Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
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active
Amidine-metal complexes and their use as catalysts for isocyanat
Polyisocyanate mixtures containing isocyanurate groups, a proces
Process for the preparation of liquid storable organic isocyanat
Process for the preparation of substantially closed-cell rigid f
Process for the production of inorganic-organic synthetic foam m
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