Thermoplastic molding composition

Claim 2

A thermoplastic molding composition which consists essentially of: (i) from about 40 to about 95 parts by weight of a polycarbonate resin; and (ii) a polyester consisting of (a) from about 5 to about 60 parts by weight of poly(1,4-butylene terephthalate) and (b) from about 1 to about 60 parts by weight, based on the combined weight of (i) and (a), of a copolyester of an aliphatic diol containing 2 to 18 carbon atoms or cycloaliphatic diol containing 6 to 18 carbon atoms and a mixture of terephthalic and isophthalic acids.

Claim 3

A thermoplastic molding composition as defined in claim 1 wherein the polycarbonate has recurring units of the formula: ##STR5## wherein each --R-- is selected from the group consisting of phenylene, halo-substituted phenylene and alkyl substituted phenylene, and X and Y are each selected from the group consisting of hydrogen, hydrocarbon radicals free from aliphatic unsaturation and of radicals which together and with the adjoining ##STR6## atom form a cycloalkane radical, the total number of carbon atoms in X and Y being up to 12.

Claim 4

A thermoplastic molding composition as defined in claim 2 wherein the polycarbonate has the repeating unit ##STR7##

Claim 5

A thermoplastic molding composition as defined in claim 1 wherein the copolyester is of a 1,4-cyclohexane dimethanol and a mixture of terephthalic acid and isophthalic acid.

Claim 6

A thermoplastic molding composition as defined in claim 1 wherein the copolyester is of 1,4-butanediol and a mixture of terephthalic acid and isophthalic acid.

Claim 7

A reinforced thermoplastic molding composition which consists essentially of: (i) from about 40 to about 95 parts by weight of a polycarbonate resin; (ii) a polyester consisting of (a) from about 5 to about 60 parts by weight of poly(1,4-butylene terephthalate) and (b) from about 1 to 60 parts by weight, based on the combined weight of (i) and (a) of a copolyester of an aliphatic diol containing 2 to 18 carbon atoms or cycloaliphatic diol containing 6 to 18 carbon atoms or cycloaliphatic diol containing 6 to 18 carbon atoms and a mixture of terephthalic and isophthalic acids; and (iii) from about 1 to about 60 parts by weight, based on the combined weight of (i), (a) and (b), of a reinforcing filler.

Claim 8

A reinforced thermoplastic molding composition which consists essentially of: (i) from about 40 to about 95 parts by weight of a polycarbonate resin; (ii) a polyester consisting of (a) from about 5 to about 60 parts by weight of poly(1,4-butylene terephthalate) and (b) from about 1 to 60 parts by weight, based on the combined weight of (i) and (a) of a copolyester of an aliphatic diol containing 2 to 18 carbon atoms or cycloaliphatic diol containing 6 to 18 carbon atoms or cycloaliphatic diol containing 6 to 18 carbon atoms and a mixture of terephthalic and isophthalic acids; and (iii) from about 1 to about 60 parts by weight, based on the combined weight of (i), (a) and (b), of a reinforcing filler.

Claim 9

A reinforced thermoplastic molding composition as defined in claim 6 wherein the polycarbonate has recurring units of the formula: ##STR8## wherein each --R-- is selected from the group consisting of phenylene, halo-substituted phenylene and alkyl substituted phenylene and X and Y are each selected from the group consisting of hydrogen, hydrocarbon radicals free from aliphatic unsaturation and of radicals which together with the adjoining ##STR9## atom from a cycloalkane radical, the total number of carbon atoms in X and Y being up to 12.

Claim 10

A reinforced thermoplastic molding composition as defined in claim 7 wherein the polycarbonate has the repeating unit ##STR10##

Claim 11

A reinforced thermoplastic molding composition as defined in claim 1 wherein the copolyester is of a 1,4-cyclohexane dimethanol and a mixture of terephthalic acid and isophthalic acid.

Claim 12

A reinforced thermoplastic molding composition as defined in claim 1 wherein the copolyester is of 1,4-butanediol and a mixture of terephthalic acid and isophthalic acid.

Claim 13

A reinforced thermoplastic molding composition as defined in claim 10 wherein the reinforcing filler is glass fiber.

Claim 14

A reinforced thermoplastic molding composition as defined in claim 10 wherein the reinforcing filler is glass and mica.

Claim 15

A reinforced thermoplastic molding composition as defined in claim 10 wherein the reinforcing filler is glass and talc.