Thermosettable resin composition containing alkenyl phenyl cyanate

Claim 2

A thermosettable composition which comprises (A) at least one alkenyl phenyl cyanate containing at least 10 percent by weight of monomeric material represented by formula I ##STR25## wherein each R, R 1 and R 2 is independently hydrogen or a hydrocarbyl group having from 1 to about 3 carbon atoms; each X is independently hydrogen, a hydrocarbyl group or a hydrocarbyloxy having from 1 to about 10 carbon atoms, chlorine or bromine; each Y is independently hydrogen or a hydrocarbyl group having from 1 to about 10 carbon atoms; Y 1 is a ##STR26## group and x and y are positive integers and the sum of x plus y has a value of 4; and (B) at least one of (1) at least one aromatic polycyanate, (2) at least one polymaleimide, or (3) at least one polymerizable ethylenically unsaturated aromatic compound; wherein component A comprises from about 1 to about 99 percent by weight of the combined weight of components A and B; with the proviso that component (B-3) is not used alone with component (A).

Claim 3

A thermosettable composition of claim 1 wherein (i) component (A) contains at least about 90 percent by weight of monomeric material represented by formula I; (ii) component (B-1) is represented by the following formulas IIIA, IIIB, IIIC, IIID or any combination thereof ##STR27## wherein each Z is independently hydrogen, a hydrocarbyl or hydrocarbyloxy group having from 1 to about 10 carbon atoms, chlorine, bromine, or a --O--C.tbd.N group; Z 1 is independently a direct bond, an alkylene group having from 1 to about 5 carbon atoms, --S--, --S--S--, ##STR28## Z 2 is independently a divalent hydrocarbon group having from 1 to about 6, carbon atoms or a ##STR29## group; Z 3 is a hydrogen, a hydrocarbyl or hydrocarbyloxy group having from 1 to about 10 carbon atoms, chlorine or bromine; m has a value of zero to about 100, m 1 has a value of from about 0.001 to about 6; n has a value of from zero to about 10; n 1 has a value of 4 and n 2 has a value of 3; (iii) component (B-2) is represented by formulas V, VI, VII or any combination thereof ##STR30## wherein R, R 1 and Z 1 are as above; Q is a divalent alkyl radical having 2 to about 12 carbon atoms and m 1 has a value of 0.01 to about 10; (iv) component (B-3) is represented by the following formula XII ##STR31## wherein R, R 1 , R 2 and Y 1 are as above defined, each Q 1 is independently hydrogen, a hydrocarbyl group or hydrocarbyloxy group having from 1 to about 10 carbon atoms, a vinyl group, an allyl group, chlorine or bromine; each Q 2 is independently hydrogen or a hydrocarbyl or hydrocarbyloxy group having from 1 to about 4 carbon atoms and w and w 1 are each positive integers, the sum of which is 5; (v) component (A) comprises from about 1 to about 75 percent by weight of the combined weight of components A and B.

Claim 4

A thermosettable composition of claim 2 wherein component A comprises from about 5 to about 50 percent by weight of the combined weight of components A and B.

Claim 5

A thermosettable composition of claim 3 wherein (i) component A is selected from p-isopropenylphenyl cyanate, p-vinyl phenyl cyanate, m-vinyl phenyl cyanate, methyl-p-isopropenylphenyl cyanate, 3-chloro-4-isopropenylphenyl cyanate, p-allylphenyl cyanate, p-methallylphenyl cyanate, m-allylphenyl cyanate, 2,6-dimethyl-4-allylphenyl cyanate, or mixtures thereof; (ii) component (B-1) is selected from bisphenol A dicyanate, the dicyanates of 4,4'-dihydroxydiphenyl oxide, resorcinol, 4,4'-thiodiphenol, 4,4'-sulfonyldiphenol, 3,3',5,5'-tetrabromobisphenol A, 2,2',6,6'-tetrabromobisphenol A, 3-phenylbisphenol A, 4,4'-dihydroxybiphenyl, 2,2'-dihydroxybiphenyl, 2,2',4,4'-tetrahydroxydiphenyl methane, 2,2',6,6'-tetramethyl-3,3',5,5'-tetrabromobisphenol A, 3,3'-dimethoxybisphenol A, ##STR32## the tricyanate of tris (hydroxyphenyl) methane, the polycyanate of a phenolformaldehyde condensation product (novolac), the polycyanate of a dicyclopentadiene and phenol condensation product, or mixtures thereof; (iii) component (B-2) is selected from N,N'-ethylenebismaleimide, N,N'-ethylenebis(2-methylmaleimide), N,N'-hexamethylenemaleimide, N,N'-(oxydi-p-phenylene)bismaleimide, N,N'-(methylenedi-p-phenylene)bismaleimide, N,N'-(methylenedi-p-phenylene)bis(2-methylmaleimide), N,N'-(thiodi-p-phenylene)bismaleimide, N,N'-(sulfonyldi-m-phenylene)bismaleimide, N,N'-(isopropylidenedi-p-phenylene)bismaleimide, polymethylene polyphenylene polymaleimides, or mixtures thereof; (iv) component (B-3) is selected from styrene, alpha-methylstyrene, chlorostyrene, bromostyrene, t-butylstyrene, p-methylstyrene, p-methoxystyrene, divinylbenzene, propylstyrene, chloro-alpha-methylstyrene, m-methylstyrene, o-methylstyrene, allylbenzene, methallylbenzene, p-allylstyrene, divinylbenzene, or mixtures thereof.

Claim 6

A thermosettable composition of claim 1 wherein (i) component (A) is p-isopropenyl phenyl cyanate; (ii) component (B) consists of a mixture of components (B-1), (B-2) and (B-3); (iii) component (B-1) is bisphenol A dicyanate; (iv) component (B-2) is the bismaleimide of methylene dianiline; and (v) component (B-3) is styrene.

Claim 7

A thermosettable composition of claim 2 wherein (i) component (A) is p-isopropenyl phenyl cyanate; (ii) component (B) consists of a mixture of components (B-1), (B-2) and (B-3); (iii) component (B-1) is bisphenol A dicyanate; (iv) component (B-2) is the bismaleimide of methylene dianiline; and (v) component (B-3) is styrene.

Claim 8

A thermosettable composition of claim 3 wherein (i) component (A) is p-isopropenyl phenyl cyanate; (ii) component (B) consists of a mixture of components (B-1), (B-2) and (B-3); (iii) component (B-1) is bisphenol A dicyanate; (iv) component (B-2) is the bismaleimide of methylene dianiline; and (v) component (B-3) is styrene.

Claim 9

A thermosettable composition of claim 1 wherein (i) component (A) is p-isopropenyl cyanate; (ii) component (B) consists of component (B-1); (iii) component (B-1) is bisphenol A cyanate.

Claim 10

A thermosettable composition of claim 2 wherein (i) component (A) is p-isopropenyl cyanate; (ii) component (B) consists of component (B-1); (iii) component (B-1) is bisphenol A cyanate.

Claim 11

A thermosettable composition of claim 3 wherein (i) component (A) is p-isopropenyl cyanate; (ii) component (B) consists of component (B-1); (iii) component (B-1) is bisphenol A cyanate.

Claim 12

A thermosettable composition of claim 1 wherein (i) component (A) is p-isopropenyl phenyl cyanate; (ii) component (B) consists of a mixture of components (B-1) and (B-3); (iii) component (B-1) is bisphenol A dicyanate; and (iv) component (B-3) is styrene.

Claim 13

A thermosettable composition of claim 2 wherein (i) component (A) is p-isopropenyl phenyl cyanate; (ii) component (B) consists of a mixture of components (B-1) and (B-3); (iii) component (B-1) is bisphenol A dicyanate; and (iv) component (B-3) is styrene.

Claim 14

A thermosettable composition of claim 3 wherein (i) component (A) is p-isopropenyl phenyl cyanate; (ii) component (B) consists of a mixture of components (B-1) and (B-3); (iii) component (B-1) is bisphenol A dicyanate; and (iv) component (B-3) is styrene.

Claim 15

A thermosettable composition of claim 1 wherein (i) component (A) is p-isopropenyl phenyl isocyanate; (ii) component (B) consists of a mixture of components (B-1) and (B-2); (iii) component (B-1) is bisphenol A dicyanate; and (iv) component (B-2) is the bismaleimide of methylene dianiline.

Claim 16

A thermosettable composition of claim 2 wherein (i) component (A) is p-isopropenyl phenyl isocyanate; (ii) component (B) consists of a mixture of components (B-1) and (B-2); (iii) component (B-1) is bisphenol A dicyanate; and (iv) component (B-2) is the bismaleimide of methylene dianiline.

Claim 17

A thermosettable composition of claim 3 wherein (i) component (A) is p-isopropenyl phenyl isocyanate; (ii) component (B) consists of a mixture of components (B-1) and (B-2); (iii) component (B-1) is bisphenol A dicyanate; and (iv) component (B-2) is the bismaleimide of methylene dianiline.