HIGH FLOW, DUCTILE POLY(ALIPHATIC ESTER-CARBONATE) COMPOSITIONS
First Claim
1. A thermoplastic composition, comprising, based on a total weight of the composition:
- 15 to 90 weight percent of a first poly(aliphatic ester-carbonate) having a first weight average molecular weight;
10 to 85 weight percent of a second poly(aliphatic ester-carbonate) having a second weight average molecular weight that is lower than the first weight average molecular weight;
0.01 to 0.5 weight percent of a mold release agent;
0.01 to 0.5 weight percent of a thermal stabilizer; and
0.01 to 0.5 weight percent of a chain extender,wherein the foregoing amounts total 100 weight percent, and are based on the total weight of the thermoplastic composition, andwherein the thermoplastic composition hasan average melt volume flow rate of less than 40 cubic centimeters per 10 minutes when measured at 300°
C. at a shear load of 1.2 kg, dwell 300 seconds, in accordance with ASTM 1238, andan average melt volume flow rate of less than 40 cubic centimeters per 10 minutes when measured at 250°
C. at a shear load of 5.0 kg, dwell 300 seconds, in accordance with ASTM 1238.
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Accused Products
Abstract
A thermoplastic composition, comprising, based on the total weight of the composition: 15 to 90 weight percent of a first poly(aliphatic ester-carbonate) having a first weight average molecular weight; 10 to 85 weight percent of a second poly(aliphatic ester-carbonate) having a second weight average molecular weight that is lower than the first weight average molecular weight; 0.01 to 0.5 weight percent of a mold release agent; 0.01 to 0.5 weight percent of a thermal stabilizer; 0.01 to 0.5 weight percent of a chain extender; San average melt volume flow rate of less than 40 cubic centimeters per 10 minutes when measured at 300° C. at a shear load of 1.2 kg, and an average melt volume flow rate of less than 40 cubic centimeters per 10 minutes when measured at 250° C. at a shear load of 5.0 kg.
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Citations
20 Claims
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1. A thermoplastic composition, comprising, based on a total weight of the composition:
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15 to 90 weight percent of a first poly(aliphatic ester-carbonate) having a first weight average molecular weight; 10 to 85 weight percent of a second poly(aliphatic ester-carbonate) having a second weight average molecular weight that is lower than the first weight average molecular weight; 0.01 to 0.5 weight percent of a mold release agent; 0.01 to 0.5 weight percent of a thermal stabilizer; and 0.01 to 0.5 weight percent of a chain extender, wherein the foregoing amounts total 100 weight percent, and are based on the total weight of the thermoplastic composition, and wherein the thermoplastic composition has an average melt volume flow rate of less than 40 cubic centimeters per 10 minutes when measured at 300°
C. at a shear load of 1.2 kg, dwell 300 seconds, in accordance with ASTM 1238, andan average melt volume flow rate of less than 40 cubic centimeters per 10 minutes when measured at 250°
C. at a shear load of 5.0 kg, dwell 300 seconds, in accordance with ASTM 1238. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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11. (canceled)
Specification