This polymer was launched by Dynamit Nobel in 1968 under the name Trogamid T.[1] In 1988, the business was acquired by Hüls which later became Evonik.
TMD is derived from isophorone, a trimer of acetone.
The polymerization is unusual for a nylon polymer.
In the first step TMD is reacted with dimethyl terephthalate and methanol is removed to form an amide.
In a second step polycondensation is done to make nylon TMDT.