Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
Inventor
active
Discontinuous catalytic process for the production of polyamide-
Discontinuous process for the production of a polyamide-6,6
Process for the production of polyamides on the basis of .alpha.
Process for the production of stabilizer concentrate for polyami
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