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Rohm and Haas patents improved coating.(Patents Update)

Patent No. U.S. 6,939,922 B2

Rohm and Haas has received a patent for an improved coating comprised of a coating composition, and crosslinked polymeric nanoparticles (PNPs) having a mean diameter of two to nine nanometers. The PNPs are comprised as polymerized units at least one multi-ethylenically-unsaturated monomer; wherein the PNPs comprise as polymerized units at least 10 weight percent of units derived from at least one multi-ethylenically-unsaturated

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