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    • 5. 发明授权
    • Foam in bag packaging system and method for producing the same
    • 泡沫袋包装系统及其制造方法
    • US06974025B2
    • 2005-12-13
    • US10771616
    • 2004-02-04
    • George T. BertramWilliam R. ArmstrongLawrence J. PilloteWilliam J. MahonRobert D. WheelerLaurence B. Sperry
    • George T. BertramWilliam R. ArmstrongLawrence J. PilloteWilliam J. MahonRobert D. WheelerLaurence B. Sperry
    • B29C44/18B65D81/05B65D81/32
    • B65D81/3266B29C44/183B65D81/051B65D81/3272Y10T428/1334
    • A packaging system for producing a foam-in-bag cushion upon demand includes a bag of flexible plastic film and defining therein an enclosed space which is vented to the outside of the bag, a foam precursor packet positioned at a predetermined location within the enclosed space in the bag and being formed of a barrier material. The packet includes first and second compartments with a first frangible seal separating the first and second compartments which when ruptured will permit the contents of the compartments to be mixed to form a foam cushion and a second frangible seal between one of the compartments and the enclosed space in the bag. A first foam precursor component is contained in the first compartment of the packet and a second foam precursor component is contained in the second compartment of the packet. The frangible seals have a peel strength of at least about one pound per inch and less than about twelve pounds per inch and more particularly a peel strength of about one pound per inch to about seven pounds per inch. The frangible seals are formed by providing bands of printed area on the facing surfaces of the material forming the packet which is arranged in a matrix of printed and unprinted areas. The printed areas prevent the surfaces from being joined by heat sealing and the matrix is such that a frangible seal of the desired peel strength is formed.
    • 一种用于根据需要生产泡沫袋衬垫的包装系统包括一袋柔性塑料薄膜,并在其中限定出一个封闭空间,该封闭空间通向袋的外部,泡沫前体包装件位于封闭空间内的预定位置 并且由阻挡材料形成。 所述包装包括具有第一和第二隔室的第一和第二隔室,所述第一和第二隔室分隔第一和第二隔室,当破裂时将允许隔间的内容物混合以形成泡沫缓冲垫,并且在隔室和封闭空间之间形成第二易碎密封 在包里。 第一泡沫前体组分包含在包装的第一隔室中,并且第二泡沫前体成分包含在包装的第二隔室中。 易碎密封件的剥离强度至少约为每磅一磅,每英寸少于约十二磅,特别是每英寸约一磅至约七磅/英寸的剥离强度。 易碎密封件通过在形成分组的材料的面对表面上提供布置在印刷区域和未印刷区域的矩阵中的带状区域而形成。 印刷区域防止表面通过热封接合,并且基体使得形成所需剥离强度的易碎密封。
    • 8. 发明授权
    • Foam in bag packaging system and method for producing the same
    • 泡沫袋包装系统及其制造方法
    • US06983839B2
    • 2006-01-10
    • US10771609
    • 2004-02-04
    • George T. BertramWilliam R. ArmstrongLawrence J. PilloteWilliam J. MahonRobert D. WheelerLaurence B. Sperry
    • George T. BertramWilliam R. ArmstrongLawrence J. PilloteWilliam J. MahonRobert D. WheelerLaurence B. Sperry
    • B65D81/05B65D81/32
    • B65D81/3266B29C44/183B65D81/051B65D81/3272Y10T428/1334
    • A packaging system for producing a foam-in-bag cushion upon demand includes a bag of flexible plastic film and defining therein an enclosed space which is vented to the outside of the bag, a foam precursor packet positioned at a predetermined location within the enclosed space in the bag and being formed of a barrier material. The packet includes first and second compartments with a first frangible seal separating the first and second compartments which when ruptured will permit the contents of the compartments to be mixed to form a foam cushion and a second frangible seal between one of the compartments and the enclosed space in the bag. A first foam precursor component is contained in the first compartment of the packet and a second foam precursor component is contained in the second compartment of the packet. The frangible seals have a peel strength of at least about one pound per inch and less than about twelve pounds per inch and more particularly a peel strength of about one pound per inch to about seven pounds per inch. The frangible seals are formed by providing bands of printed area on the facing surfaces of the material forming the packet which is arranged in a matrix of printed and unprinted areas. The printed areas prevent the surfaces from being joined by heat sealing and the matrix is such that a frangible seal of the desired peel strength is formed.
    • 一种用于根据需要生产泡沫袋衬垫的包装系统包括一袋柔性塑料薄膜,并在其中限定出一个封闭空间,该封闭空间通向袋的外部,泡沫前体包装件位于封闭空间内的预定位置 并且由阻挡材料形成。 所述包装包括具有第一和第二隔室的第一和第二隔室,所述第一和第二隔室分隔第一和第二隔室,当破裂时将允许隔间的内容物混合以形成泡沫缓冲垫,并且在隔室和封闭空间之间形成第二易碎密封 在包里。 第一泡沫前体组分包含在包装的第一隔室中,并且第二泡沫前体成分包含在包装的第二隔室中。 易碎密封件的剥离强度至少约为每磅一磅,每英寸少于约十二磅,特别是每英寸约一磅至约七磅/英寸的剥离强度。 易碎密封件通过在形成分组的材料的面对表面上提供布置在印刷区域和未印刷区域的矩阵中的带状区域而形成。 印刷区域防止表面通过热封接合,并且基体使得形成所需剥离强度的易碎密封。
    • 10. 发明授权
    • Method for producing polyurethane foam and apparatus therefor
    • 聚氨酯泡沫塑料的制造方法及其设备
    • US5118720A
    • 1992-06-02
    • US731115
    • 1991-07-15
    • Robert D. WheelerRonald J. WierzbickiEdward H. SchulmanGeorge T. Bertram
    • Robert D. WheelerRonald J. WierzbickiEdward H. SchulmanGeorge T. Bertram
    • B29B7/74B29C44/34
    • B29B7/7447B29C44/3446
    • A method of producing a polyurethane foam comprising the steps of dissolving rapidly and substantially completely a non-condensible non-reactive gas in a liquid isocyanate component or a liquid polyol component or both while the isocyanate and polyol components are maintained separate from one another, while controlling the flow of the non-reactive gas to maintain a predetermined dissolved gas to liquid ratio, and while maintaining the component in which the nucleating agent is being dissolved under pressure sufficient to maintain the gas in solution and to hold substantially constant the dissolved gas to liquid ratio and mixing the previously separated isocyanate and polyol components together while reducing the pressure to nucleate the dissolved gas in the isocyanate and polyol components and while impinging liquid streams of the composition together thereby enhancing mixing and permitting the mixture to foam so as to form a fine celled polyurethane foam. An apparatus for producing the same is also provided.
    • 一种制备聚氨酯泡沫的方法,包括以下步骤:将异氰酸酯和多元醇组分彼此分离地同时将液体异氰酸酯组分或液体多元醇组分或两者中的快速且基本上完全不溶的非反应性气体溶解,同时 控制非反应性气体的流动以保持预定的溶解气体与液体的比例,并且同时保持其中成核剂溶解的组分在足以将气体保持在溶液中并使基本上恒定的溶解气体 液体比例,并将先前分离的异氰酸酯和多元醇组分混合在一起,同时降低了将异氰酸酯和多元醇组分中的溶解气体成核的压力,同时将组合物的液流冲击在一起,从而增强混合并使混合物发泡,从而形成 细胞聚氨酯泡沫。 还提供了一种用于制造该装置的装置。