Filled elastomeric butyl compounds with improved scorch safety

Details Filled elastomeric butyl compounds with improved scorch safety Filled elastomeric butyl compounds with improved scorch safety

C - Chemistry, Metallurgy

08

K

C08K 5/36 (2006.01) C08K 3/16 (2006.01) C08K 5/17 (2006.01)

Patent

CA 2364174

The invention provides a process for preparing a filled halobutyl elastomer, which comprises mixing a halobutyl elastomer, particles of filler an additive containing both amino and alcohol functional groups, and one or more hydrated metal halogenides and optional curing the filled elastomer with sulfur or other curative systems. Those compositions have improved properties when compared to known carbon black-filled halobutyl elastomeric compositions combined with an enhanced scorch safety. This invention has the advantages of (a) not evolving alcohol either during the manufacture or subsequent use of the article manufactured from the compound, and (b) maintaining good processability of the compound.

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