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公开(公告)号：EP0382561A3
公开(公告)日：1991-02-27
申请号：EP90301403.3
申请日：1990-02-09
发明人： Sudan, Krishan K.
CPC分类号： C08J9/141 , C08J9/143 , C08J2361/06 , Y10S521/918
摘要： A phenolic resin (novalak or resol) is prepared, preferably from formaldehyde; 100 parts by wt. are mixed with 0.5 to 20 parts of a surfactant (e.g. a polyoxyethylene compound), 1 to 20 parts of a blowing agent (a volatile liquid) and optionally 0.5 to 10 parts of a wetting agent which acts to open the cells (e.g. sodium or ammonium lauryl ether sulphate), the mixing is at high speed and high shear. Separately an acid catalyst is prepared, e.g. of sulphonic acids and phosphoric acid, and the mixtures admixed so as to cure the resin, e.g. for 1/2-24 hours at room temperature to 65°C. The cured cellular product is cut into a sheet and compressed, e. g. between two plates, to e.g. 5 to 60%, preferably 50-60% of its original thickness, for from 2 to 60 seconds, and the pressure released. The sheet regains 50-95% of its original thickness and remains flexible or semi-flexible. The product has properties suitable for its use in insulation, absorption of fluids or sound, or cushioning. A substance which improves resistance to fire and smoke can optionally be incorporated.
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公开(公告)号：EP0382561B1
公开(公告)日：1996-08-28
申请号：EP90301403.3
申请日：1990-02-09
发明人： Sudan, Krishan K.
CPC分类号： C08J9/141 , C08J9/143 , C08J2361/06 , Y10S521/918
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公开(公告)号：EP0382561A2
公开(公告)日：1990-08-16
申请号：EP90301403.3
申请日：1990-02-09
发明人： Sudan, Krishan K.
CPC分类号： C08J9/141 , C08J9/143 , C08J2361/06 , Y10S521/918
摘要： A phenolic resin (novalak or resol) is prepared, preferably from formaldehyde; 100 parts by wt. are mixed with 0.5 to 20 parts of a surfactant (e.g. a polyoxyethylene compound), 1 to 20 parts of a blowing agent (a volatile liquid) and optionally 0.5 to 10 parts of a wetting agent which acts to open the cells (e.g. sodium or ammonium lauryl ether sulphate), the mixing is at high speed and high shear. Separately an acid catalyst is prepared, e.g. of sulphonic acids and phosphoric acid, and the mixtures admixed so as to cure the resin, e.g. for 1/2-24 hours at room temperature to 65°C.
The cured cellular product is cut into a sheet and compressed, e. g. between two plates, to e.g. 5 to 60%, preferably 50-60% of its original thickness, for from 2 to 60 seconds, and the pressure released. The sheet regains 50-95% of its original thickness and remains flexible or semi-flexible.
The product has properties suitable for its use in insulation, absorption of fluids or sound, or cushioning.
A substance which improves resistance to fire and smoke can optionally be incorporated.摘要翻译： 制备酚醛树脂（novalak或resol），优选由甲醛制成; 100重量份 与0.5至20份表面活性剂（例如聚氧乙烯化合物），1至20份发泡剂（挥发性液体）和任选的0.5至10份用于打开细胞的润湿剂（例如钠或 月桂基醚硫酸铵），混合是高速和高剪切。 分别制备酸催化剂，例如 的磺酸和磷酸，并且将混合物混合以固化树脂，例如。 在室温至65℃下保温1〜2-24小时。将固化的细胞产物切成片并压缩， G。 在两个板之间。 5至60％，优选其原始厚度的50-60％，持续2至60秒，释放压力。 该纸张恢复其原始厚度的50-95％，并保持柔性或半柔性。 该产品具有适用于绝缘，吸收液体或声音或缓冲的性能。 可以任选地加入改善耐火和烟雾的物质。
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