5 TO 7.0 FOR EACH 100 PARTS OF AN ACIDIC CONDENSATION PRODUCT OF ABOUT 1.5 TO 2.5 MOLES OF FORMALDEHYDE, ABOUT 1 MOLE OF DICYANDIAMIDE AND ABOUT 0.5 TO 1 MOLE OF A WATER SOLUBLE EASILY IONIZABLE AMMONIUM SALT OF AN ACID, SAID ACID BEING SELECTED FROM THE GROUP CONSISTING OF INORGANIC AND LOWER FATTY ACIDS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |