Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
Inventor
active
Blowing agents for polyurethane foam
Density reduction in flexible polyurethane foams
Filled detergent foam made by a one shot process
Ignition resistant polyurethane foams with melamine
Intumescent flexible polyurethane foam
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