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US 4,300,955 AGranted
Process for removing a resinous coating from fiberglass products
OwnerJohn W. Yountinventor
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Abstract
A coating of urea-formaldehyde resin is removed from spun fiberglass with an aqueous phosphoric acid solution. The fiberglass product is subsequently rinsed, dried and chopped for reuse.
Claims6
A reclaiming process for removing a ureaformaldehyde type resin coating from spun fiberglass products comprising:
- dipping said coated products into a solution of water and phosphoric acid;
- removing said product from said solution;
- rinsing said product to remove any solution and resin residues;
- and drying said product whereby waste resin treated fiberglass can be reclaimed and reused as a virgin fiberglass product.
1 more element
Dependencies are inferred from the claim text.