Aqueous polymer dispersions and products from those dispersions
View Patent ↗A method for forming a heat sealable coating on a substrate, wherein the substrate is formed from at least one oriented polymer is shown. The method includes depositing an aqueous polymer dispersion on the substrate, wherein the aqueous polymer dispersion includes (A) at least one thermoplastic resin; (B) at least one dispersing agent; and (C) water; wherein the dispersion has a pH of less than 12, and drying the dispersion to form a first layer.
1. An aqueous dispersion comprising: (A) at least one thermoplastic resin, wherein the thermoplastic resin comprises an interpolymer of ethylene with at least one comonomer selected from the group consisting of a C 4 -C 20 linear, branched or cyclic dime, vinyl acetate, and a compound represented by the formula H 2 C═CHR wherein R is a C 2 -C 20 linear, branched or cyclic alkyl group or a C 6 -C 20 aryl group; (B) at least one dispersing agent; and (C) water; wherein the dispersion had a pH in the range of 8 to 11.
2. The aqueous dispersion of claim 1 wherein the thermoplastic resin has a density between 0.85 and 0.90 g/cc.