Invention Grant
- Patent Title: Method for purifying contaminated polymers
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Application No.: US15190236Application Date: 2016-06-23
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Publication No.: US09890225B2Publication Date: 2018-02-13
- Inventor: John Moncrief Layman , Maggie Gunnerson , Hans Schonemann , Kara Williams
- Applicant: The Procter & Gamble Company
- Applicant Address: US OH Cincinnati
- Assignee: The Procter & Gamble Company
- Current Assignee: The Procter & Gamble Company
- Current Assignee Address: US OH Cincinnati
- Agent Brent M. Peebles
- Main IPC: C08J11/00
- IPC: C08J11/00 ; C08F6/00 ; B29B17/02 ; C08J11/08 ; C08G77/04 ; C08F6/02 ; C08F6/10

Abstract:
A method for purifying a reclaimed polymer, such as a polymer reclaimed from post-consumer use or post-industrial use, is disclosed. The method involves obtaining the reclaimed polymer and dissolving it in a solvent at an elevated temperature and pressure to produce a polymer solution, which is purified at an elevated temperature and pressure by contacting the polymer solution with solid media to produce a purer polymer solution. A purer polymer is then separated from the purer polymer solution.
Public/Granted literature
- US20170002110A1 Method For Purifying Contaminated Polymers Public/Granted day:2017-01-05
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