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butyl rubber
(redirected from Polyisobutylene)

   Also found in: Acronyms, Encyclopedia, Wikipedia 0.01 sec.
butyl rubber
n.
A synthetic rubber produced by copolymerization of a butylene with isoprene, nearly impermeable to air and used in tires, inner tubes, and insulation.

butyl rubber
n
(Engineering / Chemical Engineering) a copolymer of isobutene and isoprene, used in tyres and as a waterproofing material
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.butyl rubber - synthetic rubber made by polymerizing isobutylene
synthetic rubber, rubber - any of various synthetic elastic materials whose properties resemble natural rubber


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A key characteristic of the family of isobutylene-based polymers, polyisobutylene homopolymer, butyl rubber (isobutylene-isoprene copolymers), halobutyl rubber (brominated or chlorinated butyl rubber) and Exxpro (brominated isobutylene-paramethyl styrene copolymers), is their low permeability combined with a low glass transition temperature, [T.
Fuller Company has made plans to invest further in its Asia Pacific region operations through the building of a new hot melt moisture cure (HMMC) and polyisobutylene (PIB) manufacturing facility in China.
David Marshal, director of new business development, says the new Sibstar TPVs are silane-crosslinked polyisobutylene (PIB) in PP or HDPE matrices.
 
 
 
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