Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
Inventor
active
Extruded propylene resin foam
Extruded propylene-resin composite foam
Foaming propylene copolymer, and foamed particles and foams ther
Multi-stage propylene polymer, process for producing the...
Propylenic copolymer and its film
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