Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
Inventor
active
Mainly closed cell phenolic foam and process for producing this
Method for preparing hard polyurethane and polyisocyanurate foam
Polyisocyanurate foam with chloropropane blowing agent
Substantially closed cell shaped hard phenol foam and method for
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Profile ID: LFUS-PAI-P-86733