Aromatic copolyester composition

Claim 2

A resin composition consisting essentially of: (A) an aromatic copolyester derived from (a) a mixture of terephthalic acid and/or its functional derivative and isophthalic acid and/or its functional derivative, with the terephthalic acid unit/isophthalic acid unit mole ratio being about 9:1 to about 1:9, and (b) 2,2-bis(4-hydroxyphenyl)propane, or its functional derivative, and (B) a phosphite compound of the general formula ##STR16## wherein R 5 and R 6 , independently from each other, represent a hydrogen atom, an alkyl group having 1 to 22 carbon atoms, an aryl group having 6 to 16 carbon atoms, a cycloalkyl group having 6 to 12 carbon atoms, an arylalkyl group having 7 to 38 carbon atoms, an alkylaryl group having 7 to 38 carbon atoms a polyhydric phenol residue having 7 to 38 carbon atoms and 1 to 2 hydroxyl groups remaining, or a polyhydric alcohol residue having 2 to 22 carbon atoms and 1 to 2 hydroxyl groups remaining, or such residues where at least one of the hydroxyl groups is in the form of a phosphite ester.

Claim 3

The composition of claim 1 wherein the mole ratio of the terephthalic acid unit to the isophthalic acid unit is 7:3 to 3:7.

Claim 4

The composition of claim 1 wherein the mole ratio of the terephthalic acid unit to the isophthalic acid unit is 1:1.

Claim 5

The composition of claim 1 wherein the amount of the phosphite compound is about 0.01 to about 10% by weight based on the weight of the aromatic copolyester.

Claim 6

The composition of claim 4 wherein the amount of the phosphite compound is 0.01 to 5% by weight based on the weight of the aromatic copolyester.

Claim 7

The composition of claim 5 wherein the amount of the phosphite compound is 0.05 to 2.0% by weight based on the weight of the aromatic copolyester.

Claim 8

The composition of claim 1 wherein the phosphite compound is ##STR17##

Claim 9

The composition of claim 7 wherein the mole ratio of the terephthalic acid units to the isophthalic acid units is 1:1.

Claim 10

A resin composition consisting essentially of (A) an aromatic copolyester derived from (a) a mixture of terephthalic acid and/or its functional derivative and isophthalic acid and/or its functional derivative, with the terephthalic acid unit/isophthalic acid unit mole ratio being about 9:1 to about 1:9, and (b) 2,2-bis(4-hydroxyphenyl)propane, or its functional derivative, (B) a phosphite compound of the general formula ##STR18## wherein R 5 and R 6 , independently from each other, represent a hydrogen atom, an alkyl group having 1 to 22 carbon atoms, an aryl group having 6 to 16 carbon atoms, a cycloalkyl group having 6 to 12 carbon atoms, an arylalkyl group having 7 to 38 carbon atoms, an alkylaryl group having 7 to 38 carbon atoms, a polyhydric phenol residue having 7 to 38 carbon atoms and 1 to 2 hydroxyl groups remaining, or a polyhydric alcohol residue having 2 to 22 carbon atoms and 1 to 2 hydroxyl groups remaining, or such residues where at least one of the hydroxyl groups is in the form of a phosphite ester, and (C) a salt formed between an organic carboxylic acid containing 2 to 22 carbon atoms and a metal of Groups I, II, III and IV of the Periodic Table.

Claim 11

A resin composition consisting essentially of (A) an aromatic copolyester derived from (a) a mixture of terephthalic acid and/or its functional derivative and isophthalic acid and/or its functional derivative, with the terephthalic acid unit/isophthalic acid unit mole ratio being about 9:1 to about 1:9, and (b) 2,2-bis(4-hydroxyphenyl)propane, or its functional derivative, (B) a phosphite compound of the general formula ##STR18## wherein R 5 and R 6 , independently from each other, represent a hydrogen atom, an alkyl group having 1 to 22 carbon atoms, an aryl group having 6 to 16 carbon atoms, a cycloalkyl group having 6 to 12 carbon atoms, an arylalkyl group having 7 to 38 carbon atoms, an alkylaryl group having 7 to 38 carbon atoms, a polyhydric phenol residue having 7 to 38 carbon atoms and 1 to 2 hydroxyl groups remaining, or a polyhydric alcohol residue having 2 to 22 carbon atoms and 1 to 2 hydroxyl groups remaining, or such residues where at least one of the hydroxyl groups is in the form of a phosphite ester, and (C) a salt formed between an organic carboxylic acid containing 2 to 22 carbon atoms and a metal of Groups I, II, III and IV of the Periodic Table.

Claim 12

The composition of claim 9 wherein the mole ratio of the terephthalic acid units to the isophthalic acid units is 7:3 to 3:7.

Claim 13

The composition of claim 9 wherein the mole ratio of the terephthalic acid unit to the isophthalic acid unit is 1:1.

Claim 14

The composition of claim 9 wherein the amount of the phosphite compound is about 0.01 to about 10% by weight based on the weight of the aromatic copolyester.

Claim 15

The composition of claim 12 wherein the amount of the phosphite compound is 0.01 to 5% by weight of the aromatic copolyester.

Claim 16

The composition of claim 13 wherein the amount of the phosphite compound is 0.05 to 2.0% by weight based on the weight of the aromatic copolyester.

Claim 17

The composition of claim 9 wherein the amount of the organic carboxylic acid metal salt is about 0.01 to about 3.0% by weight based on the weight of the aromatic copolyester.

Claim 18

The composition of claim 15 wherein the amount of the organic carboxylic acid metal salt is 0.05 to 1.0% by weight based on the weight of the aromatic copolyester.

Claim 19

The composition of claim 9 wherein the amount of the phosphite compound is 0.05 to 2.0% by weight, and the amount of the organic carboxylic acid metal salt is 0.05 to 1.0% by weight, both based on the weight of the aromatic copolyester.

Claim 20

The composition of claim 9 wherein the phosphite compound is ##STR19##

Claim 21

The composition of claim 9 wherein the organic carboxylic acid is acetic acid.

Claim 22

The composition of claim 9 wherein the organic carboxylic acid is stearic acid.

Claim 23

The composition of claim 9 wherein the organic carboxylic acid is benzoic acid.

Claim 24

The composition of claim 18 wherein the mole ratio of the terephthalic acid units to the isophthalic acid units is 1:1, and the salt is calcium stearate.

Claim 25

The composition of claim 18 wherein the mole ratio of the terephthalic acid unit to the isophthalic acid unit is 1:1, and the salt is sodium acetate.

Claim 26

The composition of claim 9, wherein said metal is selected from the group consisting of sodium, potassium, lithium, magnesium, calcium, barium, zinc, cadmium, tin and lead.

Claim 27

A molded article produced from the composition of claim 1.

Claim 28

A molded article produced from the composition of claim 8.

Claim 29

A molded article produced from the composition of claim 9.

Claim 30

A molded article produced from the composition of claim 22.

Claim 31

A molded article produced from the composition of claim 23.