Polyethersulfone compositions with high heat and good impact resistance
AssigneeSabic Innovative Plastics IP B.V.
InventorsDaniel Joseph Brunelle, Daniel Steiger
Life of this patent
Estimating the term…
Abstract
Polyethersulfones having Tg greater than about 225° C. and a notched Izod value greater than about 1 ft-lb/in, as measured by ASTM D256, comprise from about 5 mol % to less than about 40 mol % structural units of formula 1; and from greater than about 60 mol % to about 95 mol % structural units of formula 2 wherein R1, R2, and R3 are independently at each occurrence a halogen atom, a nitro group, a cyano group, a C1-C12 aliphatic radical, C3-C12 cycloaliphatic radical, or a C3-C12 aromatic radical; n, m, q are independently at each occurrence integers from 0 to 4; and Q is a C3-C20 cycloaliphatic radical, or a C3-C20 aromatic radical.
Claims6
A polyethersulfone having Tg greater than about 235° C. and a notched Izod value greater than about 1 ft-lb/in, said polyethersulfone consisting of
- from about 10 mol % to less than about 40 mol % structural units of formula 1A;
- and
- from greater than about 60 mol % to about 90 mol % structural units of formula 2
- wherein
- R2 and R3 are independently at each occurrence a halogen atom, a nitro group, a cyano group, a C1-C12 aliphatic radical, C3-C12 cycloaliphatic radical, or a C3-C12 aromatic radical;
- and
- n, m, q are independently at each occurrence integers from 0 to 4.
Dependencies are inferred from the claim text.