Polymerzusammensetzungen und Verfahren zur Darstellung.

摘要

Release of an active ingredient can be controlled, and the active ingredient can be protected from the environment during storage, by distributing it throughout a matrix containing a relatively large amount of polymeric material that is soluble and swellable in aqueous alkali but less soluble and swellable at a lower pH value and which is in the form of a dried oil-in-water emulsion of the polymer or a relatively insoluble partial salt of the polymer with a volatile amine, the full salt of the polymer being relatively soluble. The composition is of particular value for the protection of detergent enzymes