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US 4,380,474 AGranted
Polyisocyanate reaction products
AssigneeSeton Company
InventorsGheorghe Cioca, Paul A. Fertell
Life of this patent
Estimating the term…
Abstract
An article of manufacture is comprised of the reaction product of a polyisocyanate and tanned leather scrap. The product is capable of being sawed and nailed in much the same manner and has similar characteristics to particle board.
Claims11
An article of manufacture comprising:
- a homogeneous admixture of chrome shavings and a polyisocyanate binder formed into a sheet.
An article of manufacture comprising the homogeneous admixture of chrome shavings and a binder formed into a sheet under heat and pressure.
Dependencies are inferred from the claim text.