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公开(公告)号：US5294647A
公开(公告)日：1994-03-15
申请号：US18304
申请日：1993-02-16
CPC分类号： C08J9/30 , C08G18/163 , C08G18/7664 , C08J9/144 , C08G2101/0025 , C08G2101/005 , C08G2105/02 , C08J2375/04 , Y10S521/902
摘要： In a method of producing a thermosetting foam, a first of two foam forming blends ("A-Blend") is prepared using a multi-functional isocyanate such as polymeric polymethylene polyphenylisocyanate ("PMDI"). A second of two foam forming blends ("B-Blend") is prepared by mixing together a polyol; water; a tertiary amine catalyst having at least two hydrogen bonding sites for one molecule; and, an alkali metal organo-salt catalyst. The tertiary amine catalyst is of a type wherein both the hydrogen segment and the hydroxyl segment of water are attracted by both of the hydrogen bonding cites on the catalyst molecule essentially simultaneously. A first blowing agent is included with one of the two foam forming blends. When the first and second foam forming blends are mixed together, the tertiary amine catalyst quickly initiates a reaction predominately of the polymeric polymethylene polyphenylisocyanate with water (as opposed to a reaction with the polyol). The quick reaction of the PMDI with water causes, prior to a gel point of the foam, both (1) the production of a second blowing agent for forming cells in the blends and for causing expansion in the liquid blends; and (2) sufficient exothermic heat to initiate boiling of the first blowing agent. Relatively large amounts of alkali metal organo-salt catalyst induce rapid vaporizing of the first blowing agent due to a high level of exothermic heat, whereby expansion of the mixed blends is substantially completed prior to the effective conversion of the mixed liquid blends to a solid. According to the method, a degree of completion of expansion of the foam at any point in time exceeds a degree of completion of chemical reactions of the foam. In another mode of the invention, a frothing agent is also employed.
摘要翻译： 在制备热固性泡沫的方法中，使用多官能异氰酸酯如聚合多亚甲基多苯基异氰酸酯（“PMDI”）制备两种泡沫形成共混物中的第一种（“A-Blend”）。 通过将多元醇混合在一起制备两种泡沫形成共混物（“B-Blend”）中的第二种; 水; 一个分子具有至少两个氢键位置的叔胺催化剂; 和碱金属有机盐催化剂。 叔胺催化剂是一种类型，其中氢链段和水的羟基部分基本上同时地被催化剂分子上的氢键引物吸引。 第一发泡剂包括在两种泡沫形成共混物之一中。 当第一和第二泡沫形成共混物混合在一起时，叔胺催化剂迅速引发聚合物多亚甲基多苯基异氰酸酯与水的反应（与与多元醇的反应相反）。 PMDI与水的快速反应在泡沫的凝胶点之前导致（1）生产用于在共混物中形成细胞并引起液体共混物膨胀的第二发泡剂; 和（2）充分的放热以引发第一发泡剂的沸腾。 相对大量的碱金属有机盐催化剂由于高水平的放热导致第一发泡剂的快速蒸发，从而在将混合液体共混物有效转化为固体之前基本上完成了混合共混物的膨胀。 根据该方法，泡沫在任何时间点的膨胀完成程度都超过了泡沫化学反应的完成程度。 在本发明的另一方式中，也采用发泡剂。
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公开(公告)号：US5254600A
公开(公告)日：1993-10-19
申请号：US851889
申请日：1992-03-16
CPC分类号： C08J9/30 , C08G18/163 , C08G18/7664 , C08J9/144 , C08G2101/0025 , C08G2105/02 , C08J2375/04
摘要： In a method of producing a thermosetting foam, a first of two foam forming blends ("A-Blend") is prepared using a multi-functional isocyanate such as polymeric polymethylene polyphenylisocyanate ("PMDI"). A second of two foam forming blends ("B-Blend") is prepared by mixing together a polyol; water; a tertiary amine catalyst having at least two hydrogen bonding sites for one molecule; and, an alkali metal organo-salt catalyst. The tertiary amine catalyst is of a type wherein both the hydrogen segment and the hydroxyl segment of water are attracted by both of the hydrogen bonding cites on the catalyst molecule essentially simultaneously. A first blowing agent is included with one of the two foam forming blends. When the first and second foam forming blends are mixed together, the tertiary amine catalyst quickly initiates a reaction predominately of the polymeric polymethylene polyphenylisocyanate with water (as opposed to a reaction with the polyol). The quick reaction of the PMDI with water causes, prior to a gel point of the foam, both (1) the production of a second blowing agent for forming cells in the blends and for causing expansion in the liquid blends; and (2) sufficient exothermic heat to initiate boiling of the first blowing agent. Relatively large amounts of alkali metal organo-salt catalyst induce rapid vaporizing of the first blowing agent due to a high level of exothermic heat, whereby expansion of the mixed blends is substantially completed prior to the effective conversion of the mixed liquid blends to a solid. According to the method, a degree of completion of expansion of the foam at any point in time exceeds a degree of completion of chemical reactions of the foam. In another mode of the invention, a frothing agent is also employed.
摘要翻译： 在制备热固性泡沫的方法中，使用多官能异氰酸酯如聚合多亚甲基多苯基异氰酸酯（“PMDI”）制备两种泡沫形成共混物中的第一种（“A-Blend”）。 通过将多元醇混合在一起制备两种泡沫形成共混物（“B-Blend”）中的第二种; 水; 一个分子具有至少两个氢键位置的叔胺催化剂; 和碱金属有机盐催化剂。 叔胺催化剂是一种类型，其中氢链段和水的羟基部分基本上同时地被催化剂分子上的氢键引物吸引。 第一发泡剂包括在两种泡沫形成共混物之一中。 当第一和第二泡沫形成共混物混合在一起时，叔胺催化剂迅速引发聚合物多亚甲基多苯基异氰酸酯与水的反应（与与多元醇的反应相反）。 PMDI与水的快速反应在泡沫的凝胶点之前导致（1）生产用于在共混物中形成细胞并引起液体共混物膨胀的第二发泡剂; 和（2）足够的放热以引发第一发泡剂的沸腾。 相对大量的碱金属有机盐催化剂由于高水平的放热导致第一发泡剂的快速蒸发，从而在将混合液体共混物有效转化为固体之前基本上完成了混合共混物的膨胀。 根据该方法，泡沫在任何时间点的膨胀完成程度都超过了泡沫化学反应的完成程度。 在本发明的另一方式中，也采用发泡剂。
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公开(公告)号：US5433050A
公开(公告)日：1995-07-18
申请号：US149740
申请日：1993-11-10
申请人： Allan L. Wilson , Andy I. McLaughlin , William E. Todd , Ronald Jadlocki , Russell D. Addison , Timothy L. Lagod
发明人： Allan L. Wilson , Andy I. McLaughlin , William E. Todd , Ronald Jadlocki , Russell D. Addison , Timothy L. Lagod
CPC分类号： E04D3/352 , E04D13/172 , E04D3/357
摘要： A thermally insulative building construction panel (10) comprises a first or bottom sheet (20) of insulation material; a second or top sheet (24) of a rigid nail-anchoring material; and, a plurality of spacer members (22) sandwiched in fixed positions between the first sheet and the second sheet for defining air channels (25) between the sheets and the spacer members. The spacer members (22) are over three inches wide and are at least one-half inch thick. The spacer members (22) are comprised of a plastic foam insulation material selected from the group consisting of polyurethane modified polyisocyanurate foam, phenolic-formaldehyde foam, and polystyrene foam.
摘要翻译： 绝热建筑结构板（10）包括绝缘材料的第一或底部片（20） 刚性钉锚定材料的第二或顶片（24）; 以及夹在所述第一片和所述第二片之间的固定位置的多个间隔构件（22），用于限定所述片和间隔构件之间的空气通道（25）。 隔离构件（22）的宽度超过三英寸，并且至少为半英寸厚。 隔离构件（22）由选自聚氨酯改性的聚异氰脲酸酯泡沫，酚醛泡沫和聚苯乙烯泡沫的塑料泡沫绝缘材料组成。
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公开(公告)号：US5252625A
公开(公告)日：1993-10-12
申请号：US720735
申请日：1991-06-25
CPC分类号： C08J9/30 , C08G18/163 , C08G18/7664 , C08J9/144 , C08G2101/005 , C08G2105/02 , C08J2375/04
摘要： In a method of producing a thermosetting foam, a first of two foam forming blends ("A Blend") is prepared using polymeric polymethylene polyphenylisocyanate ("PMDI"). A second of two foam forming blends ("B Blend") is prepared by mixing together a polyol; water; a tertiary amine catalyst having at least one ethyl (--CH.sub.2 --CH.sub.2 --) linkage between two heteroatoms, the heteroatoms being chosen from the group consisting of Nitrogen and Oxygen; and, an alkali metal organo-salt catalyst. A first blowing agent is included with one of the two foam forming blends. When the first and second foam forming blends are mixed together, the tertiary amine catalyst quickly initiates a reaction predominately of the polymeric polymethylene polyphenylisocyanate with water (as opposed to a reaction with the polyol). The quick reaction of the PMDI with water causes, prior to a gel point of the foam, both (1) the production of a second blowing agent for forming cells in the blends and for causing expansion in the liquid blends; and (2) sufficient exothermic heat to initiate boiling of the first blowing agent. Relatively large amounts of alkali metal organo-salt catalyst induce rapid vaporizing of the first blowing agent due to a high level of exothermic heat, whereby expansion of the mixed blends is substantially completed prior to the effective conversion of the mixed liquid blends to a solid. According to the method, a degree of completion of expansion of the foam at any point in time exceeds a degree of completion of chemical reactions of the foam. In another mode of the invention, a frothing agent is also employed.
摘要翻译： 在制备热固性泡沫的方法中，使用聚合多亚甲基多苯基异氰酸酯（“PMDI”）制备两种泡沫形成共混物中的第一种（“A Blend”）。 通过将多元醇混合在一起制备两种泡沫形成共混物（“B混合物”）中的第二种; 水; 具有在两个杂原子之间具有至少一个乙基（-CH 2 -CH 2 - ）键的叔胺催化剂，该杂原子选自氮和氧; 和碱金属有机盐催化剂。 第一发泡剂包括在两种泡沫形成共混物之一中。 当第一和第二泡沫形成共混物混合在一起时，叔胺催化剂迅速引发聚合物多亚甲基多苯基异氰酸酯与水的反应（与与多元醇的反应相反）。 PMDI与水的快速反应在泡沫的凝胶点之前导致（1）生产用于在共混物中形成细胞并引起液体共混物膨胀的第二发泡剂; 和（2）足够的放热以引发第一发泡剂的沸腾。 相对大量的碱金属有机盐催化剂由于高水平的放热导致第一发泡剂的快速蒸发，从而在将混合液体共混物有效转化为固体之前基本上完成了混合共混物的膨胀。 根据该方法，泡沫在任何时间点的膨胀完成程度都超过了泡沫化学反应的完成程度。 在本发明的另一方式中，也采用发泡剂。
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