Patent ID: 6100334
Filing Date: 2000-08-08
Classification: C08L

Abstract:
A thermoplastic vulcanizate comprising,a) a semicrystalline poly-.alpha.-olefin thermoplastic resin,b) a rubbery polymer comprising from about 62 to about 92 mole percent of repeat units from at least one .alpha.-olefin having from 2 to 6 carbon atoms; from about 8 to about 28 mole percent repeat units from at least one norbornene having the formula ##STR2## where R.sup.1 and R.sup.2 independently are a hydrogen or an alkyl of from 1 to 8 carbon atoms; and from about 0.1 to about 10 mole percent repeat units from a diene or a polyene having from 5 to 20 carbon atoms, andc) a polymeric compatibilizer for said semicrystalline poly (.alpha.-olefin) thermoplastic resin and said rubbery polymer, wherein said thermoplastic resin and said rubbery polymer are interspersed as a multiple phase blend and said compatibilizer reduces the weight average particle diameter of the dispersed phase to less than 25 microns.