Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
Inventor
active
Carbodiimides based on...
Method of preparing compact or cellular polyurethane...
Microcellular polyurethane elastomer containing urea groups
Microcellular urea-containing polyurethane elastomer
Process for preparing compact or cellular polyurethane...
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