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.