公开(公告)号：US20150232631A1

公开(公告)日：2015-08-20

申请号：US14426535

申请日：2013-09-06

Applicant: BASF SE

Inventor： Marco Balbo Block ,  Yayun Wang ,  Cheul Hyeon Hwang ,  Bangwei Xi

IPC: C08J9/14 ,  F17C13/00 ,  C08J9/00

CPC classification number: C08J9/144 ,  C08G18/4018 ,  C08G18/4202 ,  C08G18/4211 ,  C08G18/4829 ,  C08G18/5021 ,  C08G18/664 ,  C08G2101/0025 ,  C08G2101/0058 ,  C08J9/0066 ,  C08J9/0085 ,  C08J2203/162 ,  C08J2205/10 ,  C08J2375/04 ,  C08J2375/06 ,  F17C13/00 ,  F17C2203/0333

Abstract: A rigid polyurethane foam obtainable by mixing a) isocyanates, b) compounds having groups which are reactive toward isocyanates, c) a blowing agent, d) a catalyst, e) one or more foam stabilizer, and optionally, f) further additives to form a reaction mixture, applying the reaction mixture to a reinforcing material and curing the reaction mixture, wherein the isocyanates (a) have a viscosity of not more than 600 mPas at 25° C. and the compounds (b) having groups which are reactive toward isocyanates comprise (b1) 45-70 wt-% (based on the total weight of (b) of an aromatic polyester polyol having a functionality of 2.5 or less and a hydroxyl number of more than 220 mg KOH/g (b2) 20-40 wt.-% (based on the total weight of (b) of a polyether polyol having a functionality of 4 or more and a hydroxyl number of more than 400 mg KOH/g, and (b3) more than 15 wt.-% (based on the total weight of (b) one or more low molecularweight chain extender and/or one or more crosslinker and/or one or more o-toluene diamine initiated polyether polyol (“TDA polyol”), and wherein the blowing agent comprises 1-chloro-3,3,3-trifluoropropene shows low thermal conductivity values and little shrinkage and its liquid reaction mixture fast wetting and penetration into a stack of several glass fiber mat layers.

Abstract translation: 通过混合a）异氰酸酯可获得的硬质聚氨酯泡沫，b）具有对异氰酸酯反应的基团的化合物，c）发泡剂，d）催化剂，e）一种或多种泡沫稳定剂，以及任选地，f）形成另外的添加剂 反应混合物，将反应混合物施加到增强材料并固化反应混合物，其中异氰酸酯（a）在25℃下的粘度不超过600mPas，化合物（b）具有对 异氰酸酯包含（b1）45-70重量％（基于（b）官能度为2.5以下，羟基数大于220mg KOH / g（b2）20重量％的芳族聚酯多元醇的总重量 40重量％（基于（b）官能度为4以上，羟基数大于400mg KOH / g的聚醚多元醇的总重量，（b3）大于15重量％ （基于（b）一种或多种低分子量增链剂和/或一种或多种交联剂和/或一种或多种 邻苯二甲酸二胺引发的聚醚多元醇（“TDA多元醇”），其中发泡剂包含1-氯-3,3,3-三氟丙烯显示出低的导热性值和很小的收缩率，其液体反应混合物快速润湿并渗入 堆叠几个玻璃纤维垫层。