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    Process for preparing a stable dispersion of a polymer in a polyol and its use in the production of high resilience polyurethane foam
    1.
    发明授权
    Process for preparing a stable dispersion of a polymer in a polyol and its use in the production of high resilience polyurethane foam 失效
    制备聚合物在多元醇中的稳定分散体的方法及其在高回弹性聚氨酯泡沫塑料生产中的应用

    公开(公告)号：US4497913A

    公开(公告)日：1985-02-05

    申请号：US499651

    申请日：1983-05-31

    申请人： Maurice C. Raes ,  James M. O'Connor ,  Michael L. Rosin

    发明人： Maurice C. Raes ,  James M. O'Connor ,  Michael L. Rosin

    IPC分类号： C08G18/00 ,  C08G18/08 ,  C08G18/40 ,  C08G18/65 ,  C08G18/66 ,  C08K5/05 ,  C08K5/06

    CPC分类号： C08G18/409 ,  C08G18/0876 ,  C08G18/6674 ,  Y10S521/904

    摘要： A stable dispersion of a polymer in a polyol is prepared by reacting an organic polyisocyanate with a short-chain polyol in a high molecular weight polyol containing a relatively high primary hydroxyl group content, the ratio of the content of primary hydroxyl groups in the short-chain polyol to that in the high molecular weight polyol being at least a critical lower limit of about 3.5. The reaction is further carried out in the presence of a small proportion of water to achieve a reduction in the viscosity of the resulting dispersion. The dispersion is used in preparing high resilience polyurethane foam having desirable physical properties and which is of utility in a wide variety of cushioning applications.

    摘要翻译： 聚合物在多元醇中的稳定分散体是通过使有机多异氰酸酯与短链多元醇在含有相对较高的伯羟基含量的高分子量多元醇中反应制备的，短链多元醇在短链多元醇中的伯羟基含量的比例， 链多元醇与高分子量多元醇中的至少约3.5的临界下限。 反应进一步在少量水存在下进行，以达到所得分散体的粘度降低。 分散体用于制备具有所需物理性能的高弹性聚氨酯泡沫，并且其可用于各种缓冲应用中。

    Thermoplastic polyurethane elastomers and polyurea elastomers made using low unsaturation level polyols prepared with double metal cyanide catalysts
    2.
    发明授权
    Thermoplastic polyurethane elastomers and polyurea elastomers made using low unsaturation level polyols prepared with double metal cyanide catalysts 失效
    使用由双金属氰化物催化剂制备的低不饱和度多元醇制备的热塑性聚氨酯弹性体和聚脲弹性体

    公开(公告)号：US5185420A

    公开(公告)日：1993-02-09

    申请号：US852430

    申请日：1992-03-16

    申请人： Curtis P. Smith ,  Maurice C. Raes ,  John W. Reisch ,  Kiran B. Chandalia ,  James M. O'Connor

    发明人： Curtis P. Smith ,  Maurice C. Raes ,  John W. Reisch ,  Kiran B. Chandalia ,  James M. O'Connor

    IPC分类号： C08L75/08 ,  C08G18/10 ,  C08G18/48 ,  C08G18/65 ,  C08G18/66 ,  C08G65/26 ,  C08L75/00

    CPC分类号： C08G18/10 ,  C08G18/4866 ,  C08G18/667 ,  C08G65/2663 ,  C08G2120/00

    摘要： This invention relates to a method of fabricating a thermoplastic elastomer which comprises the steps of: (a) fabricating a polyol having a molecular weight of between about 2,000 and about 8,000 and having a level of end group unsaturation of no greater than 0.02 milliequivalents per gram of polyol, said polyol being fabricated in the presence of a double metal cyanide catalyst, (b) reacting said polyol with a diisocyanate to produce an isocyanate-terminated prepolymer, and (c) reacting said isocyanate-terminated prepolymer with a difunctional isocyanato-reactive chain extender in a mold or in an extruder in order to produce an elastomer characterized by a hardness of between a Shore A hardness of about 50 and a Shore D hardness of about 65. Also claimed is the elastomer produced by the above method utilizing a one-shot technique.

    摘要翻译： 本发明涉及一种制造热塑性弹性体的方法，该方法包括以下步骤：（a）制备分子量为约2,000至约8,000的端基组不饱和度不超过0.02毫克/克的多元醇 所述多元醇在双金属氰化物催化剂的存在下制备，（b）使所述多元醇与二异氰酸酯反应以产生异氰酸酯封端的预聚物，和（c）使所述异氰酸酯封端的预聚物与双官能异氰酸酯基反应性 扩链剂在模具中或在挤出机中以生产特征为硬度为约50的肖氏A硬度和约65的肖氏D硬度之间的硬度的弹性体。还要求保护的是通过上述方法制备的弹性体使用一种 -shot技术。

    Modified polyurethane liquid polymer compositions
    5.
    发明授权
    Modified polyurethane liquid polymer compositions 失效
    改性聚氨酯液体聚合物组合物

    公开(公告)号：US4552917A

    公开(公告)日：1985-11-12

    申请号：US544049

    申请日：1983-10-24

    申请人： James M. O'Connor ,  Donald L. Lickei ,  Michael L. Rosin

    发明人： James M. O'Connor ,  Donald L. Lickei ,  Michael L. Rosin

    IPC分类号： C08F299/06 ,  C08G18/67 ,  C08L75/00

    CPC分类号： C08G18/671 ,  C08F299/065

    摘要： A novel, heat curable, liquid polymer composition is disclosed which comprises a modified urethane oligomer containing terminal ethylenic unsaturation and a free radical catalyst. In a preferred embodiment, the polymer composition further includes at least one additional component selected from a reinforcing agent and a filler; the cured composition demonstrates enhanced impact properties and is particularly useful in automotive body constructions.

    摘要翻译： 公开了一种新型的可热固化的液体聚合物组合物，其包含含有末端烯属不饱和度的改性氨基甲酸酯低聚物和自由基催化剂。 在优选的实施方案中，聚合物组合物还包括至少一种选自增强剂和填料的附加组分; 固化的组合物表现出增强的冲击性能，并且在汽车车身结构中特别有用。