Method for purifying contaminated polyethylene

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9803035
APP PUB NO 20170002111A1
SERIAL NO

15190248

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Abstract

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A method for purifying reclaimed polyethylene, such as polyethylene reclaimed from post-consumer use or post-industrial use, is disclosed. The method involves obtaining the reclaimed polyethylene and contacting it at an elevated temperature and pressure with a fluid solvent to produce an extracted reclaimed polyethylene. The extracted reclaimed polyethylene is dissolved in a solvent at an elevated temperature and pressure to produce a polyethylene solution, which is purified at an elevated temperature and pressure by contacting the polyethylene solution with solid media to produce a purer polyethylene solution. A purer polyethylene is then separated from the purer polyethylene solution.

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Patent Owner(s)

  • THE PROCTER & GAMBLE COMPANY;THE PROCTER & GAMBLE PLAZA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gunnerson, Maggie Cincinnati, US 10 96
Layman, John Moncrief Liberty Township, US 50 400
Schonemann, Hans Newburyport, US 32 259
Williams, Kara South Meymouth, US 21 205

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