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butyl rubber

British  

noun

  1. a copolymer of isobutene and isoprene, used in tyres and as a waterproofing material

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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Lanxess and Exxon Mobil Corp. are the two main producers of halogenated butyl rubber that makes radial tires that are replacing those requiring inner tubes in emerging countries.

From BusinessWeek • Nov. 18, 2011

Over these goes a thick coat of black glop -- industrial butyl rubber, used by roofers.

From Time Magazine Archive

The material that makes this possible is butyl rubber, a synthetic which has been in commercial production for only two years.

From Time Magazine Archive

Standard Oil's butyl rubber is also a butadiene from oil-cracking.

From Time Magazine Archive

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.