CRYSTALLINE CONTROLLED COMPOSITION INTERPOLYMERS OF VINYLIDENE CHLORIDE AND METHYL METHACRYLATE

摘要

Crystallizeole, controlled composition interpolymers consisting essentially of (a) from 88 to 92 mole percent vinylidene chloride, (b) from 8 to 12 mole percent methyl methacrylate, and (c) up to 3 weight percent, based on the combined weight of (a) and (b), of one or more ethylenically unsaturated comonomers; such interpolymers having a relative viscosity of at least 1.40 at 25.degree.C as a 1 percent solution in tetrahydrofuran and being capable of forming substantially haze-free solutions when present in an amount of 20 percent solids in a solvent mixture consisting of 65 percent by weight tetrahydrofuran and 35 percent by weight toluene,