Chemidex Inc. has named Jerry Williams, former VP-Corporate Business/Account Development at CHEMCENTRAL, as its vice president of sales.

Sealant Equipment & Engineering, Inc. has announced that its ISO certification for Precision Manufacturing of Meter/Mix/Dispense equipment has been upgraded to ISO 9001:2000 - the latest ISO standard for quality management systems.

Air Products and Chemicals, Inc. has announced the sale of its MDI (methylene-diphenylene isocyanate) Business to ITWC, a Malcom, Iowa-based company that is a leading supplier of prepolymers, systems and equipment to the urethane industry.

Sika Corp. has named William E. Loven to the Extended Group Management of the Sika Group.

Nordson Corp. has appointed Patrick Keogh Director of Global Sales of Nordson UV, Inc.

Avery Dennison Corp. has reported fourth quarter 2003 diluted earnings per share of $0.59, compared with $0.56 per share for the prior-year fourth quarter.

DEK has announced representative changes in its Pacific Northwest and Southern California regions.

Degussa has announced the appointment of Jeffrey Landau to the position of marketing manager, Architectural Colorants, effective Dec. 15, 2003.

Two well-established WACKER brands, SILRES and WACKER BS, have been incorporated into a comprehensive portfolio of materials for building and coatings solutions.

Nordson Corp. has named Dave Petteplace general sales manager responsible for the sales and service operations of the company's Packaging and Product Assembly (PPA) and Paper and Paperboard Converting (PPC) business groups throughout western and central Canada.