Just information. I am not 100% sure on the science of this. But my memory is that Arylate and Kevlar are both different kinds of Aramid fibers. Arylate is short for Polyarylate. These are polymers. Not too far from the family of Polyesters that made so many super cool (read awful) clothes from the 1970s.
Here is a link to a page with information on different Aramid fibers:
https://polymerdatabase.com/Fibers/Aramid.html
Here is a link to a page with information on Arylate/Polyarylate fibers:
https://polymerdatabase.com/Fibers/Arylate.html
At some point about 10 years ago, this site had the Arylate page listed as a subset in the Aramid page. Now they have separated them. If you look at the chemical compounds, you can see the similarities and the differences.
What is the point of me posting this? Information. Xiom for sure uses the same chemical compound as Butterfly and calls it Aramid because, then it seems similar but different. So, for branding, or maybe some other reason, they want it to sound like Arylate, but not to use the same word Butterfly uses. However, Xiom has not found the same spin or weave that Butterfly uses so, even though it is the same chemical, it does not feel quite the same.
And if you look at the Aramid page you can see listed several brands with slightly different compounds all listed as Aramids:
Suppliers or Aramid fibers: DuPont, Toyobo, Aramid HPM, Fiberline + Teijin.
Brands of Aramid fibers: Conex, Kevlar, Nomex, Twaron, Technora, Teijinconex.
From this, you can see, Arylate can only refer to one compound. Whereas Aramid could refer to any number of other compounds. And, at least one TT company uses the term Aramid to refer to a Polyarylate compound bought from a company named Kuraray and sold under the name Vectran (which is also what Butterfly uses).
So......
Hopefully the information is useful. Nice to hear the playing characteristics of Innegra.