Invention Grant
- Patent Title: Polyols suitable for hot molded foam production with high renewable resource content
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Application No.: US13641890Application Date: 2011-04-15
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Publication No.: US10323212B2Publication Date: 2019-06-18
- Inventor: Stanley L. Hager , Micah N. Moore , Jack R. Reese , Brian L. Neal
- Applicant: Stanley L. Hager , Micah N. Moore , Jack R. Reese , Brian L. Neal
- Applicant Address: US PA Pittsburgh
- Assignee: Covestro LLC
- Current Assignee: Covestro LLC
- Current Assignee Address: US PA Pittsburgh
- Agent Donald R. Palladino
- International Application: PCT/US2011/000685 WO 20110415
- International Announcement: WO2011/133208 WO 20111027
- Main IPC: C11C3/00
- IPC: C11C3/00 ; C11C3/04 ; C08G18/36 ; C08G18/40 ; C08G18/48 ; C08G65/26 ; C08G101/00

Abstract:
Polyols are produced by an alkoxylation process in which a vegetable oil containing hydroxyl functional groups is combined with a DMC catalyst to form a mixture, the DMC catalyst is then activated by adding ethylene oxide and/or propylene oxide to the vegetable oil/catalyst mixture, and ethylene oxide and propylene oxide are added to the mixture containing activated DMC catalyst in amounts such that the total of percentage of ethylene oxide in the polyol plus percentage of primary hydroxyl groups in the polyol produced is from 50 to 77% and the percentage of primary hydroxyl groups is at least 30% but less than 50%. These polyols are useful for the production of molded polyurethane foams, particularly, hot-cure molded polyurethane foams.
Public/Granted literature
- US20130210951A1 POLYOLS SUITABLE FOR HOT MOLDED FOAM PRODUCTION WITH HIGH RENEWABLE RESOURCE CONTENT Public/Granted day:2013-08-15
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