made ▁fi ber , ▁text ile ▁and ▁pl ast ics ▁industry . ▁▁ 1 9 8 0 s ▁▁ ▁On ▁September ▁ 1 3 , ▁ 1 9 8 5 ▁the ▁foundation ▁stone ▁of ▁the ▁state - of - the - art ▁P E t ▁spin ning ▁mill ▁was ▁laid . ▁This ▁enabled ▁Ober bru ch ▁to ▁become ▁the ▁largest ▁and ▁most ▁efficient ▁European ▁producer ▁of ▁poly ester ▁fil ament . ▁In ▁ 1 9 8 6 , ▁Ober bru ch ▁was ▁again ▁pac em aker ▁of ▁the ▁latest ▁technical ▁innov ation . ▁The ▁production ▁of ▁high - per formance ▁carbon ▁( fi ber ) ▁Ten ax ▁started . ▁In ▁ 1 9 8 3 , ▁En ka ▁AG , ▁a ▁company ▁of ▁the ▁Ak zo ▁Group ▁signed ▁a ▁license ▁agreement ▁for ▁the ▁production ▁of ▁carbon ▁fi ber ▁with ▁T oh o ▁Ray on ▁Co . ▁Ltd ., ▁Tokyo . ▁Since ▁ 1 9 8 6 , ▁carbon ▁fib ers ▁with ▁an ▁initial ▁capacity ▁of ▁ 3 6 0 ▁tons ▁per ▁an num ▁have ▁been ▁produced ▁in ▁Ober bru ch . ▁ 1 9 9 0 ▁marked ▁the ▁oper ational ▁start ▁of ▁the ▁research ▁facility . ▁In ▁ 1 9 9 3 , ▁Ak zo ▁Nobel ▁F aser ▁AG ▁includes ▁the ▁carbon ▁fi ber ▁activities ▁in ▁a ▁joint ▁vent ure ▁with ▁the ▁lic ensor ▁T oh o ▁Ray on ▁Co . ▁Ltd . ▁T oh o ▁Ten ax ▁F ib ers ▁GmbH ▁& ▁Co . ▁K G ▁is ▁established . ▁Today , ▁T