Patent US4273552A successfully refreshed from Google Patents.
US4273552A
Expired / Lapsed
US
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Process for the pretreatment of cellulose fibers to be printed according to the thermotransfer printing method
Assignee: Hoechst AG
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Filing: 1979-09-12
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Granted: 1981-06-16
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Expires: 1999-09-12
Abstract
Abstract A process for the pretreatment of cellulose fibers which are printed according to the thermotransfer printing process, which comprises impregnating the fiber material with a solution or dispersion containing a compound of the formula ##STR1## in which x is 2 or 3, A represents--if x=2--a group of the formula ##STR2## or -if x=3 --represents a group of the formula ##STR3## W is a group of the formula --CH 2 --or ##STR4## R is hydrogen or methyl, m is a number of from 1 to 30, preferably from 4 to 11, and n is a number of from 1 to 30, preferably from 1 to 10, as well as a polymerization catalyst, and steaming and drying the material.
Inventors
- 👤 Ehrenfried Nischwitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:41
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/003; D06P5/004; D06P5/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
In a process for the thermotransfer printing of cellulose fibers, the improvement which consists of printing such cellulose fibers which have been treated prior to the printing by impregnating the fiber material with a solution or dispersion containing a compound of the formula ##STR9## in which x is 2 or 3, A represents--if x=2--a group of the formula ##STR10## or--if x=3--represents a group of the formula ##STR11## W is a group of the formula --CH 2 -- or ##STR12## R is hydrogen or methyl, m is a number of from 1 to 30, preferably from 4 to 11, and n is a number of from 1 to 30, preferably from 1 to 10, as well as a polymerization catalyst, and steaming and drying the material.
Claim 2
Dependent Claim
125 words
In a process for the thermotransfer printing of cellulose fibers, the improvement which consists of printing such cellulose fibers which have been treated prior to the printing by impregnating the fiber material with a solution or dispersion containing a compound of the formula ##STR9## in which x is 2 or 3, A represents--if x=2--a group of the formula ##STR10## or--if x=3--represents a group of the formula ##STR11## W is a group of the formula --CH 2 -- or ##STR12## R is hydrogen or methyl, m is a number of from 1 to 30, preferably from 4 to 11, and n is a number of from 1 to 30, preferably from 1 to 10, as well as a polymerization catalyst, and steaming and drying the 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) | 1984-06-15 | 1984-12-15 | 1985-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-15 | 1988-12-15 | 1989-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-15 | 1992-12-15 | 1993-06-16 | $7700.00 | Window Closed / Lapsed |