US2010331454A1PendingUtilityA1

Modified epoxy resins comprising the reaction product of a biomass derived compound and an epoxy resin, and aqueous dispersions and coatings comprising such resins

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Assignee: PPG IND OHIO INCPriority: Jul 20, 2007Filed: Sep 7, 2010Published: Dec 30, 2010
Est. expiryJul 20, 2027(~1 yrs left)· nominal 20-yr term from priority
Inventors:David R. FennGeoffrey R. WebsterGregory J. Mccollum
C08L 63/00
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Claims

Abstract

Modified epoxy resins comprising the reaction product of a cycloaliphatic, polycyclic and/or aromatic biomass derived compound and an epoxy resin are disclosed. Aqueous dispersions and coatings comprising these reaction products are also disclosed.

Claims

exact text as granted — not AI-modified
1 . A modified epoxy resin comprising the reaction product of a cycloaliphatic, polycyclic and/or aromatic biomass derived compound having less than two epoxy reactive functional groups and an epoxy resin. 
     
     
         2 . The resin of  claim 1 , wherein the biomass derived compound comprises rosin. 
     
     
         3 . The resin of  claim 1 , wherein the biomass derived compound comprises cardanol. 
     
     
         4 . The resin of  claim 1 , wherein the biomass derived compound comprises a cycloaliphatic moiety. 
     
     
         5 . The resin of  claim 1 , wherein the biomass derived compound comprises a polycyclic moiety. 
     
     
         6 . The resin of  claim 1 , wherein the biomass derived compound comprises an aromatic ring. 
     
     
         7 . The polymer of  claim 1 , wherein the epoxy resin comprises the diglycidyl ether of bisphenol A. 
     
     
         8 . An aqueous dispersion comprising the resin of  claim 1 . 
     
     
         9 . An aqueous dispersion comprising the resin of  claim 2 . 
     
     
         10 . An aqueous dispersion comprising the resin of  claim 3 . 
     
     
         11 . An aqueous dispersion comprising the resin of  claim 7 . 
     
     
         12 . A coating comprising the resin of  claim 1 , wherein the coating is not a cationic ecoat. 
     
     
         13 . The coating of  claim 12 , wherein the coating comprises a colorant. 
     
     
         14 . The coating of  claim 12 , wherein the coating is substantially clear. 
     
     
         15 . The coating of  claim 12 , wherein the coating is a two component coating, and the modified epoxy resin is in one component and a curing agent for the modified epoxy rosin is in another component. 
     
     
         16 . A cationic electrodepositable coating composition comprising a modified epoxy resin comprising the reaction product of a cycloaliphatic, polycyclic and/or aromatic biomass derived compound having less than two epoxy reactive functional groups and an epoxy resin, wherein the biomass derived compound does not comprise rosin and/or a residue of rosin that forms part of the cationic resin backbone. 
     
     
         17 . The coating of  claim 16 , wherein the biomass derived compound comprises cardanol and/or a residue of cardanol.

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