发明名称 |
FOAM MATERIAL ON THE BASIS ON PHENOLIC RESIN |
摘要 |
Disclosed is a method of preparing a bio-based thermosetting foam material with improved properties, in particular improved flame retardant properties, which method includes the steps of a) producing a prepolymer by condensation of at least one phenolic compound and formaldehyde in a ratio of 1:1.0 to 3.0 using 0.15 to 5 wt % of an alkaline catalyst in the temperature range of 50 to 100° C. until the refractive index of the reaction mixture is 1.4990 to 1.5020, b) adding 2 to 40 wt % of at least one natural polyphenol at a temperature of 50 to 100° C., c) adding 2 to 10 wt % of one or more emulsifiers and mixtures thereof, d) adding 2 to 10 wt % of one or more foaming agents and mixtures thereof and e) adding 10 to 20 wt % of a curing agent and f) curing. All wt % being related to the amount of the raw materials used. |
申请公布号 |
EP2780405(A1) |
申请公布日期 |
2014.09.24 |
申请号 |
EP20120799511 |
申请日期 |
2012.11.14 |
申请人 |
MOMENTIVE SPECIALTY CHEMICALS GMBH |
发明人 |
DAHLHAUS, DANIEL;KUHLMANN, GUNDA;BÖLKE, ROSEL |
分类号 |
C08L61/14;C08G8/10;C08G8/34;C08J9/00;C08J9/14 |
主分类号 |
C08L61/14 |
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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