Patent US2550571A successfully refreshed from Google Patents.
US4229176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preventing oligomer deposits on dyed polyester textile material
Assignee: BASF Corp
•
Filing: 1978-08-07
•
Granted: 1980-10-21
•
Expires: 1998-08-07
Abstract
Abstract A process for preventing oligomer deposits on dyeings produced on textile material consisting of or containing polyester fibers, which process comprises applying to said material during or after dyeing a phthalic acid ester of the formula ##STR1## wherein R is alkyl or alkenyl of 6 to 22 carbon atoms, X 1 and X 2 , is hydrogen or methyl and the other is hydrogen, Z is hydrogen or alkyl of 1 to 4 carbon atoms, and n is 1 to 4.
Inventors
- 👤 Paul Schafer
- 👤 Heinz Abel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:29
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/64; D06P1/651; D06P1/65106; D06P1/65125; D06P1/60; D06P1/613; D06P5/00; D06P5/02; D06P5/04
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
86 words
A process for preventing oligomer deposits on dyeings produced on polyester textile material containing up to 100 polyester fibers, which process comprises applying to said material during or after the dyeing procedure a phthalic acid ester of the formula ##STR6## wherein R is alkyl or alkenyl of 6 to 22 carbon atoms, one of X 1 and X 2 , is hydrogen or methyl and the other is hydrogen, Z is hydrogen or alkyl of 1 to 4 carbon atoms, and n is 1 to 4.
Claim 2
Dependent Claim
86 words
A process for preventing oligomer deposits on dyeings produced on polyester textile material containing up to 100 polyester fibers, which process comprises applying to said material during or after the dyeing procedure a phthalic acid ester of the formula ##STR6## wherein R is alkyl or alkenyl of 6 to 22 carbon atoms, one of X 1 and X 2 , is hydrogen or methyl and the other is hydrogen, Z is hydrogen or alkyl of 1 to 4 carbon atoms, and n is 1 to 4.
Claim 3
Dependent Claim
34 words
A process according to claim 1 wherein the phthalic acid ester is of the formula ##STR7## wherein R, X 1 , X 2 , Z and n having the meanings given in claim 1.
Claim 4
Dependent Claim
10 words
A process according to claim 1 wherein z is hydrogen.
Claim 5
Dependent Claim
24 words
A process according to claim 1 wherein R is alkyl of 8 to 22 carbon atoms and X 1 and X 2 are hydrogen.
Claim 6
Dependent Claim
16 words
A process according to claim 4 wherein R is alkyl of 12 to 18 carbon atoms.
Claim 7
Dependent Claim
12 words
A process according to claim 1 wherein n is 2 or 3.
Claim 8
Dependent Claim
22 words
A process according to claim 1, wherein R is octadecyl, Z, X 1 and X 2 are hydrogen and n is 2.
Claim 9
Dependent Claim
23 words
A process according to claim 1 wherein R is dodecyl, X 1 , X 2 and Z are hydrogen and n is 2.
Claim 10
Dependent Claim
21 words
A process according to claim 1 wherein R is the hydrocarbon residue of an alfol containing 10 to 14 carbon atoms.
Claim 11
Dependent Claim
29 words
A process according to claim 1 wherein the treatment of the textile material with the phthalic acid ester of the formula (1) is carried out during the dyeing procedure.
Claim 12
Dependent Claim
24 words
A process according to claim 1 wherein the treatment of the textile material is carried out by the exhaust method during or after dyeing.
Claim 13
Dependent Claim
27 words
A process according to claim 11 wherein treatment of the textile material, is carried out during the dyeing procedure at a temperature of 110° to 140° C.
Claim 14
Dependent Claim
14 words
A process according to claim 12 wherein dyeing is carried out with disperse dyes.
Claim 15
Dependent Claim
28 words
A process according to claim 11 wherein the treatment of the textile material is carried out after the dyeing procedure at a temperature of 50° to 100° C.
Claim 16
Dependent Claim
23 words
A process according to claim 14 wherein the aftertreatment is carried out while simultaneously subjecting the dyed textile material to a reduction after-clear.
Claim 17
Dependent Claim
26 words
An aqueous liquor for carrying out the process according to claim 1 which contains a disperse dye and a phthalic acid ester of the formula (1).
References Cited (Backward Citations)
GB963902A
Cited
US3752649A
Cited
US3864077A
Cited
US4060387A
Cited
DE2403859A1
Cited
DE2412427A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-21 | 1984-04-21 | 1984-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-21 | 1988-04-21 | 1988-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-21 | 1992-04-21 | 1992-10-21 | $7700.00 | Window Closed / Lapsed |