Subject: butyl and rubber

Hello mad scientists,



What I really like to know is:



Rubber is made of different kind of materials. One of them is butyl.

What I would like to know is, what is butyl.

Where is it made from.

What are the 'ingredients'. 



I know there are many sorts of butyl, but I want to know the type of butyl, that is used to make rubber.



My english isn't that good, so what I really want to know is, everything about butyl you know.



Many thanks,





Rob

Re: butyl and rubber