Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1985-10-09
1986-10-07
Welsh, Maurice J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
4273855, 427389, 4273898, 4273899, 427391, 427392, 427393, 4284231, 4284234, 4284235, 4284237, 4284239, 4284251, 4284255, 4284256, C08L 7504
Patent
active
046160612
ABSTRACT:
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, --CH.sub.2 --CH.sub.2 --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: ##STR1## 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.
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Baumgen Heinz
Beck Ulrich
Henning Wolfgang
Meckel Walter
Bayer Aktiengesellschaft
Gil Joseph C.
Harsh Gene
Roy Thomas W.
Welsh Maurice J.
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