Singly-terminated polyisobutylenes and process for making same

C - Chemistry – Metallurgy – 08 – F

Patent

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Details

C08F 8/00 (2006.01) C08F 8/06 (2006.01) C08F 8/14 (2006.01) C08F 8/20 (2006.01) C08F 8/32 (2006.01) C08F 10/10 (2006.01)

Patent

CA 2691087

The present invention generally relates to singly-terminated polyisobutylene (PIB) compounds, and to a process for making such compounds. In one embodiment, the present invention relates to singly-terminated polyisobutylene compounds that contain only one primary alcohol, amine, or methacrylate group as the single- terminating group. In another embodiment, the present invention relates to singly-terminated polyisobutylenes carrying exactly one terminal alcohol, amine, or methacrylate group, where such singly-terminated polyisobutylenes have a number average molecular weight of about 500 to about 5000 grams per mole. In still another embodiment, the present invention relates to singly-terminated polyisobutylene compounds that can be used to synthesize polyurethanes, to polyurethane compounds made via the use of such polyisobutylene compounds, and to processes for making such compounds.

La présente invention concerne d'une façon générale des composés de polyisobutylène (PIB) à terminaison unique et un procédé servant à fabriquer de tels composés. Dans un mode de réalisation, la présente invention concerne des composés de polyisobutylène à terminaison unique qui ne contiennent qu'un groupe alcool primaire, amine ou méthacrylate en tant que groupe terminal unique. Dans un autre mode de réalisation, la présente invention concerne des polyisobutylènes à terminaison unique portant exactement un groupe alcool, amine ou méthacrylate terminal, de tels polyisobutylènes à terminaison unique ayant une masse moléculaire moyenne en nombre d'environ 500 à environ 5000 grammes par mole. Dans encore un autre mode de réalisation, la présente invention concerne des composés de polyisobutylène à terminaison unique qui peuvent être utilisés pour synthétiser des polyuréthanes, des composés de polyuréthane fabriqués via l'utilisation de tels composés de polyisobutylène et des procédés servant à fabriquer de tels composés.

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