Mixtures of spiroheptadienes

Details Mixtures of spiroheptadienes Mixtures of spiroheptadienes

C - Chemistry, Metallurgy

07

C

C07C 13/72 (2006.01) C07C 25/22 (2006.01) C07C 43/285 (2006.01) C07C 49/798 (2006.01) C07C 317/14 (2006.01) C07C 321/30 (2006.01) C07F 7/08 (2006.01) H05K 1/03 (2006.01)

Patent

CA 2068833

Mixtures essentially comprising compounds of formula I or II Image wherein X is a hydrogen atom or vinyl, A is a divalent aromatic radical which is unsubstituted or substituted by one or more C1-C20alkyl groups, halogen atoms or halogen-substituted C1-C20alkyl groups, R1, R1', R2', R3', R3 and R3' are each a hydrogen atom, or R1 and R1', R2 and R2'and R3 and R3' arc each together ethylene, R4 is C1-C6alkyl, phenylalkyl containing 1 to 6 carbon atoms in the alkyl moiety or is trialkylsilyl containing 1 to 6 carbon atoms in each alkyl moiety, m is 0, 1 or 2, n is 0 or an average number from 1 to 200, p is an average number from 1 to 100 and q is 0 or an average number from 1 to 100, can be cured by heating and are suitable for making laminates, especially for fabricating copper-clad circuit boards.

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