The use of a new low smoke, heat distortion temperature modifier for rigid PVC and chlorinated PVC is discussed. This material, CN-1427, is a tetrabromobisphenol A carbonate oligomer which is compatible with vinyl compositions. The carbonate oligomer can be compounded into PVC resin to improve heat distortion temperature of PVC and CPVC by 20â30Â°C.
Oppong is an Ashanti surname that originates in the Ashanti City-State. Notable people with the Ashanti surname include: Dominic Oppong (born 1986), Ghanaian-born Canadian soccer player.
THE OFFICIAL name is the at sign, from the same school of typographer's gobbledegook which gave us octothorpe (the #). This naming predates the use of @ by electronic mail systems the world over, and sadly produces many ambiguities when mail addresses are dictated over the phone.