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US 3,939,170 AGranted
Dehydro pyridinyl sulfides, sulfoxides and sulfones
AssigneeCiba-Geigy Corporation
InventorsDonald Richard Randell, Malcolm John Smith
Life of this patent
Estimating the term…
Abstract
Compounds having the formula ##SPC1## Where X is S, SO or SO.sub.2 and Y and Y.sup.1 are the same or different and each is H, OH, O.sup.. or a straight- or branched alkyl residue having from 1 to 4 carbon atoms, and salts thereof when Y and Y.sup.1 are other than O.sup.. are useful as stabilisers for organic materials such as diene rubbers.
Claims10
A compound having the formula:
- ##SPC5##
- wherein X is S, SO or SO.sub.2 and Y and Y.sup.1 are the same or different and each is H, OH, O or a straight- or branched alkyl having from 1 to 4 carbon atoms, and salts thereof when Y and Y.sup.1 are other than O, said salts being formed with the acids selected from hydrogen chloride, sulfuric acid, phosphoric acid, carbonic acid, acetic acid, maleic acid, oxalic acid and tartaric acid.
Dependencies are inferred from the claim text.