Aqueous solutions or dispersions of polyisocyanate addition prod

Paper making and fiber liberation – Processes and products – With coating after drying

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1621646, 524591, 524839, 524840, C08L 7500, D21H 348

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active

046701001

ABSTRACT:
The present invention relates to aqueous solutions or dispersions of polyisocyanate addition products which contain about 2 to 300 milliequivalents per 100 g of solids of chemically incorporated ternary or quaternary ammonium groups and up to about 25% by weight, based on solids, of chemically incorporated ethylene oxide units, --CH.sub.2 --CH.sub.2 --O--, present within a polyether chain, the ternary or quaternary ammonium groups and the ethylene oxide units being present in an amount sufficient to guarantee the solubility or dispersibility of the polyisocyanate addition products in water, characterized in that the polyisocyanate addition products have segments incorporated in the polymer chain which correspond to the following general formula ##STR1## in an amount of about 0.1 to 20% by weight based on the above formula, but excluding the weight of R.
The present invention also relates to a process for the production of 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 sizing agents for paper.

REFERENCES:
patent: 3036998 (1962-05-01), Rudner
patent: 3388087 (1968-06-01), Dieterich et al.
patent: 3480592 (1969-11-01), Dieterich et al.
patent: 3686108 (1972-08-01), Reiff et al.
patent: 3756992 (1973-09-01), Dieterich
patent: 4028310 (1977-06-01), Schafer et al.
patent: 4086193 (1978-04-01), Reischl
patent: 4108814 (1978-08-01), Reiff
patent: 4172936 (1979-10-01), Schafer et al.
patent: 4623416 (1986-11-01), Henning
Angewandte Chemie 82, vol. 9, 1970, "Polyurethane Ionomers, A New Class of Block Polymers".

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