Invention Grant
- Patent Title: Viscoelastic flexible foams comprising hydroxyl-terminated prepolymers
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Application No.: US16169323Application Date: 2018-10-24
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Publication No.: US10793692B2Publication Date: 2020-10-06
- Inventor: Nigel Barksby , Brian L. Neal
- 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: C08J9/02
- IPC: C08J9/02 ; C08G18/48 ; C08J9/00 ; C08J9/14 ; C08G101/00
Abstract:
This invention relates to a process for preparing viscoelastic flexible polyurethane foam comprising reacting an isocyanate component with an isocyanate-reactive component that comprises a polyol blend having a hydroxyl number of 56 to 250 and an average functionality of greater than 2, and a hydroxyl-terminated prepolymer. The invention also relates to viscoelastic flexible polyurethane foams.
Public/Granted literature
- US20200131327A1 VISCOELASTIC FLEXIBLE FOAMS COMPRISING HYDROXYL-TERMINATED PREPOLYMERS Public/Granted day:2020-04-30
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