US4380451A
Expired / Lapsed
US
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Continuous dyeing and simultaneous finishing of textile materials using defoaming agent of polyoxyalkylene polysiloxane copolymer and hydrophobic silica
Assignee: Bayer AG
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Filing: 1981-09-24
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Granted: 1983-04-19
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Expires: 2001-09-24
Abstract
Abstract A de-foaming agent comprising by weight about (a) 80 to 100 parts of a polyoxyalkylene-polysiloxane copolymer of the formula: [R.sup.1 Si(OSiR.sub.2).sub.n ].sub.m Z.sub.m-1 (OR.sup.2).sub.m+2, in which R represents an optionally halogen-substituted alkyl-group with up to 4 carbon atoms, R 1 represents the substituent R or a phenyl radical, R 2 represents a group of the composition ##STR1## Z represents the difunctional unit --O-- or ##STR2## and R 3 denotes a hydrocarbon radical with up to 6 carbon atoms, R 4 denotes independently from one another hydrogen or R 3 , n denotes a number between 3 and 40, m denotes a number between 1 and 15, x denotes a number between 0 and 68, y denotes a number between 0 and 52, x+y denotes a number between 1 and 68 and p denotes a number between 2 and 12, and (b) 0.5 to 20 parts of a hydrophobic silicon dioxide.
Inventors
- 👤 Helmut Steinberger
- 👤 Wilfried Kortmann
- 👤 Jurgen Tuschen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:58
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/77; D06M11/79; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/647; D06P; D06P1/00; D06P1/44; D06P1/52; D06P1/5264; D06P1/5292; D06P1/60; D06P1/613; D06P1/673; D06P1/67383; D06P1/96; D06P1/965; Y; Y10; Y10S; Y10S8/00; Y10S8/929
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
151 words
A de-foaming agent comprising by weight about (a) 80 to 100 parts of a polyoxyalkylenepolysiloxane copolymer of the formula: [R.sup.1 Si(OSiR.sub.2).sub.n ].sub.m Z.sub.m-1 (OR.sup.2).sub.m+2, in which R represents an optionally halogen-substituted alkyl group with up to 4 carbon atoms, R 1 represents the substituent R or a phenyl radical, R 2 represents a group of the composition ##STR5## Z represents the difunctional unit --O-- or ##STR6## and R 3 denotes a hydrocarbon radical with up to 6 carbon atoms; R 4 denotes independently from one another hydrogen or R 3 , n denotes a number between 3 and 40, m denotes a number between 1 and 15, x denotes a number between 0 and 68, y denotes a number between 0 and 52, x+y denotes a number between 1 and 68 and p denotes a number between 2 and 12, and (b) 0.5 to 20 parts of a hydrophobic silicon dioxide.
Claim 2
Dependent Claim
151 words
A de-foaming agent comprising by weight about (a) 80 to 100 parts of a polyoxyalkylenepolysiloxane copolymer of the formula: [R.sup.1 Si(OSiR.sub.2).sub.n ].sub.m Z.sub.m-1 (OR.sup.2).sub.m+2, in which R represents an optionally halogen-substituted alkyl group with up to 4 carbon atoms, R 1 represents the substituent R or a phenyl radical, R 2 represents a group of the composition ##STR5## Z represents the difunctional unit --O-- or ##STR6## and R 3 denotes a hydrocarbon radical with up to 6 carbon atoms; R 4 denotes independently from one another hydrogen or R 3 , n denotes a number between 3 and 40, m denotes a number between 1 and 15, x denotes a number between 0 and 68, y denotes a number between 0 and 52, x+y denotes a number between 1 and 68 and p denotes a number between 2 and 12, and (b) 0.5 to 20 parts of a hydrophobic silicon dioxide.
Claim 3
Dependent Claim
52 words
In the continuous dyeing of a textile material wherein a foam containing the dyestuff is applied to the textile material, the improvement which comprises simultaneously applying a finishing agent for the textile material and a defoaming agent according to claim 1, whereby the material is simultaneously dyed and finished in one operation.
Claim 4
Dependent Claim
18 words
A process according to claim 2, wherein the finishing agent comprises a dispersion of methylsilsesquioxane and silicic acid.
Claim 5
Dependent Claim
14 words
A process according to claim 2, wherein the textile material is a pile fabric.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-04-18 | 1986-10-18 | 1987-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-04-18 | 1990-10-18 | 1991-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-04-18 | 1994-10-18 | 1995-04-19 | $7700.00 | Window Closed / Lapsed |