Copolymers of vinyl, in primary forms (excl. vinyl chloridevinyl acetate copolymers and other vinyl chloride copolymers, and vinyl acetate copolymers)
Polymers of vinyl esters and other vinyl polymers, in primary forms (excl. those of vinyl chloride or other halogenated olefins, poly"vinyl acetate", vinyl acetate copolymers and poly"vinyl alcohol", whether or not containing unhydrolised acetate groups)