detergent such film produces pouches having a greater storage shelf life over prior art water soluble film application_number US 36615006 A description while the invention is susceptible of embodiment in many different forms this disclosure will describe in detail preferred embodiments of the invention with the understanding that the present disclosure is to be considered as an exemplification of the principles of the invention and is not intended to limit the broad aspect of the invention to the embodiments illustrated in the present invention specific monomers within three general chemical classes are selected for copolymerization with vinyl acetate such that the base catalyzed alcoholysis products of these copolymers which are used in the formulation of the water soluble film retain excellent solubility performance in the presence of hydrogen ions the copolymers used in the formulation of the water soluble films have one of either 1 carboxylate functionality or 2 sulfonate functionality specific monocarboxylic acid vinyl monomers for example structure a shown below and their esters and anhydrides and specific dicarboxylic monomers for example structure b shown below having a polymerizable double bond and their esters and anhydrides are selected for copolymerization with vinyl acetate the base catalyzed alcoholysis products of these copolymers which are used in the formulation of the water soluble film retain carboxylate functionality in the presence of hydrogen ions because of the.