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
1983-05-03
1985-02-12
Cockeram, Herbert S.
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...
528 69, 528904, C08G 1850, C08G 1832, C08G 1834
Patent
active
044992335
ABSTRACT:
A water dispersible, modified polyurethane which is the reaction product of polyisocyanate, polyether polyol, modifying agent containing at least two active hydrogen moieties and capping agent. The modified polyurethane is preferably prepared by reacting the polyisocyanate, the polyether polyol and the modifying agent and then adding the capping agent. The modified polyurethane resists microbial attack, exhibits superior efficiency in thickening aqueous compositions and imparts improved leveling.
Included among the modifying agents are ethylene diamine, 1,6-diaminohexane, 1,10-diaminodecane, N-phenyl-p-phenylenediamine, succinic acid, suberic acid, sebacic acid, 1,10-decanedicarboxylic acid, 1,4-benzene-dicarboxylic acid, ethanolamine, 2-(ethylamino)ethanol, and p-carboxyphenol and mixtures thereof.
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Crowley Burlon C.
Tetenbaum Marvin T.
Cockeram Herbert S.
NL Industries Inc.
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