POLYMER COMPOSITION Russian patent published in 1995 - IPC

FIELD: polymer compositions based on nonplasticized polyvinylchloride used for manufacture of shaped-linear products. SUBSTANCE: to increase elasticity (specimen resistance to repeated flexure up to their failure) polymer composition contains, mas. p. polyvinylchloride 100; thermal stabilizer 0.8-6; suspension polymer of vinyl chloride with bulk density of 0.2-0.35 g/cu. cm and Fikentcher constant of 80-110; 6-15; copolymer 6-10 including, mas. butyl acrylate 59.4-63.4; methyl methacrylate 35.6-40; alkyl methacrylate 0.6-1 or chlorinated polyethylene 6-20 with chlorine content of 36-42 mas. Repeated flexural resistance of specimen up to failure is 276-334. EFFECT: higher efficiency. 1 tbl