Claims
- 1. A curable material consisting of:
- a thermoset material which may or may not be fluorine-containing selected from the group consisting of epoxy resin, bismaleimides, acetylene-terminated propargyl resins, bisnadimides, benzocyclobutene, and a bismaleimide-triazine-epoxy blend and,
- a multicomponent fluorine-containing thermoplastic polymer;
- said material being heat-curable at temperature between about 100.degree. C. to 325.degree. C.;
- said material in the cured state comprising a polymer network having a plurality of discrete phases of said multicomponent fluorine-containing thermoplastic polymer dispersed therein;
- said multicomponent fluorine-containing thermoplastic polymer phases being in the range of submicron to micron size.
- 2. The material in the cured state defined in claim 1 which has a toughness of greater than about 100 Joules per square meter.
- 3. The curable material of claim 1 wherein the thermoset material which may or may not contain fluorine which further comprises monomers, prepolymers or resins selected from the group consisting of epoxy, bismaleimide, acetylene terminated propargyl, bisnadimides, benzocyclobutene, bismaleimide-triazine-epoxy blend, and mixtures thereof.
- 4. The curable material defined in claim 1 wherein said fluorine-containing multicomponent thermoplastic polymer has the repeating structural element containing 1-99 mol % of a repeating structural element of the formula (IV) ##STR35## and 99-1 mol % of a repeating structural element of the formula (V) ##STR36## and 99-0 mol % of a repeating structural element of the formula (VI) ##STR37## wherein X is any group capable of reacting with an amine, epoxide, nadimide, maleimide, acetylene, propargyl, benzocyclobutene; and n=1-100; and wherein R.sub.1 represents bivalent aromatic groups of the formulas (VIIa)-(VIIe) ##STR38## wherein Y represents --CO--, --PO(C.sub.6 H.sub.5)--, --SO--, or --SO.sub.2 --, p signifies the number 0, 1 or 2 and q is the number 2 or 3, R.sub.2, R.sub.3, and R.sub.4 signify bivalent aromatic groups of the formulas (VIIIa) to (VIIIr) ##STR39## wherein Q represents a direct bond, --CH.sub.2 --, --O--, or --CO-- and Z represents --CH.sub.2 --, --C(CH.sub.3).sub.2 --, --C(CH.sub.3)(C.sub.6 H.sub.5)--, --CH(CH.sub.3)--, --C(CF.sub.3)(C.sub.6 H.sub.5)--,--C(CF.sub.3).sub.2 --, --PO(C.sub.6 H.sub.5)--, --S--, --O--, --SO--, --SO.sub.2 -- or --CO--,
- wherein the aromatic rings of the formulas (VIIa)-(VIIe) are unsubstituted or are substituted by one or more halogen atoms and/or (C.sub.1 -C.sub.5) alkyl groups or (C.sub.1-C.sub.5) alkoxy groups which may fluorine-containing and
- wherein the aromatic rings of the formulas (VIIIa)-(VIIIr) are unsubstituted or are substituted by one or more halogen atoms and/or (C.sub.1 -C.sub.5) alkyl groups or (C.sub.1 -C.sub.5) alkoxy groups which may contain fluorine.
- 5. The curable material of according to claim 4, wherein in the formulas (IV), (V), and (VI), R.sub.1 represents ##STR40## and R.sub.2, R.sub.3 and R.sub.4 represent ##STR41## wherein the aromatic rings are unsubstituted or are substituted by one or more halogen atoms and/or (C.sub.1 -C.sub.5) alkyl groups which may contain fluorine or (C.sub.1 -C.sub.5) alkoxy groups which may contain fluorine.
- 6. The curable material of according to claim 4, wherein in the formula (IV), (V), and (VI); R.sub.1 represents ##STR42## and R.sub.2 represents ##STR43## and R.sub.3 represents ##STR44##
- 7. The multicomponent fluorine-containing thermoplastic polymer defined in claim 4 wherein X is hydroxyl group.
- 8. The curable material of claim 6, wherein said material is fully soluble in methyl ethyl ketone.
- 9. The curable material defined in claim 1 that contains a catalyst to accelerate the cure of said uncured material.
- 10. The curable material defined in claim 1 wherein said multicomponent fluorine-containing thermoplastic polymer is soluble in both methyl ethyl ketone and said thermoset prior to cure.
- 11. The curable material defined in claim 1 wherein said multicomponent fluorine-containing thermoplastic polymer has a glass transition temperature of at least 130.degree. C.
- 12. The curable material defined in claim 4, wherein said multicomponent fluorine-containing thermoplastic polymer has a molecular weight in the range of 2,500 to 30,000 g/mol number average molecular weight.
- 13. The curable material defined in claim 4, wherein said multicomponent fluorine-containing thermoplastic polymer has a molecular weight of about 15,000 g/mol number average molecular weight.
- 14. The curable material defined in claim 4 wherein said multicomponent fluorine-containing thermoplastic polymer is present in the range of between about 5 and 50 weight percent.
- 15. The curable material defined in claim 6 wherein said multicomponent fluorine-containing thermoplastic polymer has a molecular weight in the range of 2,500 to 30,000 g/mol number average molecular weight.
- 16. The curable material defined in claim 6 wherein said multicomponent fluorine-containing thermoplastic polymer is present in the range of between about 5 and 50 weight/weight percent.
- 17. A prepreg which is heat curable within a temperature range of between about 100.degree. C. and 325.degree. C. comprising a reinforcing material impregnated with said curable material defined in claim 4.
- 18. A prepreg which is heat curable within a temperature range of between about 100.degree. C. and 325.degree. C. comprising a reinforcing material impregnated with said curable material defined in claim 6.
- 19. The prepreg defined in claim 17 wherein said reinforcing material is woven glass fabric.
- 20. The prepreg defined in claim 19 wherein said woven glass fabric is E-glass.
- 21. The prepreg defined in claim 17 wherein said reinforcing material is a non-woven aramid fiber mat.
- 22. The prepreg defined in claim 17 wherein said reinforcing material is a mat of expanded polytetrafluoroethylene.
- 23. The prepreg defined in claim 17 wherein said reinforcing material is woven or unidirectional carbon fibers.
- 24. The prepreg defined in claim 18 wherein said reinforcing material is woven glass fabric.
- 25. The prepreg defined in claim 18 wherein said reinforcing material is a non-woven aramid fiber mat.
- 26. The prepreg defined in claim 18 wherein said reinforcing material is a mat of expanded polytetrafluorethylene.
- 27. The prepreg defined in claim 18 wherein said reinforcing material is woven or unidirectional carbon fibers.
- 28. A blend capable of forming an electrically conductive composite comprising the curable material of claim 11 in admixture with electrically conductive particles selected from the group consisting of carbon, copper, nickel, silver, gold, platinum, palladium, iron, zinc, tungsten, molybdenum and alloys and mixtures thereof.
- 29. A blend capable of forming an electrically conductive composite comprising said prepreg defined in claim 17 in admixture with electrically conductive particles selected from the group consisting of carbon, copper, nickel, silver, gold, platinum, palladium, iron, zinc, tungsten, molybdenum and alloys and mixtures thereof.
- 30. A blend capable of forming a thermally conductive composite comprising the curable material of claim 4 in admixture with heat conductive particles selected from the group consisting of aluminum oxide, aluminum nitride, boron nitride, zinc oxide, diamond and silica.
- 31. A blend capable of forming a thermally conductive composite comprising the curable material of claim 11 in admixture with heat conductive particles selected from the group consisting of aluminum oxide, aluminum nitride, boron nitride, zinc oxide, diamond and silica.
- 32. A blend comprising the curable material defined in claim 4 in admixture with between about 25 to about 65 volume percent hollow glass spheres or silica spheres each said sphere having a diameter within the range of between about 5 to 25 microns.
- 33. A blend comprising the prepreg defined in claim 17 in admixture with between about 25 to about 65 volume percent hollow glass or silica spheres, each said sphere having a diameter within the range of between about 5 to 25 microns.
- 34. A blend comprising the prepreg defined in claim 19 in admixture with between about 25 to about 65 volume percent hollow glass or silica spheres, each said sphere having a diameter within the grange of between about 5 to 25 microns.
Parent Case Info
This is a division of application Ser. No. 08/114,419, filed Aug. 30, 1993.
US Referenced Citations (18)
Foreign Referenced Citations (1)
Number |
Date |
Country |
388358 |
Sep 1990 |
EPX |
Divisions (1)
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Number |
Date |
Country |
Parent |
114419 |
Aug 1993 |
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