Process for producing flexible polyurethane foam
    2.
    发明授权
    Process for producing flexible polyurethane foam 有权
    生产柔性聚氨酯泡沫的方法

    公开(公告)号:US09334382B2

    公开(公告)日:2016-05-10

    申请号:US13178562

    申请日:2011-07-08

    摘要: A composition and process useful to make flexible polyurethane foams and in particular flexible molded polyurethane foams is disclosed. The usage of dipolar aprotic liquids such as DMSO, DMI, sulfolane, N-methyl-acetoacetamide, N,N-dimethylacetoacetamide as well as glycols containing hydroxyl numbers OH#≦1100 as cell opening aides for 2-cyanoacetamide or other similar molecules containing active methylene or methine groups to make a polyurethane foam is also disclosed. The advantage of using cell opener aids results in a) no foam shrinkage; b) lower use levels of cell opener; c) foam performance reproducibility d) optimum physical properties. In addition, combining the acid blocked amine catalyst together with the cell opener and the cell opener aid results in a less corrosive mixture as well as provides a method that does not require mechanical crushing for cell opening.

    摘要翻译: 公开了用于制备柔性聚氨酯泡沫,特别是柔性模塑聚氨酯泡沫的组合物和方法。 使用偶极非质子液体如DMSO,DMI,环丁砜,N-甲基 - 乙酰乙酰胺,N,N-二甲基乙酰乙酰胺以及含有羟基数OH#& 1100的二醇作为2-氰基乙酰胺或其它类似分子的细胞开放助剂 还公开了制备聚氨酯泡沫的活性亚甲基或次甲基。 使用细胞开放助剂的优点导致a)没有泡沫收缩; b)细胞开放剂的使用水平较低; c)泡沫性能重现性d)最佳物理性能。 此外,将酸封闭的胺催化剂与开孔剂和开孔剂组合在一起导致较少的腐蚀性混合物,并且提供了不需要机械破碎以进行开孔的方法。

    Fast demold/extended cream time polyurethane formulations
    5.
    发明授权
    Fast demold/extended cream time polyurethane formulations 有权
    快速脱模/延长霜剂时间聚氨酯配方

    公开(公告)号:US08258198B2

    公开(公告)日:2012-09-04

    申请号:US11131179

    申请日:2005-05-18

    IPC分类号: B01J31/02

    摘要: Catalyst compositions for use in forming polyurethane products include a gelling catalyst, a trimerization catalyst, and a cure accelerator. The gelling catalyst is a tertiary amine, mono(tertiary amino) urea, bis(tertiary amino) urea, or a combination of any of these. Any known trimerization catalyst may be used. The cure accelerator may be a diol having at least one primary hydroxyl group, and having from five to 17 chain backbone atoms chosen from carbon, oxygen, or both between the hydroxyl groups, provided that at least five of the backbone atoms are carbon. Alternatively or in addition, the cure accelerator may be a polyol having three or more hydroxyl groups, at least two of which are primary, and having molecular weights between 90 g/mole and 400 g/mole. Delayed initiation of the polyurethane-forming reaction and/or reduced demold time for producing the polyurethane part can be obtained by using these catalyst compositions.

    摘要翻译: 用于形成聚氨酯产品的催化剂组合物包括胶凝催化剂,三聚催化剂和固化促进剂。 胶凝催化剂是叔胺,单(叔氨基)脲,双(叔氨基)脲或这些中的任何一种的组合。 可以使用任何已知的三聚催化剂。 固化促进剂可以是具有至少一个伯羟基的二醇,并且在羟基之间具有5至17个选自碳,氧或两者的链骨架原子,条件是至少五个骨架原子是碳。 或者或另外,固化促进剂可以是具有三个或更多个羟基的多元醇,其中至少两个是伯的,分子量在90g / mol至400g / mol之间。 通过使用这些催化剂组合物可以获得聚氨酯形成反应的延迟起始和/或用于制备聚氨酯部分的脱模时间的减少。

    Process For Producing Flexible Polyurethane Foam
    6.
    发明申请
    Process For Producing Flexible Polyurethane Foam 有权
    生产柔性聚氨酯泡沫的方法

    公开(公告)号:US20120178839A1

    公开(公告)日:2012-07-12

    申请号:US13178562

    申请日:2011-07-08

    IPC分类号: C08J9/00 C09K3/00

    摘要: A composition and process useful to make flexible polyurethane foams and in particular flexible molded polyurethane foams is disclosed. The usage of dipolar aprotic liquids such as DMSO, DMI, sulfolane, N-methyl-acetoacetamide, N,N-dimethylacetoacetamide as well as glycols containing hydroxyl numbers OH#≦1100 as cell opening aides for 2-cyanoacetamide or other similar molecules containing active methylene or methine groups to make a polyurethane foam is also disclosed. The advantage of using cell opener aids results in a) no foam shrinkage; b) lower use levels of cell opener; c) foam performance reproducibility d) optimum physical properties. In addition, combining the acid blocked amine catalyst together with the cell opener and the cell opener aid results in a less corrosive mixture as well as provides a method that does not require mechanical crushing for cell opening.

    摘要翻译: 公开了用于制备柔性聚氨酯泡沫,特别是柔性模塑聚氨酯泡沫的组合物和方法。 使用偶极非质子液体如DMSO,DMI,环丁砜,N-甲基 - 乙酰乙酰胺,N,N-二甲基乙酰乙酰胺以及含有羟基数OH#& 1100的二醇作为2-氰基乙酰胺或其它类似分子的细胞开放助剂 还公开了制备聚氨酯泡沫的活性亚甲基或次甲基。 使用细胞开放助剂的优点导致a)没有泡沫收缩; b)细胞开放剂的使用水平较低; c)泡沫性能重现性d)最佳物理性能。 此外,将酸封闭的胺催化剂与开孔剂和开孔剂组合在一起导致较少的腐蚀性混合物,并且提供了不需要机械破碎以进行开孔的方法。