Invention Grant
- Patent Title: Method for separating and purifying materials from a reclaimed product
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Application No.: US15839935Application Date: 2017-12-13
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Publication No.: US10435532B2Publication Date: 2019-10-08
- Inventor: John Moncrief Layman , Dimitris Ioannis Collias , 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 James E Oehlenschlager
- Main IPC: C08J11/08
- IPC: C08J11/08 ; C08J11/06

Abstract:
A method for separating and purifying polymers of a reclaimed product (rP) is disclosed. The rP is contacted at an elevated temperature and pressure, with an extraction solvent to produce an extracted rP (erP). A solvent, at conditions sufficient to solubilize the first polymer, contacts the erP to produce a solution, which is purified at an elevated temperature and pressure by contacting it with a solid medium to produce a purified solution of the first polymer. The purified polymer is then separated from the purified solution, and the method steps are repeated until all polymers are separated and purified.
Public/Granted literature
- US20180171097A1 Method For Separating And Purifying Materials From A Reclaimed Product Public/Granted day:2018-06-21
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