Polyurethane dispersions

Details Polyurethane dispersions Polyurethane dispersions

C - Chemistry, Metallurgy

08

K

C08K 5/103 (2006.01) C08G 18/08 (2006.01) C08G 18/34 (2006.01) C08G 18/68 (2006.01) C08K 5/101 (2006.01) C09D 175/16 (2006.01)

Patent

CA 2342296

The present invention relates to radiation curable aqueous polyurethane dispersions containing 0.05 to 20 wt.%, based on the weight of the non-aqueous constituents of the aqueous polyurethane dispersions, of 2,2-dimethyl-3-hydroxypropionic acid-(2,2-dimethyl-3-hydroxypropyl ester), (HPSNPG, calculated as MW 204.3). The invention also relates to substrates coated with these polyurethane dispersions, in particular to coated wood substrates with good grain enhancing properties.

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