Patent US3901648A successfully refreshed from Google Patents.
US3901648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for the colouration of polyurethanes
Assignee: ICI FRANCOLORS SA
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Filing: 1973-03-19
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Granted: 1975-08-26
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Expires: 1993-03-19
Abstract
Abstract Colouring composition comprising 1 to 20% of a dyestuff soluble in alcohols, 10 to 85% of a solvent containing an alcoholic function, 1 to 35% of a polar and aprotic solvent, 1 to 50% of an organic solvent not containing a hydroxy group, 0 to 2.5% of a film-forming product and 0 to 10% of water. These compositions are suitable for the colouration of a polyurethane or a polymer based on a polyurethane.
Inventors
- 👤 Paul Georges Louis Arbaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:27
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/02; D06P3/04; D06P3/24; C; C09; C09B; C09B67/00; C09B67/0071; D06P1/00; D06P1/90; D06P1/92; D06P1/928
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
173 words
A METHOD FOR THE COLORATION OF A SHAPED ARTICLE OF POLYURETHANE OR A POLYMER BASED ON A POLYURETHANE, WHICH COMPRISES, APPLYING A COLORING COMPOSITION IN A SINGLE STEP OF THE SURFACE A SHAPED ARTICLE OF SAID POLYURETHANE OR POLYMER BASED ON A POLYURETHANE AT A TEMPERATURE FROM AMBIENT TEMPERATURE UP TO 50*C, SAID COLOLRING COMPOSITION COMPRISING 1 TO 20% OF A DYESTUFF, SOLUBLE IN ALCOHOLS, CONSISTING OF EITHER A METALIFEROUS COMPLEX OF AN AZO DYESTUFF OF THE 1:2 TYPE, OR A SULPHONIC SALT OF A DYESTUFF WITH AN AMINE OF HIGH MOLECULAR WEIGHT, AND 10 TO 85% OF A SOLVENT CONTAINING AN ALCOHOLIC FUNCTION SELECTED FROM THE GROUP CONSISTING OF METHANOL, ETHANOL, PROPANOL, ISOPROPANOL, BUTANOL, ISOBUTANOL, ISOAMYL ALCOHOL, AND MIXTURES THEREOF, AND 1 TO 35% OF A POLAR AND APROTIC SOLVENT SELECTED FROM THE GROUP CONSISTING OF DIMETHYLFORMAMIDE, DIMETHYLACETAMIDE AND MIXTURES THEREOF, AND 1 TO 50% OF AHYDROXY-FREE ORGANIC SOLVENT SELECTED FROM THE GROUP CONSISTING OF METHYL, ETHYL, PROPYL, ISOPROPYL, BUTYL, AMYL AND ISOAMYL ACETATES OF MONOMETHYL AND MONOETHYL ETHER OF ETHYLENE GLYCOL.
Claim 2
Independent Claim
173 words
A METHOD FOR THE COLORATION OF A SHAPED ARTICLE OF POLYURETHANE OR A POLYMER BASED ON A POLYURETHANE, WHICH COMPRISES, APPLYING A COLORING COMPOSITION IN A SINGLE STEP OF THE SURFACE A SHAPED ARTICLE OF SAID POLYURETHANE OR POLYMER BASED ON A POLYURETHANE AT A TEMPERATURE FROM AMBIENT TEMPERATURE UP TO 50*C, SAID COLOLRING COMPOSITION COMPRISING 1 TO 20% OF A DYESTUFF, SOLUBLE IN ALCOHOLS, CONSISTING OF EITHER A METALIFEROUS COMPLEX OF AN AZO DYESTUFF OF THE 1:2 TYPE, OR A SULPHONIC SALT OF A DYESTUFF WITH AN AMINE OF HIGH MOLECULAR WEIGHT, AND 10 TO 85% OF A SOLVENT CONTAINING AN ALCOHOLIC FUNCTION SELECTED FROM THE GROUP CONSISTING OF METHANOL, ETHANOL, PROPANOL, ISOPROPANOL, BUTANOL, ISOBUTANOL, ISOAMYL ALCOHOL, AND MIXTURES THEREOF, AND 1 TO 35% OF A POLAR AND APROTIC SOLVENT SELECTED FROM THE GROUP CONSISTING OF DIMETHYLFORMAMIDE, DIMETHYLACETAMIDE AND MIXTURES THEREOF, AND 1 TO 50% OF AHYDROXY-FREE ORGANIC SOLVENT SELECTED FROM THE GROUP CONSISTING OF METHYL, ETHYL, PROPYL, ISOPROPYL, BUTYL, AMYL AND ISOAMYL ACETATES OF MONOMETHYL AND MONOETHYL ETHER OF ETHYLENE GLYCOL.
Claim 3
Dependent Claim
44 words
A method as set forth in claim 1, wherein said coloring composition contains a plasticizer selected from the group consisting of camphor, castor oil, tricresyl phosphate, butyl phthalate, quaternary ammonium salts with a fatty radical, silicone oil, and fatty acids in an organic solution.
Claim 4
Dependent Claim
33 words
A method as set forth in claim 1, wherein after applying said coloring composition, said polyurethane or polymer based on a polyurethane is dried at a temperature from ambient temperature up to 60*C.
Claim 5
Dependent Claim
21 words
A method as set forth in claim 1, wherein said coloring composition contains from 0 to 2.5% of a film-forming material.
Claim 6
Dependent Claim
28 words
A method as set forth in claim 1, wherein said coloring composition contains from 0 to 10% of water and from 0 to 2.5% of a film-forming material.
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) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |