Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
Inventor
active
Catalyst for polyester polycondensation and method for...
Catalyst for polyester polycondensation and method for...
Polyester resin and process for its production
Polyester resin and process for its production
Polyester resin, molded product made thereof and process for...
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