Patent ID: 6020416
Filing Date: 2000-02-01
Classification: C08J,C08L,C09D

Abstract:
An aqueous dispersion comprising a blend of polymer components each in the form of colloidal particles having average hydrodynamic radii less than 500 nm, said polymer components comprising:a first polymer component comprising 20% to 50% by volume of the total polymeric content and exhibiting a measured T.sub.g (I) of greater than or equal to 49.degree. C.;a second polymer component comprising 45% to 80% by volume of the total polymeric content and exhibiting a measured T.sub.g (II) less than 49.degree. C. and greater than 24.degree. C.; anda third polymer component comprising 0% to 35% by volume of the total polymeric content and exhibiting a measured T.sub.g (III) less than 24.degree. C.;wherein each of said first, second, and third polymer components has a M.sub.w greater than 80,000 Daltons and are mutually adherent; and wherein the aqueous dispersion has a volatile organic content of less than 20% by weight of the total polymeric content.