Polyesters containing particular phosphorus compounds blended with other polymers

A polymer blend comprising

• (A) a polyester composition comprising
• (I) at least one polyester (Polymer A) which comprises:
• (a) a dicarboxylic acid component comprising:
• (i) 70 to 100 mole % of terephthalic acid residues;
• (ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms;
• and
• (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms;
• and
• (b) a glycol component comprising:
• (i) about 10 to about 90 mole % of ethylene glycol residues;
• and
• (ii) about 90 to about 10 mole % of cyclohexanedimethanol residues:
• (II) residues of at least one titanium compound;
• and
• (III) at least one chelating phosphorus species, reaction products thereof, or mixtures thereof, represented by the structure:
• wherein:
• n=an integer from 1 to 4;
• R is C1-C22-alkyl;
• and
• R1 and R2 are each hydrogen, C1-C22-alkyl, hydroxyl, or aryl;
• wherein the total mole % of the dicarboxylic acid component is 100 mole %,
• wherein the total mole % of the glycol component is 100 mole %;
• and
• wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25° C.;
• and
• (B) at least one polycarbonate (Polymer B).

A polymer blend comprising

• (A) a polyester composition comprising
• (I) at least one polyester (Polymer A) which comprises:
• (a) a dicarboxylic acid component comprising:
• (i) 70 to 100 mole % of terephthalic acid residues;
• (ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms;
• and
• (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms;
• and
• (b) a glycol component comprising:
• (i) about 10 to about 90 mole % of ethylene glycol residues;
• and
• (ii) about 90 to about 10 mole % of cyclohexanedimethanol residues;
• (II) residues of at least one titanium compound;
• and
• (III) at least one chelating phosphorus species, reaction products thereof, or mixtures thereof, represented by the structure:
• wherein:
• n=a 2;
• R is hydrogen;
• and
• R1 and R2 are each hydrogen;
• wherein the total mole % of the dicarboxylic acid component is 100 mole %,
• wherein the total mole % of the glycol component is 100 mole %;
• and
• wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25° C.;
• and
• (B) at least one polycarbonate (Polymer B).

A polymer blend comprising

• (A) a polyester composition comprising
• (I) at least one polyester (Polymer A) which comprises:
• (a) a dicarboxylic acid component comprising:
• (i) 70 to 100 mole % of terephthalic acid residues:
• (ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms;
• and
• (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms;
• and
• (b) a glycol component comprising:
• (i) about 10 to about 90 mole % of ethylene glycol residues;
• and
• (ii) about 90 to about 10 mole % of cyclohexanedimethanol residues;
• (II) residues of at least one titanium compound;
• and
• (III) at least one chelating phosphorus species, reaction products thereof, or mixtures thereof, represented by the structure:
• wherein:
• n=an integer from 1 to 4;
• R is hydrogen or C1-C22-alkyl;
• and
• R1 and R2 are each hydrogen, C1-C22-alkyl, hydroxyl, or aryl;
• wherein the total mole % of the dicarboxylic acid component is 100 mole %,
• wherein the total mole % of the glycol component is 100 mole %;
• and
• wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25° C.;
• and
• (B) at least one polycarbonate (Polymer B),
• wherein said polyester (Polymer A) has a phosphorus atom to titanium atom ratio in the final product of 2:1.

A polymer blend comprising

• (A) a polyester composition comprising:
• (I) at least one polyester (Polymer A) which comprises:
• (a) a dicarboxylic acid component comprising:
• (i) 70 to 100 mole % of terephthalic acid residues;
• (ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms;
• and
• (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms;
• and
• (b) a glycol component comprising:
• (i) about 10 to about 90 mole % of ethylene glycol residues;
• and
• (ii) about 90 to about 10 mole % of cyclohexanedimethanol residues;
• (II) residues of at least one titanium compound;
• and
• (III) at least one chelating phosphorus species, reaction products thereof, or mixtures thereof, represented by the structure:
• wherein:
• n=an integer from 1 to 4;
• R is hydrogen or C1-C22-alkyl;
• and
• R1 and R2 are each hydrogen, C1-C22-alkyl, hydroxyl, or aryl;
• wherein the total mole % of the dicarboxylic acid component is 100 mole %,
• wherein the total mole % of the glycol component is 100 mole %;
• and
• wherein the inherent viscosity of the polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25° C.;
• and
• (B) at least one bisphenol A polycarbonate (Polymer B),
• wherein said polyester (Polymer A) has a phosphorus atom to titanium atom ratio in the final product of from 1:1 to 5:1.