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Any of several thermoplastic resins made from the polymerization of butene or isobutene. Polybutylene resins can be prepared in molecular weight ranges from 600 to 60,000. They have good toughness, flexibility and moisture barrier properties. Polybutylenes are used as lubricants, adhesives, sealants, films, coatings, polymer modifiers, and elastomers.
Synonyms and Related Terms
polybutene; polyisobutylene; polyisobutene; butyl rubber; polibutileno (Esp.); polibutilene (It.); polibutileno (Port.)
Examples: Vistanex [Exxon]
Physical and Chemical Properties
- Soluble in hexane, benzene, carbon tetrachloride.
- Insoluble in acetone, methanol, methyl acetate.
- Density = 0.91-0.93
Resources and Citations
- Theodore J. Reinhart, 'Glossary of Terms', Engineered Plastics, ASM International, 1988
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
- Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000