Rohm and Haas patents

August 10, 2007

Patent No. U.S. 7,166,667 B2
Rohm and Haas Company has obtained a patent for a method of forming at least one paint line comprised of providing a set of mutually compatible, water dispersible prepaints. It is comprised of at least one prepaint x, comprised of at least one opacifying pigment; at least one prepaint