Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
Inventor
active
Curing agent for use in making cellular polyurethane composition
High resilience flexible foamed polyurethanes, foamable mixtures
HR foams made with reactive polyol compositions having improved
Low-cost surfactant compositions for high resiliency flexible fo
Modified polyisocyanate compositions and molded flexible polyure
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