US4076494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic compounds
Assignee: Sandoz AG
•
Filing: 1976-11-03
•
Granted: 1978-02-28
•
Expires: 1996-11-03
Abstract
Abstract Disclosed is a preparation, for use in the production of inks for transfer printing, which preparation comprises, in intimate admixture, a disperse dye and/or dispersion optical brightener, sublimable in the range of from 180 DEG to 220 DEG C, and a dispersing aid being a compound of formula I, <IMAGE> I in which R1, R2 and R3, independently, are straight or branched chain C2-8alkylene radicals, the OH groups being bound other than onto the carbon atoms adjacent the nitrogen atoms, THE PRODUCTION AND USE THEREOF.
Inventors
- 👤 Johann Schuster
- 👤 Karl Taubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:49
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0071; C09B67/0084; C09B67/0085; C09B67/008; C09D; C09D11/00; C09D11/02; C09D11/03; C09D17/00; C09D17/003; D; D06; D06L; D06L4/00; D06L4/60; D06L4/643; D06L4/664; D06P; D06P5/00; D06P5/003; D06P5/004
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
51 words
A composition suitable for use in transfer printing inks which comprises, in intimate admixture, a disperse dye or dispersion optical brightener sublimable at a temperature of 180° to 220° C., or a mixture of such a dye and optical brightener, and, as a dispersing aid, a compound of the formula ##STR3##
Claim 2
Dependent Claim
51 words
A composition suitable for use in transfer printing inks which comprises, in intimate admixture, a disperse dye or dispersion optical brightener sublimable at a temperature of 180° to 220° C., or a mixture of such a dye and optical brightener, and, as a dispersing aid, a compound of the formula ##STR3##
Claim 3
Dependent Claim
22 words
An ink suitable for transfer printing comprising a composition according to claim 1 and a water, organic solvent or water/organic solvent base.
Claim 4
Dependent Claim
28 words
The composition of claim 1, wherein the weight ratio of the compound of formula I to the dye or brightener or mixture thereof is from 1:49 to 1:1.
Claim 5
Dependent Claim
13 words
The composition of claim 3, wherein said ratio is from 1:24 to 1:5.
Claim 6
Dependent Claim
13 words
The composition of claim 4, wherein said ratio is from 1:16.6 to 1:8.5.
Claim 7
Dependent Claim
31 words
The composition of claim 1 comprising, additionally, an emulsifier selected from condensation products of formaldehyde and a naphthalenesulphonic acid, and from C 6-12 alkyl esters of sulphosuccinic acid alkali metal salts.
Claim 8
Dependent Claim
18 words
The composition of claim 6, wherein said condensation product contains, on average, no more than six naphthalene units.
Claim 9
Dependent Claim
16 words
The composition of claim 7, wherein said condensation product is an alkali-metal salt of dinaphthylmethanedisulphonic acid.
Claim 10
Dependent Claim
11 words
The composition of claim 6, wherein said ester is sodium dioctylsulphosuccinate.
Claim 11
Dependent Claim
26 words
The composition of claim 6, wherein said emulsifier is present in an amount of from 0.01 to 3%, based on the dry weight of the composition.
Claim 12
Dependent Claim
13 words
The composition of claim 10, wherein said amount is from 0.02 to 2%.
Claim 13
Dependent Claim
8 words
The composition of claim 1 in powder form.
Claim 14
Dependent Claim
19 words
The composition of claim 12, wherein said powder form has an average particle size of less than 10 μ.
Claim 15
Dependent Claim
15 words
The composition of claim 13, wherein said average particle size is less than 5 μ.
Claim 16
Dependent Claim
15 words
The composition of claim 14, wherein said average particle size is less than 2 μ.
Claim 17
Dependent Claim
20 words
A temporary support for use in transfer printing having printed thereon a print formed from an ink of claim 2.
Claim 18
Dependent Claim
49 words
A transfer printing process comprising placing the print on the temporary support of claim 16 in contact with the substrate to be printed, and heating said support to a temperature at which the dyestuff or brightener sublimes and thereby transferring the print from said temporary support to said substrate.
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) | 1981-02-27 | 1981-08-29 | 1982-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-27 | 1985-08-29 | 1986-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-27 | 1989-08-29 | 1990-02-28 | $7700.00 | Window Closed / Lapsed |