Subhankar Chatterjee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
Abstract: A composition comprising a condensation resin of the formula:R.sup.1 -A-Z[-A-Z'-].sub.n -R.sup.2wherein each A has the structure: ##STR1## and Y is a phenyl group or a methyl group; X is an alkylene group or an arylene group; R.sup.1 and R.sup.2 are each individually a C.sub.4 -C.sub.13 alkyl group, C.sub.4 -C.sub.12 alkyl group substituted with 1 or more hydroxy groups, or a combination thereof; n is 0, 1, or 2 provided that, when n is 0, then Z is a covalent bond, and when n is 1 or 2, then Z is a C.sub.4 -C.sub.13 alkylene group which is unsubstituted or substituted with 1 or more hydroxy groups; and Z' is the same as Z, a covalent bond or a derivative of the condensation resin. Along with an ink formulation comprising. The composition and method for preparing the above condensation resin having an increased softening temperature.
July 8, 1998
Date of Patent:
November 16, 1999
Sun Chemical Corporation
Subhankar Chatterjee, Joseph M. Laquidara, Albert A. Kveglis, Bhalendra J. Patel