Rubber (chlorinated)

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Description

An odorless, pale yellow resin prepared by adding up to 65% chlorine to an elastomer, such as natural rubber, Butyl rubber, or styrene-butadiene. Chlorination of rubber allwed it to cure very fast and allowed the copolymerizaqtion of natural and synthetic rubbers. Chlorinated rubber produces a hard tough, glossy film. It was used primarily in the 1950s -60s for paints, varnishes, adhesives, inks and paper coatings. Chlorinated rubber is still used for waterproof paints on floors and swimming pools. It is very resistant to chemicals and moisture.

Synonyms and Related Terms

chlorinated rubber; Chloroprene; Neoprene; caucho clorado (Esp.); borracha clorada (Port.)

Examples: Parlon; Hypalon

Other Properties

  • Soluble in toluene, ethylene dichloride. Insoluble in aliphatic and alcohols.
  • Resistant to acids and alkalis.
  • Density = 1.64

Risks

Nonflammable. Reacts violently when heated with zinc oxide.

Comparisons

Physical Properties for Selected Thermoset Resins

General Characteristics of Polymers

Resources and Citations

  • R. J. Gettens, G.L. Stout, Painting Materials, A Short Encyclopaedia, Dover Publications, New York, 1966
  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Thomas J.S. Learner, Analysis of Modern Paints, Getty Conservation Institute, Los Angeles, 2004 Comment: p. 23

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