Abstract:
Non-toxic polymeric compositions suitable for use in the handling and packaging of foods, beverages or pharmaceuticals, or for use in medical devices, are stabilized against thermal and oxidative degradation with a organosulfide antioxidant represented by formula I, II or III having no more than 5 parts per million of free mercaptan groups.
Abstract:
A composition comprises a thermoplastic or polymeric resin; an organic peroxide; and an organic sulfide antioxidant represented by Formula I, II or III:
wherein m, n, R, R 1 , R 2 , R 3 , R 5 , R 6 , R 7 and R 8 are as set forth in the Summary of the Invention.
Abstract:
The present invention is a composition comprising crosslinked polyolefin resins and an amount of organic sulfide antioxidants sufficient to stabilize the resin against thermal or oxidative degradation, wherein the organic sulfide antioxidant is represented by Formula I, II or III
wherein m, n, R, R 1 , R 2 , R 3 , R S , R 6 , R 7 and R 8 are as set forth in the Summary of the Invention.
Abstract:
The present invention is directed to a composition comprising a polymeric engineering resin selected from the group consisting of polycarbonates, polyarylethers, polyamides, polyesters, polyacetals, polyaryl sulfides, cellulose esters and styrene copolymers; and an amount of an organic sulfide antioxidant sufficient to stabilize the resin against oxidative or thermal degradation during processing and use, the organic sulfide antioxidant being represented by Formula I, II, or III: wherein m, n, R, R¹, R², R³, R⁵, R⁶, R⁷ and R⁸ are as set forth in the Summary of the Invention.
Abstract:
Flame retardant compositions are provided containing at least one ester of a polyhaloaromatic acid and at least one polyolefin resin. The compositions may also contain one or more brominated and/or chlorinated compounds to provide additional flame retardancy, and other resins or engineering thermoplastics may be blended with the polyolefin. In addition to providing flame retardancy, the polyhaloaromatic acid esters are effective as processing and compatibilizing aids for the resin, and may also function as tackifiers, mold release agents, plastisols, adhesives, plasticizers, polymer additives, and aids in preventing melt fracture.