US4046507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Commercial packages containing dyestuffs
Assignee: Novartis AG
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Filing: 1975-09-12
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Granted: 1977-09-06
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Expires: 1995-09-12
Abstract
Abstract New commercial packages of organic dyestuffs, characterised in that they consist of an organic dyestuff or an optical brightener in dry, pulverulent form that is provided with a wrapping, which is soluble in a solvent suitable for the preparation of a dye solution or dye paste, and with the dyestuff or optical brightener so wrapped being optionally provided with a second wrapping that is preferably impervious to water.
Inventors
- 👤 Hans Heini Zweifel
- 👤 Arthur Buehler
- 👤 Alfred Fasciati
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:25
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0097; D; D06; D06L; D06L4/00; D06L4/60; D06L4/664
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
48 words
A process for the preparation of an aqueous dyebath or aqueous printing paste, comprising the step of adding to the aqueous medium a dry pulverulent, water-soluble, fiberreactive dyestuff wrapped in a water-soluble foil material selected from the group consisting of mucin, hydroxyalkylcellulose, carboxymethylcellulose, polyvinylmethylether/maleic anhydride copolymer and polyvinylalcohol.
Claim 2
Dependent Claim
48 words
A process for the preparation of an aqueous dyebath or aqueous printing paste, comprising the step of adding to the aqueous medium a dry pulverulent, water-soluble, fiberreactive dyestuff wrapped in a water-soluble foil material selected from the group consisting of mucin, hydroxyalkylcellulose, carboxymethylcellulose, polyvinylmethylether/maleic anhydride copolymer and polyvinylalcohol.
Claim 3
Dependent Claim
11 words
The process of claim 1, wherein the foil material is polyvinylalcohol.
Claim 4
Dependent Claim
12 words
The process of claim 2, wherein the dyestuff is a monoazo dyestuff.
Claim 5
Dependent Claim
12 words
The process of claim 2, wherein the dyestuff is an anthraquinone dyestuff.
Claim 6
Dependent Claim
21 words
The process of claim 2, wherein the dyestuff contains a fiber-reactive group which is a halo-1,3,5-triazinyl group or a haloacyl group.
Claim 7
Dependent Claim
17 words
The process of claim 1, wherein the dyestuff is admixed with a dry, pulverulent optical brightener 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) | 1980-09-05 | 1981-03-07 | 1981-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-05 | 1985-03-07 | 1985-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-05 | 1989-03-07 | 1989-09-06 | $7700.00 | Window Closed / Lapsed |