Abstract:
An anionically-stabilized aqueous emulsion composition includes a) a first emulsion polymer having a Tg from -60°C to 40°C; b) a volatile base; and c) polymeric particles, different from the first emulsion polymer and present in emulsified form. The c) polymeric particles are polyamine graft copolymers, in which vinyl monomers form a polymer grafted to a water-soluble amino- group containing polymer. The anionically-stabilized aqueous emulsion composition may have a pH of from 8 to 11.
Abstract:
Waterborne vinyl acetate-acrylic, "vinyl acrylic" emulsion copolymers which can be used in architectural coatings and impart stain resistance to such coatings are provided. The vinyl acrylic emulsion copolymer particles in the emulsion may contain one or more particle size modes, each with a respective narrow particle size distribution. The vinyl acrylic emulsion copolymers contain as a comonomer an ethylenically unsaturated monomer and also contain a hydrolyzable silane comonomer. The hydrolyzable silane may be present as a comonomer in the vinyl acrylic copolymer and/or may be added to the vinyl acrylic emulsion copolymer emulsion in the form of a hydrolyzable silane that may have a reactive group that is capable of reacting with the vinyl acrylic copolymer.
Abstract:
A water soluble polymer or polymeric adduct has a backbone comprising a plurality of segments with amine functional groups and hydroxyl functional groups with a number average molecular weight in the range of about 500 to about 1,000,000 Daltons. The polymeric adduct may be formed as an addition product by reacting at least one multifunctional amine compound reacted with a one or more polyfunctional epoxy compounds and/or one or more monofunctional epoxy compounds, such that there are 1.3 to 3.8 reactive amine functional groups per reactive epoxy functional group. An aqueous solution of the polymer or polymeric adduct has a viscosity in the range of about 100 centipoise to about 100,000 centipoise and a pH value of about 8 to about 12 when the solution comprises 70 wt.% of the polymer or polymeric adduct dissolved in water. The polymeric adducts are useful fast setting additives for an emulsion product due to excellent stability when blended with an anionically stabilized latex.
Abstract:
A latex product composition that includes an anionically-stabilized latex and one or more water soluble, polymers or polymeric adducts that have a backbone with a plurality of amine functional groups and hydroxyl functional groups. The polymers or polymeric adducts may be an addition product formed from at least one multifunctional amine compound reacted with one or more polyfunctional epoxy compounds, one or more monofunctional epoxy compounds, or a combination thereof. The amine compound and the one or more epoxy compounds are reacted to form polymers or polymeric adducts with the molar equivalent ratio of 1.3 to 3.8 amine functional group per epoxy functional group. The addition product may be present in about 0.1 to 15.0 wt. % and the at least one volatile base compound is present in about 1.0 wt. % to 10.0 wt. % based on the weight of the particles present in the anionically-stabilized latex.