Invention Grant
- Patent Title: Process for preparing polyoxyalkylene polyols by the continuous addition of starter
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Application No.: US16225549Application Date: 2018-12-19
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Publication No.: US10961347B2Publication Date: 2021-03-30
- Inventor: Edward P. Browne , Anthony R. Loveday , Jose F. Pazos
- Applicant: COVESTRO LLC
- Applicant Address: US PA Pittsburgh
- Assignee: COVESTRO LLC
- Current Assignee: COVESTRO LLC
- Current Assignee Address: US PA Pittsburgh
- Agent N. Denise Brown
- Main IPC: C08G65/12
- IPC: C08G65/12 ; C08G65/26
Abstract:
This invention relates to an improved process for the preparation of a high molecular weight polyoxyalkylene polyether polyol by the continuous addition of starter (CAOS) process. This process enables a shorter cycle time while maintaining a low viscosity in high molecular weight polyoxyalkylene polyether polyols.
Information query
IPC分类:
