Filled elastomeric butyl compounds with improved scorch safety
AssigneeBayer Aktiengesellschaft
InventorsRui Resendes, William Hopkins
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Abstract
The present invention provides a process for preparing a filled halobutyl elastomer, which includes mixing a halobutyl elastomer, particles of filler an additive containing both amino and alcohol functional groups, and one or more hydrated metal halogens and optional curing the filled elastomer with sulfur or other curative systems. The compositions of the present invention have improved properties when compared to known carbon black-filled halobutyl elastomeric compositions combined with an enhanced scorch safety. This present 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.
Claims16
A process for preparing a filled halobutyl elastomer comprising admixing a halobutyl elastomer, particles of filler, an organic compound which has at least one hydroxyl group and one basic nitrogen-containing group, and one or more hydrated metal halogens, and curing the resulting filled brominated butyl elastomer.
A filled, halobutyl elastomer composition comprising at least one halobutyl elastomer, particles of filler, at least one an organic compound which has at least one hydroxyl group and one basic nitrogen-containing group, and one or more hydrated metal halogens.
Dependencies are inferred from the claim text.