Invention Grant
- Patent Title: Method for the separation of volatile compounds from viscous products by means of a thin-film evaporator, and polylactide resin
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Application No.: US16346899Application Date: 2017-11-03
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Publication No.: US11447604B2Publication Date: 2022-09-20
- Inventor: Udo Mühlbauer , Rainer Hagen
- Applicant: UHDE INVENTA-FISCHER GMBH , thyssenkrupp AG
- Applicant Address: DE Berlin; DE Essen
- Assignee: UHDE INVENTA-FISCHER GMBH,thyssenkrupp AG
- Current Assignee: UHDE INVENTA-FISCHER GMBH,thyssenkrupp AG
- Current Assignee Address: DE Berlin; DE Essen
- Agency: thyssenkrupp North America, LLC
- Priority: EP16197639 20161108
- International Application: PCT/EP2017/078115 WO 20171103
- International Announcement: WO2018/086988 WO 20180517
- Main IPC: C08G63/90
- IPC: C08G63/90 ; B01D1/00 ; B01D1/06 ; C08G63/08 ; C08G63/78
Abstract:
A method for removing compounds in the gaseous aggregate state from PLA-containing products in the viscous aggregate state by means of a thin-film evaporator. The compounds may be present in the liquid or solid aggregate state in the products under standard conditions. The invention further relates to a polylactide resin prepared in accordance with the method of the invention.
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