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
Bifunctional phenyl monophosphonic/sulfonic acid ion...
Bifunctional phenyl monophosphonic/sulfonic acid ion...
Grafted methylenediphosphonate ion exchange resins
Grafted methylenediphosphonate ion exchange resins
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