Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
Inventor
active
Amine-initiated polyether polyols and a process for their...
Composition and process for preparation of thermoplastic polyure
High resilient flexible urethane foam and flexible molded...
Hydrophobic light stable polyurethane elastomer with...
Hydrophobic polyurethane elastomer
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