EASILY MACHINED POLYMER COMPOSITIONS BASED ON LINEAR LOW DENSITY POLYETHYLENE (LLDPE)

摘要

The compositions consist of: (A) copolymer of ethylene with-olefin CH2=CHR from 75 to 95 wt.%, where R is alkyl radicalcontaining from 1 to 10 carbon atoms, and (B) is copolymer ofpropylene with ethylene and at least one -olefin CH2=CHR1 from 5to 25 wt.%, where R1 is alkyl radical containing 2 to 10 carbonatoms. Copolymer (B) is insoluble in xylene when the solubility isbigger than 70%. The polymer compositions have better machiningand improved mechanical qualities in comparison with the standardtype linear low density polyethylene.18 claims