C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/08 (2006.01) C08G 18/10 (2006.01) C08G 18/12 (2006.01) C08G 18/32 (2006.01) C08G 18/48 (2006.01) C08G 18/80 (2006.01) C09D 175/04 (2006.01)
Patent
CA 2423057
A polyurethane material, the coatings prepared therefrom, and methods of making the same are provided. An anionic self-crosslinkable polyurethane material has a weight average molecular weight of less than 15,000 grams per mole and, when cured, has a toughness of at least 20 MPa according to TOUGHNESS TEST METHOD at a temperature of 25 ~C.
L'invention concerne une matière à base de polyuréthane, les revêtements préparés à partir desdits polyuréthanes et des procédés de production de ces éléments. Une matière à base de polyuréthane anionique auto-réticulable présente un poids moléculaire moyen pondéré inférieur à 15.000 grammes par mole et, à l'état polymérisé, une dureté d'au moins 20 Mpa calculée selon la méthode d'essai de résilience, à une température de 25 ·C.
Lamers Paul H.
Martz Jonathan T.
Meyers Lawrence D.
Novak Carolyn A.
Olson Kurt G.
Borden Ladner Gervais Llp
Ppg Industries Ohio Inc.
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