Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
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Esterfied, polyester-grafted starch
Esterified, polyvinyl ester-grafted starch
Method for producing starch esters, starch esters, and starch es
Polyester-grafted starch-polymer alloy
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