Article comprising a high flow polyetherimide composition
AssigneeSabic Global Technologies B.V.
InventorsRobert Russell Gallucci, Pamela J. Appel
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Abstract
Molded articles having a maximum thickness of 3 centimeters and including a polyetherimide composition are described. The polyetherimide compositions include 60 to 99.9 weight percent of a polyetherimide having a weight average molecular weight of 5,000 to 80,000 Daltons, and 0.1 to 40 weight percent of an aryl phosphate having a molecular weight from 500 to 1,200 Daltons, wherein weight percent is based on the total weight of the composition. The compositions have a melt flow at least 10% greater than the melt flow of the same polyetherimide composition without the aryl phosphate, measured according to ASTM D1238 at 337° C. under a 6.7 kilogram load.
Claims23
A molded article having a maximum thickness of 3 cm, comprising a polyetherimide composition, the composition comprising,
- 60 to 99.9 weight percent of a polyetherimide having a weight average molecular weight of 5,000 to 80,000 Daltons;
- and
- 0.1 to 40 weight percent of an aryl phosphate having a molecular weight from 500 to 1,200 Daltons;
- wherein weight percent is based on the total weight of the composition;
- wherein the polyetherimide composition excludes aryl phosphates having a molecular weight greater than 2,000 Daltons;
- wherein thermoplastic polymers other than the polyetherimide are excluded from the composition;
- wherein the composition has a melt volume-flow rate of greater than or equal to 5.0 cc/10 minutes at 337° C. using a 6 minute equilibration time and a 6.7 kilogram load, and a melt volume-flow rate using an 18 minute equilibration time of less than 30% higher than the 6 minute melt volume-flow rate measured under the same conditions.
Dependencies are inferred from the claim text.