Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
Inventor
active
Microcellular polyurethane elastomer containing urea groups
Microcellular urea-containing polyurethane elastomer
Prepolymers containing isocyanate groups and a method for...
Production of rigid foams based on isocyanate
Production of rigid foams based on isocyanate
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