Possehl Group, parent of Harburg-Freudenberger Maschinenbau GmbH, buys the rubber and plastics mixing equipment division of Italy's Techint-Pomini.
Bluestar Silicones is the new name of the former Rhodia silicones business, purchased by a Chinese entity.
Dow Chemical Co.'s Dow Polyurethanes business unit acquires two British Vita P.L.C. subsidiaries, Hyperlast Ltd. and Autothane Ltd., to expand its European technology and customer base. It also buys Edulan A.S., a Danish independent polyurethane systems house.
Columbian Chemicals (Weifang) Holdings S.a.r.l. concludes its acquisition of Shandong Haihua Carbon Black Chemical Co. Ltd. in Weifang, China.
Dyna-Mix Inc. acquires Midwest Custom Mixing Inc. to bolster and complement the company's mixing capabilities.
Excel Polymers L.L.C. purchases Vita-Calender, a specialized rubber processing operation, from British Vita.
Chemtura Corp. sells its organic peroxides business and Marshall, Texas, factory to German organic peroxides maker Pergan GmbH.
Hexagon Polymers A.B. purchases Gold Key Processing Ltd. to boost its offerings in North America and overseas.
Nordson Corp. acquires TAH Industries Inc., which makes motionless mixer dispensing systems for two-component adhesives and sealants, for $45 million.
DSM N.V. said it will sell its EPDM rubber and thermoplastic elastomers businesses, as well as its melamine, urea and maleic anhydride assets.
Acrolab Ltd. licenses the rights to its Isobar super thermal conductors and Isoplatens for use in rubber molding and processing to French Oil Mill Machinery Co.
Eliokem S.A.S. purchases the Polymer Division of India's Apar Industries Ltd. for about $27.5 million to expand its synthetic polymer business.
OM Group Inc. of Cleveland becomes the owner of Borchers GmbH's additives business, buying the operation from Lanxess A.G. for about $18.7 million.
Coim USA Inc. agrees to buy Inolex Chemical Co.'s Lexorez and Lexad polyester polyols business for an undisclosed amount.