Back to results
US 4,010,129 AGranted
Novel processing aids for natural and synthetic rubber compounds
AssigneeTechnical Processing, Inc.
InventorErwin Aron
Life of this patent
Estimating the term…
Abstract
Compositions containing salts of aromatic sulfonic acids, long chain fatty acids and thioethers are useful in the processing of natural and synthetic rubber by permitting the usual peptizing step of such processing to be omitted.
Claims8
An improved rubber processing aid comprising:
- a. an alkali or amine salt of an aromatic sulfonic acid having the formula:
- ##STR2## where X is hydrogen or alkyl of from 4 to 14 carbon atoms and n has a value of from 1 to 5, and
- b. optionally a long chain fatty organic acid having a maximum of about 22 carbon atoms in the chain
- the improvement wherein the amount by weight of said fatty acid present is less than the amount by weight of said sulfonic acid salt, and said processing aid includes a thioether in an amount sufficient to catalyze the peptizing action of said salt.
1 more element
Dependencies are inferred from the claim text.