This document discusses the history and production of rubber. It outlines how the first rubber factory was established in 1820 and vulcanization was invented and patented by Charles Goodyear in 1839-1844. The document also lists the major types of natural and synthetic rubbers like SBR, BR, and CR. It describes the polymerization processes used and components added to rubber compounds like fillers, curing agents, and antioxidants.

1. Dr. Farhan Saeed

2.  1820- 1st rubber factory by Thomas
Hancock
 1823-impermeable coats by Charles
Macintosh
 1832-the Roxbury India Rubber Factory
 Charles Goodyear
◦ 1839-vulcanisation
◦ 1843-patent filing
◦ June 1844-patent date
Hevea brasiliensis treeCollection of rubber latexTapping of trees

6.  Latex
 Natural rubber
 Synthetic rubbers
◦ SBR Styrene butadiene rubber
◦ BR Polybutadiene rubber
◦ CR Polychloroprene rubber
◦ IR Polyisoprene rubber
◦ IIR Isoprene Isobutylene rubber
◦ EPDM Ethylene propylene diene rubber
◦ NBR Acrylonitrile butadiene rubber

10.  Solution polymerization
 Emulsion polymerization
 Hot polymerization
 Cold polymerization
 Oil extended
 Non-oil extended
Styrene contents

13.  Fillers
 Curing agents
 Accelerators
 Activators
 Antidegradants
 Processing aids
 Blowing agents
 Retarders
 Colourants