US2961349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for fixing pigments on fibrous materials
Assignee: Hoechst AG
•
Filing: 1957-08-16
•
Granted: 1960-11-22
•
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 10:07
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)
US2317965A
Cited
US2471396A
Cited
US2540048A
Cited
US2494810A
Cited
US2586188A
Cited
US2762718A
Cited
US2760945A
Cited
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 |