Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
Inventor
active
Amber polyester compositions for packaging food and beverages
Methods of making modified condensation polymers
Methods of making modified condensation polymers
Poly(ethylene terephthalate) (PET) copolymers containing both 1,
Reactive anthraquinone colorant compounds and polymeric...
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