Invention Grant
- Patent Title: Method for purifying contaminated polymers
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Application No.: US15190238Application Date: 2016-06-23
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Publication No.: US09695259B2Publication Date: 2017-07-04
- 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: C08F110/06
- IPC: C08F110/06 ; C08F110/02 ; C08F112/08 ; C08J11/08 ; C08G77/34 ; C08F6/12

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 contacting it at an elevated temperature and pressure with a fluid solvent to produce an extracted reclaimed polymer. The extracted reclaimed polymer is dissolved in a solvent at an elevated temperature and pressure to produce a polymer solution. A polymer is then separated from the polymer solution.
Public/Granted literature
- US20170002118A1 Method For Purifying Contaminated Polymers Public/Granted day:2017-01-05
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