Containers comprising polyester compositions which comprise cyclobutanediol

摘要

Articles, including water bottle(s) having a weight from 200 to 800 grams comprising a polyester composition comprising at least one polyester which comprises: (a) a dicarboxylic acid component comprising terephthalic acid residues; optionally, aromatic dicarboxylic acid or aliphatic dicarboxylic acid residues; and (b) a glycol component comprising 30 to 40 mole % of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; and 60 to 70 mole % of 1,4-cyclohexanedimethanol residues; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole and the inherent viscosity of the polyester is from 0.50 to 0.68 dl/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.5 g/100 ml at 25° C.; and wherein the polyester has a Tg of from 100 to 140° C.; and wherein the polyester composition contains no polycarbonate.

主权项

1. A water bottle having a weight from 200 to 800 grams comprising at least one polyester composition comprising at least one polyester 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; andiii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and (b) a glycol component comprising:
i) 30 to 40 mole % of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; andii) 60 to 70 mole % of 1,4-cyclohexanedimethanol residues,wherein the total mole % of said dicarboxylic acid component is 100 mole %, and the total mole % of said glycol component is 100 mole %;wherein the inherent viscosity of said polyester is from 0.50 to 0.68 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.5 g/100 ml at 25° C.;and wherein said polyester has a Tg of from 100 to 140° C.;wherein said polyester has a notched Izod impact strength of at least 7.5 ft-lb/inch at 23° C. according to ASTM D256 with a 10-mil notch in a ⅛-inch thick bar;wherein the melt viscosity of said polyester is less than 10,000 poise as measured at 1 radian/second on a rotary melt rheometer at 290° C.; andwherein said polyester composition contains no polycarbonate.