Patent US5372731A successfully refreshed from Google Patents.
US5372731A
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Composition and process for the finishing of textiles
Assignee: Bayer AG
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Filing: 1993-03-03
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Granted: 1994-12-13
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Expires: 2013-03-03
Abstract
Abstract Textiles can be finished in a wash- and cleaning-resistant manner by impregnation if aqueous dispersions are employed for this purpose which contain reactive copolymers and/or cocondensates having perfluoroalkyl groups and water-dispersible polyisocyanate mixtures whose NCO groups are not blocked.
Inventors
- 👤 Gisbert Michels
- 👤 Hans-Albert Ehlert
- 👤 Hans-Josef Laas
- 👤 Joachim Probst
- 👤 Helmut Reiff
- 👤 Rolf-Volker Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:44
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/564; D06M15/576; C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/54; C08G18/544; C08G18/62; C08G18/6275; C08G18/6279; C08G18/70; C08G18/703; C08G18/705; C08G18/706; C08G18/72; C08G18/77; C08G18/78; C08G18/79; C08G18/791; C08G18/792; D06M15/21; D06M15/263; D06M15/277; D06M15/53; D06M15/568
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
Compositions for obtaining wash- and cleaning-resistant textile finishes comprising reactive copolymers and/or condensates containing OH or O--C 1 -C 3 -alkyl groups as reactive groups and having perfluoroalkyl groups, and from 3 to 500% by weight, relative to the reactive copolymers and/or condensate containing perfluoroalkyl groups, water-dispersible, non-blocked polyisocyanate mixtures as crosslinking agents; said polyisocyanate mixtures containing isocyanate terminated species formed from the reaction product of a polyisocyanate component with a mono- or polyhydric polyalkylene oxide polyether alcohol component, said reaction product comprising: a) an average NCO functionality of 1.8 to 4.2, b) a content of (cyclo)aliphatically bonded isocyanate groups (calculated as NCO, molecular weight=42) of 12.0 to 21.5% by weight, and c) a content of ethylene oxide units arranged in polyether chains (calculated as C 2 H 4 O, molecular weight=44) of 2 to 20% by weight, the polyether chains on a statistical average containing from 5 to 70 ethylene oxide units.
Claim 2
Dependent Claim
153 words
Compositions for obtaining wash- and cleaning-resistant textile finishes comprising reactive copolymers and/or condensates containing OH or O--C 1 -C 3 -alkyl groups as reactive groups and having perfluoroalkyl groups, and from 3 to 500% by weight, relative to the reactive copolymers and/or condensate containing perfluoroalkyl groups, water-dispersible, non-blocked polyisocyanate mixtures as crosslinking agents; said polyisocyanate mixtures containing isocyanate terminated species formed from the reaction product of a polyisocyanate component with a mono- or polyhydric polyalkylene oxide polyether alcohol component, said reaction product comprising: a) an average NCO functionality of 1.8 to 4.2, b) a content of (cyclo)aliphatically bonded isocyanate groups (calculated as NCO, molecular weight=42) of 12.0 to 21.5% by weight, and c) a content of ethylene oxide units arranged in polyether chains (calculated as C 2 H 4 O, molecular weight=44) of 2 to 20% by weight, the polyether chains on a statistical average containing from 5 to 70 ethylene oxide units.
References Cited (Backward Citations)
DE1419505A1
Cited
GB933512A
Cited
US3356628A
Cited
US3639157A
Cited
US3759874A
Cited
GB1444933A
Cited
EP0073364A2
Cited
US4477498A
Cited
US4636545A
Cited
EP0156155A1
Cited
US4834764A
Cited
EP0196309A1
Cited
EP0206059A2
Cited
US4663377A
Cited
EP0273449A1
Cited
EP0283892A1
Cited
EP0340797A2
Cited
EP0435220A2
Cited
US5171877A
Cited
WO1993001349A1
Cited
DE4136618A1
Cited
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