Composition of polyarylate, polyamide, polyethylene terephthalate and epoxy resin

Abstract

Thermoplastic resin compositions comprising polyarylate and polyamide resins as main components, polyethylene terephthalate and an epoxy resin of the following formula [1] in a predetermined amount are provided. ##STR1## The thermoplastic resin compositions of the invention have good impact strength along with good heat and solvent resistances and good moldability.

What is claimed is: 
     
       1. A thermoplastic resin composition which comprises 100 parts by weight of a resin composition which comprises 100 parts by weight of a resin mixture consisting essentially of not less than 10 wt % of a polyarylate resin, not less than 20 wt % of a polyamide resin and from 3 to 60 wt % of a polyethylene terephthalate resin, and from 0.1 to 15 parts by weight of an epoxy resin of the following formula [1] ##STR25## wherein X represents a direct bond, a lower alkylene group having from 1 to 4 carbon atoms, .Iadd.a lower alkylidene group having from 1 to 4 carbon atoms, .Iaddend. ##STR26## --SO 2  --, --O--, or --S-- wherein part or all of the hydrogen atoms of X may be substituted with a halogen atom if X represents any hydrocarbon defined above, R's independently represent a hydrogen atom, a halogen atom, a lower alkyl group having from 1 to 4 carbon atoms, and n is an integer of 1 to 20. 
     
     
       2. A thermoplastic resin composition according to claim 1, wherein, in the formula [1], n is from 6 to 20. 
     
     
       3. A thermoplastic resin composition according to claim 1, wherein the amount of said polyarylate resin is from 15 to 45 wt %, the amount of said polyamide resin is from 45 to 65 wt % and the amount of said polyethylene terephthalate resin is from 7 to 35 wt % and said epoxy resin is from 2 to 10 parts by weight per 100 parts by weight of the total of said polyarylate resin, said polyamide resin and said polyethylene terephthalate resin.