Method for reducing odors in recycled plastics and compositions relating thereto
AssigneeE. I. Du Pont de Nemours and Company
InventorsDonna L. Visioli, Vincent Brodie, III
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Abstract
The present invention relates generally to recycled plastics which exhibit noxious odors. More specifically, the present invention is directed to a method of reducing unwanted odors in such recycled plastics by incorporating a polyalkylene imine ("PAI"), more preferably polyethylene imine ("PEI").
Claims8
A method for reducing aldehyde odor of a recycled polymeric material, said method comprising the step of incorporating into the recycled polymeric material a polyalkylene imine.
A composition comprising a blend of a recycled polymeric material comprising an aldehyde and polyalkylene imine.
A process of combining polyalkylene imine ("PAI") with a recycled polymer material, said process comprising the steps of:
- mixing the components at a temperature sufficient to cause the PAI to form a dispersed phase defining microscopic particles of less than 10 microns.
Dependencies are inferred from the claim text.