POLYARYL ETHER KETONE - POLYCARBONATE COPOLYMER BLENDS
A polymer composition comprising a mixture of a) a first resin component comprising a polyaryl ether ketone, a polyaryl ketone, a polyether ketone, a polyether ether ketone, or a combination of two or more of the foregoing, and b) a second resin component comprising a specific type of copolycarbonate, wherein the mixture has at least two glass transition temperatures, as measured by ASTM method D5418, wherein the first glass transition temperature is from 120 to 160° C. and the second glass transition temperature is from 170 to 280° C. is disclosed. The compositions have improved properties such as improved load bearing capability at high temperature, better impact strength, and a high crystallization temperature.
1 . A polymer composition comprising a mixture of:
a) a first resin component comprising a polyaryl ether ketone, a polyaryl ketone, a polyether ketone, a polyether ether ketone, or a combination of two or more of the foregoing, and
b) a second resin component comprising a copolycarbonate having repeating carbonate units of formula (VII)
wherein R 1 is derived from a dihydroxy compound of formula (VIII):
wherein R 3 and R 5 are each independently a halogen, a C 1-10 alkyl group, alkoxy or a C 6-20 aryl group, R 4 is a C 1-6 alkyl, a C 6-20 aryl group, phenyl, or phenyl substituted with up to five halogens, sulfone, alkoxy, or C 1-10 alkyl groups, and c is 0 to 4; and R 2 is derived from a dihydroxy hydrocarbylene compound of formula (IX)
HO—R 6 —OH (IX)
wherein at least 60 mole % of the R 6 groups are aromatic, and the dihydroxy compound of formula (IX) is not the same as the dihydroxy compound of formula (VIII), and wherein x+y=100%, and wherein the repeating carbonate units of formula (VII) comprise at least 10 mole % of formula (VIII),
wherein the mixture has at least two glass transition temperatures, as measured by ASTM method D5418, wherein the first glass transition temperature is from 120 to 160° C. and the second glass transition temperature is from 170 to 280° C.
2 . The composition of claim 1 , wherein the repeating carbonate units of formula (VII) comprise at least 30 mole % of the dihydroxy compound of formula (VIII).
3 . The composition of claim 1 , wherein the dihydroxy compound of formula (VIII) comprises a dihydroxy compound of formula (XV)
wherein R 4 is a C 1-6 alkyl or phenyl group.
4 . The composition of claim 1 , wherein the dihydroxy compound of formula (VIII) comprises a dihydroxy compound of formula (XVI) or (XVII)
5 . The composition of claim 1 , wherein the composition has a heat distortion temperature (HDT) of greater than or equal to 160° C., measured as per ASTM method D648 at 66 psi (0.46 MPa) on a 3.2 mm sample.
6 . The composition of claim 1 , wherein a) is present in an amount of 75 to 30 wt % and b) is present in an amount of 25 to 70 wt %, based on 100 wt % of the composition.
7 . The composition of claim 1 , further comprising less than 1 wt % of a fibrous reinforcement selected from the group consisting of glass fibers, carbon fibers, metal fibers, and ceramic fibers and combinations of two or more of the foregoing.
8 . The composition of claim 1 , wherein the composition has a modulus of at least 300 MPa at 170° C., as measured by ASTM D5418 on a 3.2 mm sample.
9 . The composition of claim 1 , wherein the copolycarbonate has less than or equal to 1000 ppm of benzylic protons.
10 . The composition of claim 1 , wherein the copolycarbonate has less than or equal to 1 mole % urethane groups.
11 . The composition of claim 1 , wherein the composition has a crystalline melting point from 300 to 380° C. as measured by ASTM method D3418.
12 . The composition of claim 1 , wherein the second resin has a glass transition temperature (Tg) of 180 to 280° C., as measured by ASTM method D3418.
13 . The composition of claim 1 , wherein the crystallization temperature, as measured from a molten polymer mixture cooled at a rate of 20° C./min., is greater than or equal to 250° C.
14 . The composition of claim 1 having a reversed notched Izod impact strength greater than or equal to 1500 J/m, measured as per ASTM method D256 on a 3.2 mm sample.
15 . An article comprising the composition of claim 1 .
16 . The article of claim 15 , wherein the article is a sheet, a film, a multilayer sheet, a multilayer film, a molded part, an extruded profile, a fiber, a coated part or a foam.
17 . A polymer composition comprising a mixture of:
a) from 75 to 30 wt % of a first resin component comprising a polyaryl ether ketone, a polyaryl ketone, a polyether ketone, a polyether ether ketone, or a combination of two or more of the foregoing, and
b) from 25 to 70 wt % of a second resin component comprising a copolycarbonate having repeating carbonate units of formula (VII)
wherein R 1 is derived from a dihydroxy compound of formula (VIII):
wherein R 4 is a C 1-6 alkyl, a C 6-20 aryl group, phenyl, or phenyl substituted with up to five halogens, sulfone, alkoxy, or C 1-10 alkyl groups; and R 2 is derived from a dihydroxy hydrocarbylene compound of formula (IX)
HO—R 6 —OH (IX)
wherein at least 60 mole % of the R 6 groups are aromatic, and the dihydroxy compound of formula (IX) is not the same as the dihydroxy compound of formula (XV), and wherein x+y=100%, and wherein the repeating carbonate units of formula (VII) comprise at least 10 mole % of formula (XV),
wherein the mixture has at least two glass transition temperatures, as measured by ASTM method D5418, wherein the first glass transition temperature is from 120 to 160° C. and the second glass transition temperature is from 170 to 280° C.
18 . The composition of claim 17 , wherein R 4 is a C 1-6 alkyl or phenyl group.
19 . The composition of claim 17 , wherein the dihydroxy compound of formula (XV) comprises a dihydroxy compound of formula (XVI) or (XVII)
20 . The composition of claim 17 wherein the second resin has a glass transition temperature (Tg) of 180 to 280° C., as measured by ASTM method D3418.
21 . An article comprising the composition of claim 17 .
22 . A polymer composition comprising a mixture of:
a) from 75 to 30 wt % of a first resin component comprising a polyaryl ether ketone, a polyaryl ketone, a polyether ketone, a polyether ether ketone, or a combination of two or more of the foregoing, and
b) from 25 to 70 wt % of a second resin component comprising a copolycarbonate having repeating carbonate units of formula (VII)
wherein R 1 is derived from a dihydroxy compound of formula (XV)
wherein R 4 is C 1-6 alkyl or phenyl group; and R 2 is derived from a dihydroxy hydrocarbylene compound of formula (IX)
HO—R 6 —OH (IX)
wherein at least 60 mole % of the R 6 groups are aromatic, and the dihydroxy compound of formula (IX) is not the same as the dihydroxy compound of formula (XV), wherein x+y=100%, and wherein the repeating carbonate units of formula (VII) comprise at least 10 mole % of formula (XV),
wherein the mixture has at least two glass transition temperatures, as measured by ASTM method D5418, wherein the first glass transition temperature is from 120 to 160° C. and the second glass transition temperature is from 170 to 280° C.