Due to continued raw material cost pressure, Siegwerk will raise prices in its packaging market segments.

Imerys Performance Minerals North America announced price increases of 4-10 percent.

Imerys Performance & Filtration Minerals, formally World Minerals Inc., will raise prices for products shipped within North America effective November 1, 2011.

WACKER POLYMERS is raising its prices for VINNAPAS® vinyl acetate-ethylene and ethylene-vinyl chloride-based copolymer dispersions in the Americas.

LANXESS has increased prices by 5 percent for the product group sulfur chlorides, globally and with immediate effect.

Oxea will increase off-list prices on the products listed below effective October 1, 2011, or as contracts allow.

Effective October 1, 2011, or as contracts permit, Solvay Fluorides LLC will increase prices for all high-purity semiconductor grades of hydrogen peroxide.

Oxea will increase off-list prices on certain products effective Sept. 1, 2011, or as contracts allow.

PPG Industries' industrial coatings business is raising prices by an average of 8 to 12 percent on all coil and extrusion coating products in North America.