Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
Inventor
active
Bisphenol synthesis on modified ion-exchange resins using specia
Copolycarbonate from mixture of polyarylene diol
Method of preparing aliphatic-aromatic polycarbonates
Method of preparing polycarbonates and polyester carbonates
Process for the preparation of polyimide esters of trimellitic a
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