Cincinnati--Procter & Gamble Co. and DuPont have invested cash and intellectual property in Packtion Corp., a Chicago-based online solution provider for the global b-to-b packaging industry. Financial amounts and intellectual property details were not disclosed. The deal underscores P&G's deepening involvement in b-to-b, and highlights its willingness to contribute its know-how to its Internet investments. The consumer products company recently invested not only its money, but also its best marketing practices to Project EMM, a company it is forming with Magnifi Inc. Such deals run counter to P&G's corporate legacy of secretiveness. DuPont, too, is increasing its b-to-b presence. The Wilmington, Del.-based company has struck Web deals with Internet Capital Group Inc. and Cargill Inc. Packtion was founded in April 2000 by Morgan Stanley Dean Witter Private Equity and DiamondCluster International Inc.