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    • 4. 发明授权
    • Composition of flexible polyurethane foams blown using reduced amounts
of chlorofluorocarbon blowing agents and method for preparation
    • 使用减少量的氯氟烃发泡剂吹制的柔性聚氨酯泡沫的组成及其制备方法
    • US5240635A
    • 1993-08-31
    • US929741
    • 1992-08-13
    • Ricardo DeGenovaJerram B. Nichols
    • Ricardo DeGenovaJerram B. Nichols
    • C08G18/10C08G18/40C08G18/48C08G18/80
    • C08G18/8019C08G18/10C08G18/4072C08G18/4812C08G18/4841C08G2101/0008C08G2101/0083
    • Flexible polyurethane foams prepared from formulations requiring reduced amounts of chlorofluorocarbon blowing agents are disclosed. The foams can be prepared without undesirable loss of physical properties with formulations comprising an "A" component which is a blend of a polymethylene polydiphenyldiisccyanate and a methylene diphenyldiisocyanate prepolymer wherein the methylene diphenyldiisocyanate prepolymer is prepared from a prepolymer formulation containing an active hydrogen containing compound which has an equivalent weight of about 30 to about 600; a "B" component which includes an active hydrogen containing compound; and a carbon dioxide generating blowing agent. Also disclosed are polyisocyanate blends consisting of polymethylene polydiphenyldiisocyanate and methylene diphenyldiisocyanate prepolymers useful for preparing flexible polyurethane foams. Methods of preparing both the foams and the polyisocyanate blends are also disclosed. The foams of the present invention can be prepared to have improved tensile and tear values. Formulations of the present invention also display advantageously improved processing characteristics such as flowability.
    • 公开了由需要减少量的氯氟烃发泡剂的制剂制备的柔性聚氨酯泡沫体。 可以制备不含有物理性质损失的泡沫,其中包含“A”组分的制剂是由聚亚甲基多二苯基二氰基氰化物和亚甲基二苯基二异氰酸酯预聚物的共混物组成的,其中亚甲基二苯基二异氰酸酯预聚物由含有活性氢化合物的预聚物制剂制备, 具有约30至约600的当量; 包含含活性氢的化合物的“B”成分; 和发生二氧化碳的发泡剂。 还公开了由聚亚甲基聚二苯基二异氰酸酯和用于制备柔性聚氨酯泡沫的亚甲基二苯基二异氰酸酯预聚物组成的多异氰酸酯共混物。 还公开了制备泡沫和多异氰酸酯共混物的方法。 本发明的泡沫可以被制备成具有改善的拉伸和撕裂值。 本发明的制剂还显示出有利地改进的加工特性,例如流动性。
    • 5. 发明授权
    • Composition of flexible polyurethane foams blown using reduced amouns of
chlorofluorocarbon blowing agents and method for preparation
    • 使用减少氟氯烃发泡剂吹制的柔性聚氨酯泡沫的组成及其制备方法
    • US5200435A
    • 1993-04-06
    • US757862
    • 1991-09-11
    • Ricardo DeGenovaJerram B. Nichols
    • Ricardo DeGenovaJerram B. Nichols
    • C08G18/10C08G18/40C08G18/48C08G18/80
    • C08G18/8019C08G18/10C08G18/4072C08G18/4812C08G18/4841C08G2101/0008C08G2101/0083
    • Flexible polyurethane foams prepared from formulations requiring reduced amounts of chlorofluorocarbon blowing agents are disclosed. The foams can be prepared without undesirable loss of physical properties with formulations comprising an "A" component which is a blend of a polymethylene polydiphenyldiisocyanate and a methylene diphenyldiisocyanate prepolymer wherein the methylene diphenyldiisocyanate prepolymer is prepared from a prepolymer formulation containing an active hydrogen containing compound which has an equivalent weight of about 30 to about 600; a "B" component which includes an active hydrogen containing compound; and a carbon dioxide generating blowing agent. Also disclosed are polyisocyanate blends consisting of polymethylene polydiphenyldiisocyanate and methylene diphenyldiisocyanate prepolymers useful for preparing flexible polyurethane foams. Methods of preparing both the foams and the polyisocyanate blends are also disclosed. The foams of the present invention can be prepared to have improved tensile and tear values. Formulations of the present invention also display advantageously improved processing characteristics such as flowability.
    • 公开了由需要减少量的氯氟烃发泡剂的制剂制备的柔性聚氨酯泡沫体。 可以用不含有物理性质的物质损失制备泡沫体,其中包含“A”组分的制剂是一种多亚甲基聚二苯基二异氰酸酯和亚甲基二苯基二异氰酸酯预聚物的混合物,其中亚甲基二苯基二异氰酸酯预聚物由含有活性氢化合物的预聚物制剂制备, 具有约30至约600的当量; 包含含活性氢的化合物的“B”成分; 和发生二氧化碳的发泡剂。 还公开了由聚亚甲基聚二苯基二异氰酸酯和用于制备柔性聚氨酯泡沫的亚甲基二苯基二异氰酸酯预聚物组成的多异氰酸酯共混物。 还公开了制备泡沫体和多异氰酸酯共混物的方法。 本发明的泡沫可以被制备成具有改善的拉伸和撕裂值。 本发明的制剂还显示出有利地改进的加工特性,例如流动性。
    • 6. 发明授权
    • Composition of flexible polyurethane foams below using reduced amounts
of chlorofluorocarbone blowing agents and method for preparation
    • 下面使用减少量的氯氟代烃发泡剂的柔性聚氨酯泡沫的组成及其制备方法
    • US5164423A
    • 1992-11-17
    • US834172
    • 1992-02-06
    • Ricardo De GenovaJerram B. Nichols
    • Ricardo De GenovaJerram B. Nichols
    • C08G18/10C08G18/40C08G18/48C08G18/80
    • C08G18/8019C08G18/10C08G18/4072C08G18/4812C08G18/4841C08G2101/0008C08G2101/0083
    • Flexible polyurethane foams prepared from formulations requiring reduced amounts of chlorofluoro-carbon blowing agents are disclosed. The foams can be prepared without undesirable loss of physical properties with formulations comprising an "A" component which is a blend of a polymethylene polydiphenyldiisocyanate and a methylene diphenyldiisocyanate prepolymer wherein the methylene diphenyldiisocyanate prepolymer is prepared from a prepolymer formulation containing an active hydrogen containing compound which has an equivalent weight of about 30 to about 600; a "B" component which includes an active hydrogen containing compound; and a carbon dioxide generating blowing agent. Also disclosed are polyisocyanate blends consisting of polymethylene polydiphenyldiisocyanate and methylene diphenyldiisocyanate prepolymers useful for preparing flexible polyurethane foams. Methods of preparing both the foams and the polyisocyanate blends are also disclosed. The foams of the present invention can be prepared to have improved tensile and tear values. Formulations of the present invention also display advantageously improved processing characteristics such as flowability.
    • 公开了由需要减少量的氯氟碳发泡剂的制剂制备的柔性聚氨酯泡沫。 可以用不含有物理性质的物质损失来制备泡沫,其中包含“A”组分的制剂是一种聚亚甲基聚二苯基二异氰酸酯和亚甲基二苯基二异氰酸酯预聚物的混合物,其中亚甲基二苯基二异氰酸酯预聚物由含有活性氢化合物的预聚物制剂制备, 具有约30至约600的当量; 包含含活性氢的化合物的“B”成分; 和发生二氧化碳的发泡剂。 还公开了由聚亚甲基聚二苯基二异氰酸酯和用于制备柔性聚氨酯泡沫的亚甲基二苯基二异氰酸酯预聚物组成的多异氰酸酯共混物。 还公开了制备泡沫和多异氰酸酯共混物的方法。 本发明的泡沫可以被制备成具有改善的拉伸和撕裂值。 本发明的制剂还显示出有利地改进的加工特性,例如流动性。
    • 9. 发明授权
    • Flexible polyurethane foams which exhibit excellent flame resistance
    • 具有优异阻燃性的柔性聚氨酯泡沫
    • US4722942A
    • 1988-02-02
    • US19904
    • 1987-02-27
    • Jerram B. NicholsHans R. FriedliStephen R. Burks
    • Jerram B. NicholsHans R. FriedliStephen R. Burks
    • C08G18/38C08G18/65C08G18/32
    • C08G18/3823C08G18/6523
    • This invention is an active hydrogen-containing composition suitable for the production of flexible polyurethane foam when reacted with a polyisocyanate, said composition comprising,(a) a polyol having an average functionality of about 2.0 to about 4.0, having at least about 50% of its active hydroxyl groups in the form of primary hydroxyl groups, and an equivalent weight from about 500 to about 5000;(b) from about 0.5 to about 5 parts, per 100 parts by weight of component (a) of a crosslinker selected from the group consisting of monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, methylene bis(o-chloroaniline) and mixtures thereof; and(c) at least about 0.15 equivalent per equivalent of (a) and (b), of a polyfunctional flame retarding additive having an equivalent weight of less than about 300, which flame retarding additive is selected from the group consisting of (i) hydroxyl-terminated alkanes having a plurality of primary hydroxyl groups, (ii) alkylene ethers and polyethers having a plurality of primary hydroxyl groups, (iii) polyurea compounds having at least 2 hydroxyalkyl groups which are attached to a urea nitrogen atom, (iv) polycarbamates having a plurality of primary hydroxyl groups or a plurality of primary hydroxyalkyl groups attached to a tertiary nitrogen atoms.Foams prepared from this active hydrogen-containing composition have excellent burn properties, as determined by tests described herein, as well as good physical properties.
    • 本发明是一种适用于在与多异氰酸酯反应时生产柔性聚氨酯泡沫的活性含氢组合物,所述组合物包含(a)平均官能度为约2.0至约4.0的多元醇,其具有至少约50% 其活性羟基为伯羟基,当量为约500至约5000; (a)交联剂的组分(a)为约0.5至约5份,选自单乙醇胺,二乙醇胺,三乙醇胺,单异丙醇胺,二异丙醇胺,亚甲基双(邻氯苯胺)及其混合物 ; 和(c)当量重量小于约300的多官能阻燃添加剂中每当量(a)和(b))至少约0.15当量,该阻燃添加剂选自(i) 具有多个伯羟基的羟基封端的烷烃,(ii)具有多个伯羟基的亚烷基醚和聚醚,(iii)与脲氮原子连接的具有至少2个羟烷基的聚脲化合物,(iv) 具有多个伯羟基的多氨基甲酸盐或与叔氮原子连接的多个伯羟基烷基。 由该活性含氢组合物制备的泡沫体具有优异的燃烧性能,如通过本文所述的测试确定的,以及良好的物理性能。