Acetylene
Acetylene is a colorless gas and the simplest and best-known member of the hydrocarbon series (molecules containing one or more pairs of carbon atoms linked by triple bonds), called the acetylenic series or alkynes. Explosive on contact with air, it is stored dissolved under pressure in acetone and used to make neoprene rubber, plastics, and resins. In metal welding, the oxyacetylene torch mixes and burns oxygen and acetylene to produce a very hot flame (as high as 6300°F).
Nylon
Nylon, a synthetic thermoplastic material introduced in 1938, is a strong elastic, resistant to abrasion and chemicals and low in moisture absorbency.
Polymers
Polymers are any of a class of natural or synthetic substances composed of very large molecules called macromolecules that are multiples of simpler chemical units called monomers. Polymers make up many of the materials in living organisms, including, for example, proteins, cellulose, nucleic acids, natural rubber and silk. Those synthesized in the laboratory have led to such commercially important products as plastics, synthetic fibers and synthetic rubber.
