Patent ID: 6329450
Filing Date: 2001-12-11
Classification: C08L

Abstract:
A blend of polymeric materials comprising(A) of from about 1 to about 80 percent by weight (based on the combined weights of Components A and B) of at least one substantially random interpolymer; wherein said interpolymer;(1) contains of from about 0.5 to about 50 mole percent of polymer units derived from;(a) at least one vinyl or vinylidene aromatic monomer, or(b) at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer, or(c) a combination of at least one vinyl or vinylidene aromatic monomer and at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer;(2) contains of from about 50 to about 99.5 mole percent of polymer units derived from at least one aliphatic .alpha.-olefin having from 2 to 20 carbon atoms;(3) has a melt index (I.sub.2) of from about 0.01 to about 100 g/10 min; and(4) has a molecular weight distribution (M.sub.w /M.sub.n) of from about 1.5 to about 20;(B) of from about 20 to about 99 weight percent based on the combined weights of Components A, and B of one or more engineering thermoplastics(C) of from about 15 to about 30 percent by weight (based on the combined weights of Components A, B, C, and D) of one or more polyolefin elastomers wherein said polyolefin elastomer;(1) has a melt index (I.sub.2) of from about 0.01 to about 100 g/10 min; and(2) has a density of from about 0.860 to about 0.900 g/cm.sup.3 ; and(D) of from about 0.5 to about 20 percent by weight (based on the combined weights of Components A, B, C, and D) of one or more functional polyolefins.