公开(公告)号：US20200270391A1

公开(公告)日：2020-08-27

申请号：US16063952

申请日：2016-12-19

Applicant: Pranaya Man Singh PRADHAN ,  Eswaramurthi NACHIAPPAN ,  Michiel Barend ELEVELD ,  Prem Kumar DHANAPAL

Inventor： Pranaya Man Singh PRADHAN ,  Eswaramurthi NACHIAPPAN ,  Michiel Barend ELEVELD ,  Prem Kumar DHANAPAL

IPC: C08G18/48 ,  C08G18/76

Abstract: A process for the production of a polyurethane foam having a resilience of at least 50%, said process comprising reacting (i) a first polyether polyol comprising polyether chains containing no more than 20% ethylene oxide content, and having a primary hydroxyl content of no more than 25%; (ii) a second polyether polyol comprising polyether chains containing at least 50% ethylene oxide content; and (iii) one or more aromatic polyisocyanates, in the presence of one or more catalysts having gelling and/or blowing activities.