C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 136/06 (2006.01) C08C 19/14 (2006.01) C08F 8/18 (2006.01) C08L 47/00 (2006.01) E04D 3/02 (2006.01) E04D 5/06 (2006.01)
Patent
CA 2072284
A substituted polybutadiene polymer and a composition containing the polymer which is suitable for use in a flat sheet material such as a roofing membrane is disclosed. The polymer has a superior filler capacity, excellent flame resistivity and acceptable heat aging properties, especially heat aged elongations. The composition, which includes the polymer of the present invention and from about 5 to about 160 parts by weight of a filler material per 100 parts polymer, is self-adhering without the use of an adhesive and is heat seamable to produce seams which are resistant to temperatures as high as 100~C.
Polybutadiène de substitution et composition renfermant le polymère et pouvant être utilisée pour la fabrication de matériaux en feuille, par exemple du revêtement d'étanchéité pour couvertures. Le polymère de cette invention possède une aptitude supérieure au mélange avec une charge, une excellente tenue aux flammes et une bonne résistance au vieillissement sous l'action de la chaleur, en particulier quant à l'allongement. La composition de cette invention renferme environ 5 à environ 160 parties d'une matière de charge par 100 parties de polymère, en poids. Elle est auto-collante et thermosoudable, formant des joints résistants à des températures pouvant atteindre les 100 oC.
Davis James A.
Hergenrother William L.
Mcgillvary Daniel R.
Valaitis Joseph K.
Bridgestone Corporation
Bridgestone/firestone Inc.
Swabey Ogilvy Renault
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