They certainly aren't 'common' resins, that's for sure. Cyanate ester I know of, BMI and polyimides I'm not familiar with. What led you to these resins? Epoxy is very far from the only resin that is used in composites, but the other common ones are vinyl ester and polyester. Then you've got slightly more specialist acrylics, polyurethanes, even silicones. There's heaps of them out there, but the three you have listed are definitely very specialist, they aren't something you will pick up from your local fibreglass store! Haha. 

thanks for the reply, I came across them on tencate's website

If its the same as the prepreg version BMI is mad stuff ,its a ceramic prepreg

has n out life of about 10 minutes !

comes off the roll and the material is soaking wet almost like its wetlay

used it lots for heatshields in f1

throw in in a bag and cook at 180 an once its stripped its post cured to 450 if I remember correctly

very light parts an once post cured you can pick them up by hand straight out of the oven

you think you have cleaned your work area an tools down but next morning you will have a fine white powder on everything the material touched

If its the same as the prepreg version BMI is mad stuff ,its a ceramic prepreg

has n out life of about 10 minutes !

comes off the roll and the material is soaking wet almost like its wetlay

used it lots for heatshields in f1

throw in in a bag and cook at 180 an once its stripped its post cured to 450 if I remember correctly

very light parts an once post cured you can pick them up by hand straight out of the oven

you think you have cleaned your work area an tools down but next morning you will have a fine white powder on everything the material touched

Total brain fade and too many materials !

one I just described isn't mbi !

used mbi on gearboxes,fairly normal to lay up but you have to double breather and release everything do to the resin dissolving bagging !!!