Phenol sulfide derivatives

Abstract

Abstract NOVEL PHENOLS OBTAINED BY REACTING A COMPOUND OF THE FORMULA I 1-A,2,4-DI(X-),3-R2,5-R1-BENZENE IN WHICH ONE X IS SELECTED FROM HYDROXYL GROUPS AND THE RESIDUES OF ESTERS OF PHOSPHORIC ACID AND OF PHOSPHORUS ACID AND THE OTHER X IS SELECTED FROM HYDROGEN ATOMS AND TERTIARY BUTYL RADICALS, EACH OF R1 AND R2 IS INDEPENDENTLY SELECTED FROM HYDROGEN ATOMS AND TETRIARY BUTYL RADICALS, A IS SELECTED FROM PHENYL RADICALS AND PHENYL RADICALS SUBSTITUTED BY UP TO 2 TERTIARY BUTYL RADICALS, WITH THE PROVISO THAT AT LEAST ONE OF R1 AND R2 MUST BE A TERTIARY BUTYL RADICAL AND WITH THE FURTHER PROVISO THAT AT MOST 3 TERTIARY BUTYL RADICALS MAY BE PRESENT PER MOLECULE; WITH A CONDENSING AGENT WHICH IS ADAPTED TO CAUSE LINKING BETWEEN PHENOL MOLECULES (E.G. SULPHUR MONOCHLORIDE, SULPHUR DICHLORIDE, PHOSPHORUS TRICHLORIDE OR FORMALDEHYDE WITH OR WITHOUT AN ALKYLENE MERCAPTAN) ARE DESCRIBED AND THEIR USE AS STABILIZERS AGAINST CERTAIN DETERIORATION PHENOMENA, ESPECIALLY ADVERSE EFFECT OF LIGHT, HEAT OR OXIDATION WITH ORGANIC MATERIALS, ESPECIALLY PLASTICS SUCH AS POLYPROPYLENE.

Inventors

• 👤 Kurt Hofer

Bibliographic Details