Back to results
US 8,557,954 B2Granted
Waterbased dimerized rosins and the process to make them
AssigneeLawter, Inc.
InventorsJohn Hazen, Ivo Kesselaer
Life of this patent
Estimating the term…
Abstract
The present invention relates to a method to prepare dimerized rosins dispersible in water in presence of extremely low level of dimerization acid catalyst. The present invention relates also to its use as a tackifier resin, solid or in water, and ink resin, and an adhesive composition and ink composition comprising the rosin resin.
Claims7
A method to produce a dimerized rosin comprising contacting a rosin with a catalyst comprising an alkyl substituted aryl sulfonic acid to produce the dimerized rosin containing the catalyst or a salt thereof, wherein the alkyl group has at least 5 carbon atoms.
Dependencies are inferred from the claim text.