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 name may also derive from a Germanic personal name composed of the elements blanc, shining, white, beautiful, plus the second element -hard brave, hardy, strong. Hence the name may have been given to a person with the above characteristics. The personal name was recorded in 1180, in the Pipe Rolls of Devonshire when one Blanchard de Morba is mentioned. One William Blanchart was recorded in 1198, in the Pipe Rolls of Lincolnshire. William Isaac Blanchard (d. 1796) published two original systems of stenography.