Thermosetting resin composition, process for preparation thereof and cured product thereof

A process for the preparation of thermosetting resin compositions which comprises heating tri-allylisocyanurate and a polymaleimide represented by the following formula:

• ##STR7## wherein n is a number of at least 1, to form a solution.

A cured product obtained by heating a thermosetting resin composition comprising an admixture consisting of tri-allylisocyanurate and a polymaleimide represented by the following general formula:

• ##STR8## wherein n is a number of at least 1, the amount of tri-allylisocyanurate being 3 to 300 parts by weight per 100 parts by weight of polymaleimide.

A thermosetting resin composition comprising an admixture consisting essentially of tri-allylisocyanurate, a polymaleimide represented by the following general formula:

• ##STR9## wherein n is a number of at least 1, and a radical polymerization initiator, the amount of tri-allylisocyanurate being 3 to 300 parts by weight per 100 parts by weight of polymaleimide.

A thermosetting resin composition comprising an admixture consisting essentially of tri-allylisocyanurate, a polymaleimide represented by the following general formula:

• ##STR10## wherein n is a number of at least 1, a radical polymerization initiator and a radical polymerization thermosetting resin, the amount of tri-allylisocyanurate being 3 to 300 parts by weight per 100 parts by weight of polymaleimide.

A thermosetting resin composition comprising an admixture consisting essentially of tri-allylisocyanurate, a polymaleimide represented by the following general formula:

• ##STR11## wherein n is a number of at least 1, a radical polymerization initiator, radical polymerizable thermosetting resin, and a filler, the amount of tri-allylisocyanurate being 3 to 300 parts by weight per 100 parts by weight of polymaleimide.

A thermosetting resin composition comprising an admixture consisting essentially of tri-allylisocyanurate, a polymaleimide represented by the following general formula:

• ##STR12## wherein n is a number of at least 1, and a bismaleimide compound represented by the following general formula:
• ##STR13## wherein R.sub.2 stands for an alkylene group, an arylene group or an aralkylene group, a radical polymerization initiator, and a radical polymerizable thermosetting resin, the amount of tri-allylisocyanurate being 3 to 300 parts by weight per 100 parts by weight of polymaleimide and bismaleimide.

A thermosetting resin composition comprising an admixture consisting essentially of tri-allylisocyanurate, a polymaleimide represented by the following general formula:

• ##STR14## wherein n is a number of at least 1, a bismaleimide compound represented by the following general formula:
• ##STR15## wherein R.sub.2 stands for an alkylene group, an arylene group or an aralkylene group, a radical polymerization initiator, a radical polymerizable thermosetting resin and a maleimide compound represented by the following general formula:
• ##STR16## wherein R.sub.1 stands for an alkyl group, an aryl group or an aralky group, the amount of tri-allylisocyanurate being 3 to 300 parts by weight per 100 parts by weight of polymaleimide, bismaleimide compound and maleimide compound.

A thermosetting resin composition comprising an admixture consisting essentially of tri-allylisocyanurate, a polymaleimide represented by the following general formula:

• ##STR17## wherein n is a number of at least 1, a radical polymerization initiator, radical polymerizable thermosetting resin, filler and a bismaleimide compound represented by the following general formula:
• ##STR18## wherein R.sub.2 stands for an alkylene group, an arylene group or an aralkylene group, the amount of tri-allylisocyanurate being 3 to 300 parts by weight per 100 parts by weight of polymaleimide and bismaleimide.

A thermosetting resin composition comprising an admixture consisting essentially of tri-allylisocyanurate, a polymaleimide represented by the following general formula:

• ##STR19## wherein n is a number of at least 1, radical polymerization initiator, radical polymerizable thermosetting resin, filler, a bismaleimide compound represented by the following general formula:
• ##STR20## wherein R.sub.2 stands for an alkylene group, an arylene group or an aralkylene group and a maleimide compound represented by the following general formula:
• ##STR21## wherein R.sub.1 stands for an alkyl group, an aryl group or an aralkyl group, the amount of tri-allylisocyanurate being 3 to 300 parts by weight per 100 parts by weight of polymaleimide, bismaleimide compound and maleimide compound.