Fine polyurethane particles, colloidal polyurea particles, and p

Details Fine polyurethane particles, colloidal polyurea particles, and p Fine polyurethane particles, colloidal polyurea particles, and p

1994-09-27

1996-11-05

Seidleck, James J.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

428407, 4284231, 4284233, 4284242, 524589, 524590, 524839, 524904, 525458, 525902, 528 49, 528 53, 528 59, 528 61, 528 67, 528 68, 528 75, 528902, 521137, B32B 516, B32B 2708, B32B 2740

Patent

active

055716237

ABSTRACT:
Fine polyurethane particles or fine polyurethane gel particles, which have been surface-covered with colloidal polyurea particles, are provided. They are produced by emulsion polymerization of a polyisocyanate compound and an active-hydrogen-containing compound in an inert liquid while using colloidal polyurea particles as an emulsifier.

REFERENCES:
patent: 4746684 (1988-05-01), Kuriyama et al.
patent: 4764553 (1988-08-01), Mosbach et al.

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