Abstract: A composition of matter comprising: A) from 25 to 90 parts by weight of a syndiotactic, vinylaromatic polymer, B) from 5 to 30 parts by weight of an oil extended, elastomeric polyolefin; C) from 1 to 10 parts by weight of a compatibilizer comprising a styrene containing block copolymer or a hydrogenated derivative thereof; D) from 0 to 25 parts by weight of a domain forming rubbery polymer comprising a styrene/conjugated diene triblock copolymer or a hydrogenated derivative thereof; E) from 0 to 5 parts by weight of a nucleator for the syndiotactic, vinylaromatic thermoplastic resin, F) from 0 to 60 parts by weight of a reinforcing agent, and G) from 0 to 90 parts by weight of a polyarylene ether or polar group modified polyarylene ether.

Abstract: Melt processible thermoplastic compositions and method for making them are described, these compositions comprising a thermoplastic polymer resin matrix selected from the group consisting of thermoplastic polyurethanes, polyvinyl chlorides, styrenics, engineering thermoplastics, and polyolefins, at least about 25 percent (by weight based on the total composition) of an elastomeric impact modifier dispersed as discrete particles in the thermoplastic matrix (a); and at least about 10 percent (by weight based on the total composition) of at least one homogeneous linear or substantially linear ethylene polymer dispersed as discrete particles in at least the impact modifier (b), the ethylene polymer having a molecular weight distribution less than 3.5 and a density of at least 0.04 g/cm.sup.3 higher than the density of the impact modifier component (b), wherein the elastic modulus of the thermoplastic component (a) is at least 200 times greater than the elastic modulus of the impact modifier component (b).

Abstract: Melt processible thermoplastic compositions and method for making them are described, these compositions comprising a) a polypropylene matrix, b) at least about 25 percent (by weight based on the total composition) of an elastomeric impact modifier dispersed as discrete particles in the polypropylene matrix (a); and c) at least about 10 percent (by weight based on the total composition) of at least one homogeneous linear or substantially linear ethylene polymer dispersed as discrete particles in at least the impact modifier (b), the ethylene polymer having a molecular weight distribution less than 3.5 and a density of at least 0.04 g/cm.sup.3 higher than the density of the impact modifier component (b), wherein the elastic modulus of the polypropylene (a) is at least 200 times greater than the elastic modulus of the impact modifier component (b).These thermoplastic compositions have improved processability. Processes for fabricating articles from them are described.