US3713770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the dyeing or printing of textile materials made from polymers or copolymers of acrylonitrile
Assignee: Hoechst AG
•
Filing: 1971-01-20
•
Granted: 1973-01-30
•
Expires: 1991-01-20
Abstract
Abstract Process for the dyeing and printing of textile materials made from polymers or copolymers of acrylonitrile by using dyestuffs of the general formula WHEREIN R1, R2, and R3 each stands for a hydrogen atom or an optionally substituted lower alkyl group, Z represents a carboxylic ester group, Q stands for an aromatic or heterocyclic radical bound or not bound to the benzene nucleus b, X represents an anion, and wherein each benzene nucleus a or b or the radical Q may optionally be substituted by non-ionic substituents, and which dyeings and prints show very clear and brilliant shades and have good fastness properties.
Inventors
- 👤 K Lohe
- 👤 E Mundlos
- 👤 R Mohr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:07
CPC Classifications
C; C09; C09B; C09B11/00; C09B11/04; C09B11/26; C09B11/10; C09B11/24; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/927
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
22 words
A process for the dyeing or printing of textile materials made from polymers of acrylonitrile wherein the dyestuffs have the general formula
Claim 2
Dependent Claim
22 words
A process for the dyeing or printing of textile materials made from polymers of acrylonitrile wherein the dyestuffs have the general formula
Claim 3
Dependent Claim
133 words
A process as claimed in claim 1, wherein dyestuffs have the general formula I, and R1, R2 and R3 which may be the same or different each represents a hydrogen atom or an alkyl group containing of from one to four carbon atoms, Z represents a carboxylic acid ester group, the alkanol component of which optionally containing an alkoxy group, has from one to four carbon atoms, Q stands for a phenyl, naphthyl, benzthiazolyl, benzimidazolyl, indolyl or for an indazolyl radical which may be condensed to the benzene nucleus b in order to form a N-heterocyclic ring, and which are unsubstituted or substituted by one or two chlorine atoms or by one or two lower alkoxy, lower alkyl, hydroxy, amino, phenoxy, phenylamino or carboxylic acid methyl ester radicals, and X represents an anion.
Claim 4
Dependent Claim
13 words
A process as claimed in claim 1, wherein said dyestuff has the formula
Claim 5
Dependent Claim
13 words
A process as claimed in claim 1, wherein said dyestuff has the formula
Claim 6
Dependent Claim
13 words
A process as claimed in claim 1, wherein said dyestuff has the formula
Claim 7
Dependent Claim
13 words
A process as claimed in claim 1, wherein said dyestuff has the formula
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) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |