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US 4,536,333 AGranted
Method of polymerizing rosin
AssigneeUnion Camp Corporation
InventorJerome R. Olechowski
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Abstract
Formic acid is disclosed as a catalyst for polymerizing rosin. The discovery is the basis of a method for polymerizing rosin by heating the rosin in the presence of a catalytic proportion of formic acid. The catalyst is easily separated from the polymerized rosin for reuse.
Claims14
A method for the polymerization of rosin, which comprises;
- mixing catalytic proportions of a catalyst consisting essentially of formic acid with the rosin;
- and
- heating the mixture.
Dependencies are inferred from the claim text.