US investment fund APPOLO MANAGEMENT will be buying out US pharmaceutical firm BORDEN CHEMICALS for USD 655 million. the latter is owned by KKR-KOHLBERG KRAVIS ROBERTS. APPOLO will also take over BORDEN CHEMICALS' debt, which is around USD 545 million. Specialised in resins, glues and repair materials, BORDEN obtained a turn-over of USD 1.4 bn in 2003.