Patent US2961349A successfully refreshed from Google Patents.
US2961349A
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US
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Process for fixing pigments on fibrous materials
Assignee: Hoechst AG
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Filing: 1957-08-16
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Granted: 1960-11-22
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Expires: 1977-08-16
Abstract
No abstract record available.
Inventors
- 👤 Bartl Hugo
- 👤 Bestian Herbert
- 👤 Diery Helmut
- 👤 Heyna Johannes
- 👤 Ruckert Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:06
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A PROCESS FOR FIXING A PIGMENT ON A FIBROUS MATERIAL WHICH COMPRISES APPLYING TO THE FIBROUS MATERIAL A PIGMENT, A RESINOUS ALKALI-SOLUBLE CONDENSATION PRODUCT OF A POLYBASIC ORGANIC ACID AND A POLYHYDRIC ALIPHATIC ALCOHOL CONTAINING REACTIVE CARBOXYL GROUPS AND DISSOLVED IN AN ALKALINE MEDIUM, A POLYFUNCTIONAL ETHYLENE IMINE COMPOUND CONTAINING AT LEAST TWO REACTIVE ETHYLENE IMINE GROUPS, AND A WATER-SOLUBLE PRECONDENSATION PRODUCT OF FORMALDEHYDE AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF PHENOL, ALKYPHENOL, UREA, DIUREA, ALKYLUREA AND MELAMINE, DRYING AND HEATING THE IMPRENATED MATERIAL.
Claim 2
Dependent Claim
86 words
A PROCESS FOR FIXING A PIGMENT ON A FIBROUS MATERIAL WHICH COMPRISES APPLYING TO THE FIBROUS MATERIAL A PIGMENT, A RESINOUS ALKALI-SOLUBLE CONDENSATION PRODUCT OF A POLYBASIC ORGANIC ACID AND A POLYHYDRIC ALIPHATIC ALCOHOL CONTAINING REACTIVE CARBOXYL GROUPS AND DISSOLVED IN AN ALKALINE MEDIUM, A POLYFUNCTIONAL ETHYLENE IMINE COMPOUND CONTAINING AT LEAST TWO REACTIVE ETHYLENE IMINE GROUPS, AND A WATER-SOLUBLE PRECONDENSATION PRODUCT OF FORMALDEHYDE AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF PHENOL, ALKYPHENOL, UREA, DIUREA, ALKYLUREA AND MELAMINE, DRYING AND HEATING THE IMPRENATED MATERIAL.
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) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |