发明名称 |
PROCESS FOR PRODUCING POLYETHER POLYOL, PROCESS FOR PRODUCING FLEXIBLE POLYURETHANE FOAM, AND SHEET |
摘要 |
To suppress deterioration of mechanical properties of a foam, by using a polyol system solution stored. A polyol system solution is prepared by using a polyether polyol (A1) having a hydroxy value of from 5 to 45 mgKOH/g and an average number of hydroxy groups of from 2 to 8, obtainable by subjecting an alkylene oxide to ring-opening addition polymerization to an initiator, in the presence of a double metal cyanide complex catalyst, to obtain an intermediate polyol; and subjecting ethylene oxide to a ring-opening addition polymerization in an amount of from 1 to 23 mol per 1 mol of the initiator to the intermediate polyol, in the presence of an alkali metal hydroxide as a polymerization catalyst, and a flexible polyurethane foam is produced by using the polyol system solution. |
申请公布号 |
US2014031443(A1) |
申请公布日期 |
2014.01.30 |
申请号 |
US201314041553 |
申请日期 |
2013.09.30 |
申请人 |
ASAHI GLASS COMPANY, LIMITED |
发明人 |
SASAKI TAKAYUKI;ITO TAKASHI;HORIE AKIO;SUZUKI CHITOSHI;ARAI TAKEAKI;FURUMI MASAHITO |
分类号 |
C08G18/48;C08J9/00 |
主分类号 |
C08G18/48 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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