会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Process for separating para-xylene from a C.sub.8 and C.sub.9 aromatic
mixture
    • 从C8和C9芳族混合物中分离对二甲苯的方法
    • US5171922A
    • 1992-12-15
    • US791697
    • 1991-11-14
    • Gary C. Anderson
    • Gary C. Anderson
    • C07C7/13
    • C07C7/13
    • In the process flow scheme for chromatographically separating paraxylene from C.sub.8 isomers containing substantial amounts of C.sub.9 aromatic hydrocarbon impurities with an X or Y zeolite adsorbent and heavy desorbents, e.g., tetralin and derivatives thereof and diethyltoluene, a drag stream is split from the extract fractionation column bottoms stream, containing desorbent and C.sub.9 aromatic hydrocarbon impurities for recycling to the separation unit, and is directed to the raffinate fractionation column, where C.sub.9 aromatic hydrocarbons are removed to prevent C.sub.9 aromatic hydrocarbons from building up in the desorbent input to the separation unit. A fractionator for the extract column stream is eliminated, lowering capital costs.
    • 在使用X或Y沸石吸附剂和重质脱附剂(如四氢化萘及其衍生物和二乙基甲苯)色谱分离对二甲苯与含有大量C 9芳族烃杂质的C8异构体进行色谱分离的工艺流程图中,从萃取分馏塔 含有解吸剂和C9芳族烃杂质用于再循环到分离单元,并且被引导到萃余液分馏塔,其中除去C 9芳族烃以防止C9芳族烃在解吸剂输入到分离单元中积累。 消除了提取塔流的分馏塔,降低了投资成本。
    • 3. 发明授权
    • Surgical sponge material
    • 手术海绵材料
    • US4211227A
    • 1980-07-08
    • US921544
    • 1978-07-03
    • Gary C. AndersonJon A. HoweyHarish A. Patel
    • Gary C. AndersonJon A. HoweyHarish A. Patel
    • A61L15/16A61F13/00A61F13/15A61F13/20B32B5/26D04H1/54
    • B32B5/26A61F13/00008A61F13/36A61F13/51311D04H1/541D04H1/55D04H1/559A61F13/534A61F13/539A61F2013/00153A61F2013/00744A61F2013/53445Y10T428/24826
    • A nonwoven hospital sponge material has been provided comprising a layered fabric having an inner core of a substantially hydrophilic material disposed adjacent at least one outer or surface layer or between a pair of outer layers of a substantially hydrophobic material, said sponge material being bonded by passing the material through rolls engraved in a pattern of lands and grooves in such a way that a repeating pattern of three degrees of compression are imposed therein: high compression, intermediate compression and, little or no compression. A nonwoven fabric bonded in this manner becomes more absorbent, loftier, has good surface integrity and does not adhere to the wound surface, when the nonwoven sponge material is then compacted subsequent to the bonding step. This thusly constructed, rather lighweight nonwoven material, produces a relatively inexpensive and disposable hospital sponge and dressing material having all of the desirable features of the more expensive woven materials commonly used today.
    • 已经提供了一种非织造的医院海绵材料,其包括层状织物,其具有邻近至少一个外表层或表面层设置的基本上亲水性材料的内芯,或者在一对基本上疏水性材料的外层之间,所述海绵材料通过通过 材料通过辊以图案形成的凹槽和凹槽,使得在其中施加三度压缩的重复图案:高压缩,中间压缩和很少或不受压缩。 以这种方式粘合的非织造织物在接合步骤之后,当非织造海绵材料然后被压实时,变得更具吸收性,高度,具有良好的表面完整性并且不粘附到伤口表面上。 这种由此构造的相当轻型的非织造材料产生相对便宜且一次性的医院海绵和敷料材料,其具有今天通常使用的更昂贵的织造材料的所有所需特征。