Aqueous polymeric composition containing polymeric nanoparticles and treatments prepared therefrom

An aqueous polymeric composition comprising:

• (a) polymeric nanoparticles, dispersed in an aqueous medium, said polymeric nanoparticles comprising, as polymerized units:
• i) at least one multiethylenically unsaturated monomer, and
• ii) at least one water soluble monomer,
• said polymeric nanoparticles having a mean diameter in the range of from 1 to 10 nanometers and a glass transition temperature of at least 50° C.;
• and
• (b) second particles dispersed in said aqueous medium, said second particles being selected from the group consisting of second polymer particles and mixtures of second polymer particles and pigment particles;
• said second polymer particles having a glass transition temperature in the range of from −40° C. to 70° C.;
• wherein a weight ratio of said polymeric nanoparticles to said second polymer particles is in the range of from 1:99 to 1:1.

An aqueous polymeric composition comprising:

• (a) polymeric nanoparticles, dispersed in an aqueous medium, said polymeric nanoparticles comprising, as polymerized units:
• i) at least one multiethylenically unsaturated monomer, and
• ii) at least one water soluble monomer,
• said polymeric nanoparticles having a mean diameter in the range of from 1 to 10 nanometers;
• and
• (b) second particles dispersed in said aqueous medium, said second particles being selected from the group consisting of second polymer particles, pigment particles and mixtures thereof, said second polymer particles having a glass transition temperature of at least 50° C.;
• wherein a total volume concentration of said pigment particles and said second polymer particles is at least 70%, based on total solids volume of said aqueous polymeric composition.

A method for providing a coating, comprising the steps of:

• a) applying onto a substrate, an aqueous polymeric composition comprising polymeric nanoparticles, said polymeric nanoparticles comprising as polymerized units:
• i) at least one multiethylenically unsaturated monomer and
• ii) at least one water soluble monomer,
• wherein said polymeric nanoparticles have a mean diameter in the range of from 1 to 50 nanometers;
• and
• b) drying or allowing to dry said aqueous polymeric composition applied to said substrate to provide said coating.

A method for treating a porous substrate, comprising the steps of:

• a) applying onto said porous substrate, an aqueous polymeric composition comprising polymeric nanoparticles, said polymeric nanoparticles comprising as polymerized units:
• i) at least one multiethylenically unsaturated monomer, and
• ii) at least one water soluble monomer,
• wherein said polymeric nanoparticles have a mean diameter in the range of from 1 to 50 nanometers;
• b) allowing said aqueous polymeric composition to penetrate into said porous substrate;
• and
• c) drying or allowing to dry said aqueous polymeric composition applied to said porous substrate to provide a treated porous substrate.