AQUEOUS SOLUTIONS OR DISPERSIONS OF POLYISOCYANATE ADDITION PRODUCTS, A PROCESS FOR THE PRODUCTION THEREOF AND THE USE THEREOF AS COATING AGENTS OR AS SIZING AGENTS FOR PAPER

AQUEOUS SOLUTIONS OR DISPERSIONS OF POLYISOCYANATE ADDITION PRODUCTS> A PROCESS FOR THE PRODUCTION THEREOF AND THE USE THEREOF AS COATING AGENTS OR AS SIZING AGENTS FOR PAPER The present invention relates to aqueous solutions or dispersions of polyisocyanate addition products, which contain a qua...

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Hauptverfasser:	BECK, ULRICH, HENNING, WOLFGANG, BAEUMGEN, HEINZ, MECKEL, WALTER
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR IMPREGNATING OR COATING OF PAPER LAUNDERING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G TREATMENT OF TEXTILES OR THE LIKE TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS
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Zusammenfassung:	AQUEOUS SOLUTIONS OR DISPERSIONS OF POLYISOCYANATE ADDITION PRODUCTS> A PROCESS FOR THE PRODUCTION THEREOF AND THE USE THEREOF AS COATING AGENTS OR AS SIZING AGENTS FOR PAPER The present invention relates to aqueous solutions or dispersions of polyisocyanate addition products, which contain a quantity of incorporated sulphonate and/or carboxylate groups and optionally ethylene oxide units, -CH2-CH2-O-, incorporated in a polyether chain to guarantee the solubility or dispersibility thereof in water, the content of sulphonate and/or carboxylate groups being about 2 to 300 milliequivalents per 100 g of solids and the content of the aforementioned ethylene oxide units being up to about 25% by weight, based on solids, characterized in that the polyisocyanate addition products have segments incorporated in the polymer chain which correspond to the following general formula: in an amount of about 0.1 to 20% by weight based on the above formulas, but excluding the weight of R. The present invention also relates to a process for the production of the polyisocyanate addition products and to their use as coating agents for flexible or inflexible substrates and as sizing agents for paper or for the production of sizing agents for paper.