Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
Inventor
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Preparation of cellular polyurethane elastomers using polyether
Preparation of chlorofluorocarbon-free flexible polyurethane foa
Preparation of chlorofluorocarbon-free flexible polyurethane foa
Preparation of chlorofluorocarbon-free flexible polyurethane foa
Production of polyurethane foams in the presence of aminoalkyl-
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