Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From reactant having at least one -n=c=x group as well as...
Inventor
active
Composition and process for preparation of thermoplastic polyure
Hydrophobic light stable polyurethane elastomer with...
Hydrophobic polyurethane elastomer
Polyurethane polyolefins and prepolymers based on hydroxy functi
Process for preparing a photochromic lens
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