摘要:
There is now provided storage stable polyol compositions and polyisocyanate based rigid dosed cell foam made by reacting an organic isocyanate with polyol compositions in the presence of a blowing agent, where the polyol composition contains at least:a) an aromatic amine initiated polyoxyalkylene polyether polyol having an hydroxyl number of 200 meq polyol/g KOH or more;b) an aliphatic amine initiated polyoxyalkylene polyether polyol having an hydroxyl number of 200 meq polyol/g KOH or more;and the blowing agent is at least cyclopentane in an amount of 7 weight percent or more based on the weight of the polyol composition; and further, the cyclopentane blowing agent is soluble in the polyol composition, and the amount of the aliphatic amine initiated polyoxyalkylene polyether polyol is 10 weight percent or less based on the weight of the polyol composition.The polyol composition is adapted to solubilize cyclopentane in the polyol composition without sacrificing, and advantageously improving, the thermal insulation and dimensional stability of the resulting polyurethane foam. It was surprising to discover that less than 10 weight percent of the aliphatic amine initiated polyol was need to accomplish these objectives, and it was further surprising to discover that the aromatic amine initiated polyether polyol improved the thermal insulation of the foam.
摘要翻译:现在提供储存稳定的多元醇组合物和通过有机异氰酸酯与多元醇组合物在发泡剂存在下反应制备的多异氰酸酯基刚性定量泡沫泡沫,其中多元醇组合物至少包含:a)芳族胺引发的聚氧化烯聚醚多元醇,其具有 羟值为200meq多元醇/ g KOH以上; b)具有羟值为200meq多元醇/ g KOH或更高的脂族胺引发的聚氧化烯聚醚多元醇; 发泡剂至少为多元醇组合物重量的7重量%以上的环戊烷; 此外,环戊烷发泡剂可溶于多元醇组合物,并且脂肪族胺引发的聚氧化烯聚醚多元醇的量相对于多元醇组合物的重量为10重量%以下。 多元醇组合物适于在多元醇组合物中溶解环戊烷,而不会牺牲所得聚氨酯泡沫体的绝热性和尺寸稳定性,有利地改善。 令人惊奇地发现,少于10重量%的脂族胺引发的多元醇需要实现这些目的,并且令人惊奇的是发现芳族胺引发的聚醚多元醇改善了泡沫的隔热性。
摘要:
The present invention discloses a polyol resin composition containing a polyether polyol blend, a polyester polyol, and a hydrocarbon blowing agent. The polyether polyol blend has at least a diamine initiated polyol, a propylene oxide polyol, and a polyethylene terephthalate initiated polyol having a functionality of from 2.3 to 3.0. The polyester polyol is preferably a phthalic anhydride initiated polyester polyol. The blowing agent is a C4-C6 hydrocarbon. Also disclosed is a method of producing a polyurethane foam combining the above mentioned polyol resin and an isocyanate component.
摘要:
There is now provided a method for making a polyisocyanate based rigid closed cell foam made by reacting an organic isocyanate with a polyol composition made up of at least:a) an aromatic amine initiated polyoxyalkylene polyether polyol having an hydroxyl number of 200 meq polyol/g KOH or more;b) an aliphatic amine initiated polyoxyalkylene polyether polyol having an hydroxyl number of 200 meq polyol/g KOH or more in an amount of 10 weight percent or less based on the weight of the polyol composition; andc) cyclopentane,wherein the cyclopentane is dissolved in the polyol composition. The organic isocyanate and the polyol composition are reacted at an isocyanate index ranging from 80 to less than 150, and throughout this isocyanate index range, the resulting foam has a substantially constant k-factor and is dimensionally stable.
摘要翻译:现在提供了一种通过使有机异氰酸酯与至少由以下组成的多元醇组合物反应制备的多异氰酸酯基刚性闭孔泡沫的方法:a)具有羟值为200meq多元醇/ g的芳族胺引发的聚氧化烯聚醚多元醇 KOH或更多; b)基于多元醇组合物的重量,羟基数为200meq多元醇/ g KOH或更多的脂族胺引发的聚氧化烯聚醚多元醇的量为10重量%或更少; 和c)环戊烷,其中环戊烷溶解在多元醇组合物中。 有机异氰酸酯和多元醇组合物在80至小于150的异氰酸酯指数下反应,并且在该异氰酸酯指数范围内,所得泡沫具有基本上恒定的k因子并且尺寸稳定。
摘要:
There is now provided a polyisocyanate based rigid closed cell foam made by reacting an organic isocyanate with a polyol composition in the presence of a blowing agent, where the polyol composition contains at least:a) an aromatic amine initiated polyoxyalkylene polyether polyol having an hydroxyl number of 200 meq polyol/g KOH or more;b) an aliphatic amine initiated polyoxyalkylene polyether polyol having an hydroxyl number of 200 meq polyol/g KOH or more;and the blowing agent is at least cyclopentane in an amount of 7 weight percent or more based on the weight of the polyol composition; and further, the cyclopentane blowing agent is soluble in the polyol composition, and the amount of the aliphatic amine initiated polyoxyalkylene polyether polyol is 10 weight percent or less based on the weight of the polyol composition.The polyol composition is adapted to solubilize cyclopentane in the polyol composition without sacrificing, and advantageously improving, the thermal insulation and dimensional stability of the resulting polyurethane foam. It was surprising to discover that less than 10 weight percent of the aliphatic amine initiated polyol was need to accomplish these objectives, and it was further surprising to discover that the aromatic an fine initiated polyether polyol improved the thermal insulation of the foam.
摘要翻译:现在提供一种通过有机异氰酸酯与多元醇组合物在发泡剂存在下反应制备的多异氰酸酯基刚性闭孔泡沫,其中多元醇组合物至少包含:a)具有羟基数的芳族胺引发的聚氧化烯聚醚多元醇 200meq多元醇/ g KOH或更多; b)具有羟值为200meq多元醇/ g KOH或更高的脂族胺引发的聚氧化烯聚醚多元醇; 发泡剂至少为多元醇组合物重量的7重量%以上的环戊烷; 此外,环戊烷发泡剂可溶于多元醇组合物,并且脂肪族胺引发的聚氧化烯聚醚多元醇的量相对于多元醇组合物的重量为10重量%以下。 多元醇组合物适于在多元醇组合物中溶解环戊烷,而不会牺牲所得聚氨酯泡沫体的绝热性和尺寸稳定性,有利地改善。 令人惊奇地发现,少于10重量%的脂族胺引发的多元醇需要实现这些目的,并且进一步令人惊奇的是发现芳族的细引发的聚醚多元醇改善了泡沫的隔热性。
摘要:
There is now provided a polyisocyanate based rigid closed cell foam made by reacting an organic isocyanate with a polyol composition in the presence of a blowing agent, where the polyol composition contains at least:a) an aromatic amine initiated polyoxyalkylene polyether polyol having an hydroxyl number of 200 meq polyol/g KOH or more;b) an aliphatic amine initiated polyoxyalkylene polyether polyol having an hydroxyl number of 200 meq polyol/g KOH or more; andc) an aromatic polyester polyol having an hydroxyl number of 200 meq. polyol/g KOH or more.The blowing agent is selected from the group consisting of cyclopentane, HFC's, HCFC's, and mixtures thereof in an amount of 5.0 weight percent or more based on the weight of the polyol composition. Preferably, the blowing agent is soluble in the polyol composition without sacrificing, and advantageously improving, the thermal insulation and dimensional stability of the resulting polyurethane foam.Also disclosed are a storage stable polyol composition and methods for making a polyisocyanate based rigid closed cell foam.
摘要:
The present invention discloses a polyol resin composition containing a polyether polyol blend, a polyester polyol, and a hydrocarbon blowing agent. The polyether polyol blend has at least a diamine initiated polyol, a propylene oxide polyol, and a polyethylene terephthalate initiated polyol having a functionality of from 2.3 to 3.0. The polyester polyol is preferably a phthalic anhydride initiated polyester polyol. The blowing agent is a C4-C6 hydrocarbon. Also disclosed is a method of producing a polyurethane foam combining the above mentioned polyol resin and an isocyanate component.
摘要:
There is now provided a polyisocyanate based rigid closed cell foam made by reacting an organic isocyanate with a polyol composition in the presence of a blowing agent, where the polyol composition contains at least: a) an aromatic amine initiated polyoxyalkylene polyether polyol having an hydroxyl number of 200 meq polyol/g KOH or more; b) an aliphatic amine initiated polyoxyalkylene polyether polyol having an hydroxyl number of 200 meq polyol/g KOH or more; and c) an aromatic polyester polyol having an hydroxyl number of 200 meq. polyol/g KOH or more. The blowing agent is selected from the group consisting of cyclopentane, HFC's, HCFC's, and mixtures thereof in an amount of 5.0 weight percent or more based on the weight of the polyol composition. Preferably, the blowing agent is soluble in the polyol composition without sacrificing, and advantageously improving, the thermal insulation and dimensional stability of the resulting polyurethane foam. Also disclosed are a storage stable polyol composition and methods for making a polyisocyanate based rigid closed cell foam.
摘要翻译:现在提供了一种通过有机异氰酸酯与多元醇组合物在发泡剂存在下反应制备的多异氰酸酯基刚性闭孔泡沫,其中多元醇组合物至少包含:a)具有羟基数的芳族胺引发的聚氧化烯聚醚多元醇 200meq多元醇/ g KOH或更多; b)具有羟值为200meq多元醇/ g KOH或更高的脂族胺引发的聚氧亚烷基聚醚多元醇; 和c)羟值为200meq的芳族聚酯多元醇。 多元醇/ g KOH或更多。 基于多元醇组合物的重量,发泡剂选自环戊烷,HFC,HCFC及其混合物,其量为5.0重量%或更多。 优选地,发泡剂可溶于多元醇组合物中,而不牺牲和有利地改善所得聚氨酯泡沫的绝热性和尺寸稳定性。 还公开了储存稳定的多元醇组合物和制备基于多异氰酸酯的刚性闭孔泡沫体的方法。
摘要:
There is now provided a polyisocyanate based rigid closed cell foam made by reacting an organic isocyanate with a polyol composition in the presence of a blowing agent, where the polyol composition contains at least: a) an aromatic amine initiated polyoxyalkylene polyether polyol having an hydroxyl number of 200 meq polyol/g KOH or more; b) an aliphatic amine initiated polyoxyalkylene polyether polyol having an hydroxyl number of 200 meq polyol/g KOH or more; and c) an aromatic polyester polyol having an hydroxyl number of 200 meq. polyol/g KOH or more. The blowing agent is selected from the group consisting of cyclopentane, HFC's, HCFC's, and mixtures thereof in an amount of 5.0 weight percent or more based on the weight of the polyol composition. Preferably, the blowing agent is soluble in the polyol composition without sacrificing, and advantageously improving, the thermal insulation and dimensional stability of the resulting polyurethane foam. Also disclosed are a storage stable polyol composition and methods for making a polyisocyanate based rigid closed cell foam.
摘要:
A polyester polyol composition comprising a phthalic anhydride-initiated polyester polyol, a C4-C6 hydrocarbon blowing agent, and an oxyethylated fatty acid or fatty alcohol compatibilizing agent having an HLB of from about 7 to about 12. The blowing agent is soluble in the polyol composition, thereby reducing the risks associated with such blowing agents in processes for making rigid polymer foam articles and providing rigid foams having good dimensional stability and improved insulation properties.
摘要:
A process for producing a rigid foam based on isocyanate comprises reacting an organic and/or modified organic polyisocyanate with a polyol composition and, optionally, a relatively low molecular weight chain extender or crosslinker in the presence of a catalyst, and, optionally, further auxiliaries and/or additives, wherein the polyol composition comprises a phthalic anhydride-initiated polyester polyol, a blowing agent comprising C4-C6 hydrocarbon, and a fatty acid or fatty alcohol ethoxylate compatibilizing agent. The blowing agent is soluble in the polyol composition, thereby reducing the risks associated with such blowing agents in processes for making rigid polymer foam articles and providing rigid foams having good dimensional stability and improved insulation properties.