Like stated above, I think "Acrylic" is often used as a generic term for plastic or resin blanks. Exotic blanks just had a zoom meeting last Thursday night about "Acrylic and other plastic, resin type blanks". Ed is very knowledgeable on the subject because he has imported and used many different types. One problem you will find is not all of these blanks are made the same, even when using similar raw materials. Some mix them with more catalyst or under warmer conditions to achieve their end goal results. The commercial made materials are in my opinion harder and more durable than most of the blanks we hobby or home shop blank makers put out. It's hard to compile a list or pin point specifics. Even most epoxies on the market used by blank makers is different from brand to brand. Over used many and found differences in hardness, yellowing, chippy, flexible, and so on. I think a lot of the "kitless" guys out there are using blanks made by commercial companies and blanks made from urethane resin like Alumilite Clear and Clear Slow. They have just proven themselves to work well for these projects.
I currently use Silmar 41, Alumilite Clear, Clear slow, and a couple different brands of epoxy, all for specific blanks. One is not better than the others. They all have their pro's and when making blanks, some just require a different resin to turn out.