公开(公告)号：US06307096B1

公开(公告)日：2001-10-23

申请号：US09473097

申请日：1999-12-28

申请人： Alexa B. Sommer ,  Mary Ann Wittig ,  Edwin Ray Hortelano ,  Philip E. Yeske ,  Jane F. Ciebien

发明人： Alexa B. Sommer ,  Mary Ann Wittig ,  Edwin Ray Hortelano ,  Philip E. Yeske ,  Jane F. Ciebien

IPC分类号： C07C26300

CPC分类号： C07C263/10 ,  C07C263/20 ,  Y02P20/544 ,  C07C265/14

摘要： A method for making an aliphatic diisocyanate by (a) phosgenating an aliphatic diamine in the presence of an inert solvent or gas to form a crude reaction mixture; (b) distilling the crude reaction mixture to form an aliphatic diisocyanate production stream and an aliphatic diisocyanate waste stream; (c) introducing the aliphatic diisocyanate waste stream to a chamber and placing the waste stream under supercritical fluid conditions sufficient to dissolve an appreciable amount of the aliphatic diisocyanate component in the supercritical fluid; (d) separating the dissolved aliphatic diisocyanate component from the waste stream, wherein the remaining waste stream is a supercritically-purged aliphatic diisocyanate waste stream; (e) lowering the pressure sufficiently to precipitate the aliphatic diisocyanate component.

摘要翻译： （a）在惰性溶剂或气体存在下使脂族二胺光气化以形成粗反应混合物的方法制备脂族二异氰酸酯; （b）蒸馏粗反应混合物以形成脂族二异氰酸酯生产流和脂族二异氰酸酯废物流; （c）将脂族二异氰酸酯废物流引入室中，并将废物流置于超临界流体条件下，足以溶解超临界流体中明显量的脂族二异氰酸酯组分; （d）从废物流中分离溶解的脂族二异氰酸酯组分，其中剩余的废物流是超临界吹扫的脂族二异氰酸酯废物流; （e）充分降低压力以沉淀脂族二异氰酸酯组分。

公开(公告)号：US06174959B1

公开(公告)日：2001-01-16

申请号：US09132575

申请日：1998-08-11

申请人： Jane F. Ciebien ,  Rick L. Archey ,  H. Lee Noble

发明人： Jane F. Ciebien ,  Rick L. Archey ,  H. Lee Noble

IPC分类号： C08L7508

CPC分类号： C08G18/758 ,  C08G18/0895 ,  C08L75/08 ,  C08L23/00

摘要： A thermoplastic molding composition comprising a thermoplastic polyurethane and an olefinic copolymer is disclosed. The polyurethane component contains ether structural units and units derived from an aliphatic isocyanate. The molecular structure of the copolymer contains units derived from monomers containing olefinic unsaturation. The composition is characterized in the compatibility of its resinous components and in the improved mechanical properties.

摘要翻译： 公开了一种包含热塑性聚氨酯和烯烃共聚物的热塑性模塑组合物。 聚氨酯组分含有醚结构单元和衍生自脂族异氰酸酯的单元。 共聚物的分子结构包含衍生自含有烯属不饱和单体的单体。 该组合物的特征在于其树脂组分的相容性和改进的机械性能。