METHODS OF VULCANIZING ELASTOMERS USING TALL OIL HEADS

摘要

Tall oil heads may be used in lieu of, or in combination with, conventional fatty acids in the compounding and curing of vulcanizable rubber. Tall oil heads inherently contain a significant amount of neutral materials, and their incorporation into a pre-vulcanized rubber composition allows the compounder to incorporate less aromatic oil into the composition. The composition may be made by a method comprising compounding a mixture comprising a vulcanizable elastomer, a sulfur source, and Tall Oil Heads (TOH), the TOH comprising 40-75 wt% fatty acids and greater than 10 wt% neutral materials, and heating the compounded mixture to a temperature sufficient to cause substantial crosslinking of the elastomer.