Water-dispersible blocked isocyanate composition, and water-base

Details Water-dispersible blocked isocyanate composition, and water-base Water-dispersible blocked isocyanate composition, and water-base

1999-08-13

2000-06-27

Niland, Patrick D.

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...

524589, 524590, 524839, 524840, 528 45, C08J 300, C08K 320, C08L 7500, C08G 1881

Patent

active

060808128

ABSTRACT:
A water-dispersible blocked isocyanate composition, including an isocyanate group-terminated precursor and a blocking agent for blocking a free isocyanate group of the precursor, wherein the precursor includes at least an organic diisocyanate, a low-molecular glycol, and a hydrophilic surfactant having at least one active hydrogen group. The precursor also has an isocyanurate ring structure; an average functional group number (f) satisfying 2.0.ltoreq.f.ltoreq.4.2; a low-molecular glycol content (X) satisfying 0.5 wt. %.ltoreq..times..ltoreq.15 wt. %; and a hydrophilic surfactant content(Y) satisfying 0.1 wt. %.ltoreq.Y.ltoreq.50 wt. %.

REFERENCES:
patent: 4663377 (1987-05-01), Hombach et al.
patent: 5300556 (1994-04-01), Tirpak et al.
patent: 5373050 (1994-12-01), Morikawa et al.
patent: 5652300 (1997-07-01), Morikawa et al.
patent: 5723536 (1998-03-01), Baumbach et al.

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