4. Synthetic resins or natural rubbers -- part of the class 520 ser
  5. Synthetic resins
  6. Processes of preparing a desired or intentional composition...

Paul S. L. Chan

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Foundry mixes and their uses

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent

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NCO-free resins useful as a substitute for polyurethanes

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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