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polyisobutylene
polyisobutylene n. 
/ˌpɒlɪʌɪsə(ʊ)ˈbjuːtl̩iːn/,
Brit. /ˌpɒlɪʌɪsə(ʊ)ˈbjuːtᵻliːn/
, /ˌpɒlɪʌɪsə(ʊ)ˈbjuːtᵻliːn//ˌpɒlɪʌɪsə(ʊ)ˈbjuːtl̩iːn/U.S. /ˌpɑliˌaɪsoʊˈbjudlˌin/
a polymer of isobutylene; (also) any of a large class of synthetic rubbers consisting of or made from such polymers./ˌpɑliˌaɪsoʊˈbjudlˌin/ΘΚΠ
the world > matter > chemistry > polymer chemistry > rubbers (named) > [noun]
ebonite1861
factice1893
methyl rubber1919
chloroprene1931
polychloroprene1931
polyisobutylene1931
polybutadiene1935
polyisoprene1935
neoprene1937
polyesteramide1943
polydiene1946
Silastic1946
society > occupation and work > materials > derived or manufactured material > synthetic resins and plastics > [noun] > synthetic rubber > specific
methyl rubber1919
Thiokol1930
polychloroprene1931
polyisobutylene1931
polybutadiene1935
polyisoprene1935
polysulphide1935
Buna1936
neoprene1937
Perbunan1938
butyl rubber1940
camel-back1942
polyesteramide1943
polydiene1946
nitrile rubber1947
cold rubber1948
SBR1956
Spandex1959
nitrile1983
1931 Jrnl. Physical Chem. 35 1893 (table) Polyisobutylene.
1966 Economist 1 Oct. 84/3 Later the two companies may co-operate in making polyisobutylene, plastic foam and other products.
1995 Chem. in Brit. Sept. 667/4 Exxon Chemical is expanding its Vistanex low molecular weight polyisobutylene capacity at its New Jersey..facilities.
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