Thermoplastic polyester molding compositions

Claim 1

Polyester molding composition selected from (a) polymers wherein at least about 97% by weight of the polymer contains the repeating ethylene terephthalate units of the formula: ##STR78## with the remainder being minor amounts of ester-forming components, and (b) copolymers of ethylene terephthalate wherein up to about 30 mole percent of the glycol is selected from one or more of diethylene glycol; propane-1,3-diol; butane-1,4-diol; polytetramethylene glycol; polyethylene glycol; polypropylene glycol and 1,4-hydroxymethylcyclohexane; and up to about 30 mole percent of the acid is selected from one or more of isophthalic; bibenzoic; naphthalene 1,4- or 2,6-dicarboxylic, adipic; sebacic; and decane-1,10-dicarboxylic acid, and (c) said polymers containing a coloring amount of the copolymerized residue of one or more compounds of the formula ##STR79## wherein R is --OH, --COOR 1 or --COX wherein R 1 is --H or lower alkyl, X is halogen, n is 1 or 2, either A or B of II must contain, and A or B of I may contain, at least one additional ##STR80## group, each of rings A and B may be further substituted with 1-3 radicals selected from lower alkyl which may be substituted with lower alkoxy, phenyl, Cl, Br, and lower alkanoylamino; lower alkoxy which may be substituted with lower alkoxy, phenyl, Cl, Br, and lower alkanoylamino; chlorine; bromine; amino; lower alkyl amino which may be substituted with lower alkoxy, cyclohexyl, phenyl, Cl, Br, and lower alkanoylamino; aryl amino; arylthio, and aroylamino; wherein each aryl is 6-10 carbons; lower alkylsulfonyl; lower alkylthio; lower alkanoylamino; and cyclohexylamino; wherein said polymers are admixed with from about 1 to about 300 ppm of iron oxide.