Claims
- 1. A molding composition comprising:
- (A) aromatic vinyl ether of the formula ##STR34## and (B) maleimide having at least one chemically combined unit of the formula ##STR35## wherein R.sup.1 is an alkylene radical of from 1 to 8 carbon atoms, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are selected from the group consisting of hydrogen, halogen and alkyl radicals of from 1 to 8 carbon atoms, G is selected from the group consisting of --O--, ##STR36## and mixtures thereof, A is selected from a group consisting of monovalent and polyvalent aromatic radicals of from 6 to 130 carbon atoms, n is an integer equal to 1-10 inclusive and both aa and bb are integers having a value of 0 or 1, subject to the proviso that when bb is zero, aa is zero.
- 2. A molding composition of claim 1 additionally comprising an effective amount of thermal-curing catalyst.
- 3. A molding composition of claim 2 wherein the thermal-curing catalyst is selected from the class consisting of organic peroxide and azo-compounds.
- 4. A molding composition in accordance with claim 3 wherein the thermal-curing catalyst is selected from a group of organic peroxides consisting of t-butyl perbenzoate, t-butylhydro-peroxide benzopinacole, and benzoyl peroxide.
- 5. A molding composition of claim 1 wherein the maleimide is bismaleimide of the following formula ##STR37## wherein R.sup.6 and R.sup.5 are previously defined in claim 2 and X is selected from the group consisting of divalent hydrocarbon radicals of from 1 to 35 carbon atoms and divalent groups of the formula ##STR38## wherein Z is either a bond between the phenyl groups or selected from the class of divalent radicals consisting of hydrocarbon radicals of from 1 to 15 carbon atoms, --S--, --O--, --SO.sub.2 --, ##STR39## wherein R.sup.7 is a monovalent alkyl radical of from 1 to 6 carbon atoms.
- 6. A molding composition in accordance with claim 5 wherein the divalent radical, X, of the bismaleimide is bisphenol-A.
- 7. A molding composition of claim 1 wherein the maleimide is of the following formula ##STR40## wherein R.sup.6 and R.sup.5 are as previously defined in claim 2 and both X and X' are independently selected from the group consisting of divalent hydrocarbon radicals of from 1 to 35 carbon atoms and divalent groups of the formula ##STR41## where Z is selected from the class of divalent radicals consisting of divalent hydrocarbon radicals of from 0 to 15 carbon atoms, --X--, --O--, --SO.sub.2 --, ##STR42## wherein R.sup.7 is a monovalent alkyl radical of from 1 to 6 carbon atoms and m is an integer from 1 to 10 inclusive.
- 8. A molding composition in accordance with claim 1 wherein the maleimide is selected from the group consisting of N,N-r,4'-diphenylmethane bismaleimide and N,N'-6-methyl-1,3-phenylene bismaleimide.
- 9. A molding composition in accordance with claim 1 wherein the aromatic radicals represented by A of formula I are selected from the group consisting of phenylene, tolylene, xylylene, naphthylene, xenyl, anthrylene, diaryl groups of the formula ##STR43## and polyvalent aromatic radicals selected from the group of formulas consisting of ##STR44## wherein Q is selected from a class consisting of divalent radicals of the formulas --S--, --O--, --SO.sub.2 --, ##STR45## and alkylene radicals of from 1-8 carbon atoms, R.sup.7 is an radical of from 1 to 6 carbon atoms, and n' is an integer equal to 1 to 10 inclusive.
- 10. A molding composition in accordance with claim 1 wherein the aromatic radical A of formula I is bisphenol-A.
- 11. A molding composition in accordance with claim 1 wherein the aromatic vinyl ether is selected from a group consisting of bisvinyl ethers having the formulas ##STR46##
- 12. A molding composition in accordance with claim 1 wherein a molar ratio of maleimide to aromatic vinyl ether has a value within the range of about 0.25 to about 4.
- 13. A molding composition comprising:
- (A) 0 to 60% of one or more fillers and
- (B) 40 to 100% of a reactive composition comprising
- (a) aromatic vinyl ether of the formula ##STR47## and (b) maleimide having at least one chemically combined of the formula ##STR48## wherein R.sup.6, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are selected from the group consisting of hydrogen, halogen and alkyl radicals of from 1 to 8 carbon atoms, R.sup.1 is an alkylene radical of from 1 to 8 carbon atoms, G is selected from the group consisting of --O--, ##STR49## and mixtures thereof, A is selected from a group consisting of monovalent and polyvalent aromatic radicals of from 6 to 130 carbon atoms, n is an integer equal to 1-10 inclusive and both aa and bb are integers having a value of 1 or 0, subject to the proviso that when bb is zero, aa is zero.
- 14. A molding composition in accordance with claim 13 wherein said filler is selected from a group consisting of clay, silica, calcium carbonate, aluminum trihydrate, carbon black, talc, calcium sulfate and wollastonite.
- 15. A molding composition in accordance with claim 13 wherein said filler is in the form of a fiber matrix.
Parent Case Info
This application is a continuation-in-part application of Ser. No. 514,728, filed July 18, 1983, now abandoned.
US Referenced Citations (16)
Non-Patent Literature Citations (2)
Entry |
Leonard, ed., Vinyl and Diene Monomers, vol. 24, part I, 1970, pp. 399-401. |
Ser. No. 459,442. |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
514728 |
Jul 1983 |
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