Polymers stabilized with polyesters of thiodipropionic acid

Abstract

Abstract POLYMERIC COMPOSITIONS ARE PROVIDED WHICH HAVE INCREASED STABILITY AGAINST DETERIORATION IN PHYSICAL PROPERTIES OVER LONG PERIODS OF TIME DUE TO THE PRESENCE OF POLYMERIC ESTERS OF THIODIPROPIONIC ACID AND POLYOLS. THE POLYMERIC MATERIALS CONTAINING THE POLYESTERS OF THIODIPROPIONIC ACID AND POLYOLS, AS WELL AS A PROCESS FOR STABILIZING POLYMERIC MATERIALS BY INCORPORATING SUCH POLYESTERS THEREIN ARE CLAIMED. THE POLYESTERS OF THIODIPROPIONIC ACID AND A POLYOL HAVE THE FORMULA: Z1(OY)N1(OOCCH2CH2SCH2CH2COOYO)N2 (OCCH2CH2SCH2CH2COO)N3Z2 IN WHICH: Z1 AND Z2 ARE SELECTED FROM THE GROUP CONSISTING OF HYDROGEN; A POLYVALENT METAL M OF GROUP II OF THE PERIODIC TABLE; A GROUP R SELECTED FROM THE GROUP CONSISTING OF HYDROCARBON RADICALS, OXYHYDROCARBON RADICALS, AND THIOHYDROCARBON RADICALS HAVING FROM ONE TO TWENTYL CARBON ATOMS; A GROUP R3CO, WHERE R3 IS A HYDROCARBON OR EPOXYHYDROCARBON GROUP HAVING FROM ONE TO TWENTY CARBON ATOMS; AND YOH; Y IS SELECTED FROM THE GROUP CONSISTING OF BIVALENT HYDROCARBON, OXYHYDROCARBON, AND THIOHYDROCARBON GROUPS HAVING FROM TWO TO TWENTY CARBON ATOMS. THE Y BIVALENT RADICAL CAN BE FOR EXAMPLE ALKYLENE, ALKENYLENE, CYCLOALKYLENE, ALKYLENE-OXYALKYLENE, MIXED ALKYLENECYCLOALKYLENE; OXYALKYLENE; AND THIOALKYLENE. N2 IS A NUMBER WITHIN THE RANGE FROM ONE TO ABOUT TWENTY; N1 AND N3 ARE ZERO OR ONE, AND N2+N3 IS AT LEAST TWO.

Inventors

• 👤 Otto S Kauder

Bibliographic Details