Back to results
US 6,846,573 B2Granted
Moisture resistant, repulpable paper products and method of making same
AssigneeEvCo Research LLC
InventorScott O. Seydel
Life of this patent
Estimating the term…
Abstract
Hydrogenated triglycerides having melting points above 50° C. are substituted for paraffin as a coating material for the surface of paper products and the resulting paper products have improved wet strength and moisture resistance in addition to being repulpable thereby providing a distinct environmental advantage over paraffin coated products.
Claims9
A repulpable moisture resistant paper product comprising:
- a) a paper product having a surface;
- b) a coating on said surface, said coating consisting essentially of a hydrogenated triglyceride or a blend of natural, partially and fully hydrogentated triglycerides said coating having a minimum melting point of at least about 50° C.;
- c) said coating imparting improved moisture resistance and wet strength to said paper product;
- and
- d) said coated paper product being repulpable and recyclable.
2 more elements
The repulpable moisture resistant paper product wherein the melting point of the hydrogenated triglyceride is in the range from about 55° C. to about 65° C.
Dependencies are inferred from the claim text.