Aqueous dispersions of nanoparticle/polyurethane composites

Details Aqueous dispersions of nanoparticle/polyurethane composites Aqueous dispersions of nanoparticle/polyurethane composites

2006-01-24

2009-10-06

Eashoo, Mark (Department: 1796)

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...

C524S591000, C524S492000, C524S493000, C524S430000, C524S432000, C524S445000, C977S773000

Reexamination Certificate

active

07598315

ABSTRACT:
An aqueous dispersion of nanoparticle/polyurethane composites is made by forming a mixture of nanoparticles and a continuous mass of a polyurethane prepolymer in the substantial absence of water and dispersing the mixture so made in aqueous medium. Alternatively, a polyurethane prepolymer or a mixture of nanoparticles and a continuous mass of a polyurethane prepolymer is dispersed into an aqueous dispersion of nanoparticles.

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