Highly dense thermoplastic molding compositions

A thermoplastic resin composition consisting essentially of:

• A. from about 70 to about 25 parts by weight of a resinous composition consisting essentially of a combination of:
• (a)(i) a polyester resin derived from a cyclohexanedimethanol and a hexacarbocyclic dicarboxylic acid having an intrinsic viscosity of at least about 0.4 deciliters/gram as measured in a 60:40 phenol tetrachloroethane mixture at 30.degree. C., and, optionally,
• (a)(ii) a polyester resin having an intrinsic viscosity of at least about 0.4 deciliters/gram as measured in a 60:40 phenol tetrachloroethane mixture at 30.degree. C. which is not the same as (a)(i);
• and, optionally,
• (b) an impact modifying amount of a thermoplastic elastomeric impact modifier comprising a copolyether ester resin, a copolyetherimide ester resin or a mixture thereof and, correspondingly,
• B. from 30 to 75 parts by weight of zirconium oxide.

A thermoplastic resin composition consisting essentially of:

• A. from about 70 to about 25 parts by weight of a resinous composition consisting essentially of a combination of:
• (a)(i) a polyester resin derived from a cyclohexanedimethanol and a hexacarbocyclic dicarboxylic acid having an intrinsic viscosity of at least about 0.4 deciliters/gram as measured in a 60:40 phenol tetrachloroethane mixture at 30.degree. C., and, optionally,
• (a)(ii) a polyester resin having an intrinsic viscosity of at least about 0.4 deciliters/gram as measured in a 60:40 phenol tetrachloroethane mixture at 30.degree. C. which is not the same as (a)(i);
• and, optionally,
• (b) an impact modifying amount of a thermoplastic elastomeric impact modifier comprising a copolyether ester resin, a copolyetherimide ester resin or a mixture thereof and, correspondingly,
• B. from 30 to 75 parts by weight of zirconium silicate.

A thermoplastic resin composition comprising:

• A. from about 70 to about 15 parts by weight of a resinous composition comprising:
• (a)(i) a polyester resin derived from a cyclohexanedimethanol and a hexacarbocyclic dicarboxylic acid having an intrinsic viscosity of at least about 0.4 deciliters/gram as measured in a 60:40 phenol tetrachloroethane mixture at 30.degree. C.;
• (a)(ii) a polyester resin having an intrinsic viscosity of at least about 0.4 deciliters/gram as measured in a 60:40 phenol tetrachlorethane mixture at 30.degree. C. which is not the same as (a)(i);
• and
• (b) an impact modifying amount of a thermoplastic elastomeric impact modifier comprising a copolyether ester resin, a copolyetherimide ester resin or a mixture thereof;
• and, correspondingly,
• B. from about 30 to about 85 parts by weight of a filler selected from the group consisting of zinc oxide, barium sulfate, zirconium oxide, zirconium silicate, strontium sulfate and mixtures of such fillers.