The Valspar Corp. said its board of directors has adopted a shareholder rights plan designed to protect the company against hostile takeovers and “further the long-term interests of Valspar shareholders.”

Ameron International has named Stephen F. Dickey president.

ThermaCell Technologies said it will close its American Paints operations and transfer the business’s coatings manufacturing functions to ThermaCell’s Atlas Chemicals facilities in Miami.

Elementis Specialties has appointed TMC Materials distributor of Rheox and Elementis Coatings & Additives products.

Elementis Specialties announced a name change for its Colorants & Additives business unit to Elementis Performance Additives.

Dunleary has been appointed distributor for J.M. Huber product line.

Dow Corning completed a $350-million expansion at its methyl-silane production facility in Barry, Wales.

Dominion Colour announced the completion of a major expansion of its Technical Services Laboratory.

Cimbar Performance Minerals has appointed Azalea Color distributor of Cimbar’s Organotrol organoclays.

Chemcentral and Holland Chemical International NV (HCI) announced plans to launch a new e-commerce business, Efodia.