Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
Inventor
active
Modified rosin esters and their use in printing inks
Modified rosin esters and their use in printing inks
Modified rosin esters and their use in printing inks
Modified rosin esters and their use in printing inks
Modified rosin esters and their use in printing inks
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