The polymer composition is used for packing products of the chemical, food
and other industries. The packing material obtained from the polymer
composition has a wide range of application and controllable
decomposition of the packages in water medium, ensuring environmental
cleanness and recycling of the material. The polymer composition for
packing materials contains polyvinylalcohol and water, and, according to
the invention, it also contains polyvinylacetate dispersion,
methylcellulose, carboxymethylcellulose and glucose in the following
proportions of the components in % by weight: polyvinylalcohol 32-84,
polyvinylacetate dispersion 10-57, methylcellulose 3.0-5.8,
carboxymethylcellulose 2.0-4.2, glucose 0.5-2.3, and water 0.5-6.0. The
method for producing packing materials from the polymer composition
includes the preparation of a dry mixture or viscous mass and moulding.
According to the invention, before or after the moulding the material is
treated successively with aqueous sodium tetraborate solution and aqueous
formaldehyde solution.
