Process | Application | ||
---|---|---|---|
P | Extrusion | 1 | Producing complex parts with close tolerance |
Q | Injection molding | 2 | Producing thermosetting plastic components |
R | Blow molding | 3 | Producing long uniform sections |
S | Compression molding | 4 | Producing hollow shapes |
List -I | List-II | ||
A | Buna-S | I | Vinyl chloride |
B | Neoprene | II | 1,3-Butadiene and styrene |
C | PVC | III | Tetra flouroethene |
D | Teflon | IV | Chloroprene |
Neoprene is formed from chloroprene. It is prepared by free radical polymerisation. The monomer of neoprene is chloroprene. It is used for preparing gaskets, conveyor belts etc.