cold water - soluble pvoh / alkyl acrylate copolymers are provided with a substantially random distribution of monomers which is reflected in the polymer &# 39 ; s cold water solubility , gpec chromatograms and may be confirmed by c 13 nmr . the product is particularly useful for films used in packaging and for encapsulating particulate products . encapsulated products which may be provided include fertilizer or other agricultural products , pharmaceutical products , biomedical products and cosmetic products .