Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
Inventor
active
Aromatic diamines containing sulfonic acid aryl esters, a proces
Compounds containing hydroxyl groups and urethano-aryl-sulfonic
Compounds containing hydroxyl groups and urethano-aryl-sulfonic
Difunctional polymers with terminal hydrazide groups
High-impact polymer alloys
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