Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
Examiner
active
No affiliations
Foamed isocyanate-based polymer, a mix and process for...
Froth and durable foam of dispersed olefin polymers, methods...
Polypropylene based resin composition, expanded moldings...
Process for the production of rigid and semi-rigid foams...
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