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1. 发明申请

US20050004243A1 Polymer nanocomposite foams 有权
标题翻译：聚合物纳米复合泡沫
公开(公告)号：US20050004243A1
公开(公告)日：2005-01-06
申请号：US10849599
申请日：2004-05-20
申请人： L. Lee , Kurt Koelling , David Tomasko , Xiangmin Han , Changchun Zeng
发明人： L. Lee , Kurt Koelling , David Tomasko , Xiangmin Han , Changchun Zeng
IPC分类号： C04B26/02 , C08J9/00 , C08J9/12 , C08K3/00
CPC分类号： C08J9/122 , C04B26/02 , C08J9/0066 , C08J2203/08 , C08J2205/044 , C08J2325/06 , C08J2333/12 , C04B24/40 , C04B38/00
摘要： Nano-sized particles such as nano-clays can be mixed with polymers through either melt compounding or in-situ polymerization. By modifying the particle surface with various surfactants and controlling processing conditions, we are able to achieve either intercalated (partial dispersion) or exfoliated (full dispersion) nano-clay distribution in polymers with the clay content up to 35% by weight. When a blowing agent is injected into the nanocomposite in an extruder (a continuous mixer) or a batch mixer, polymeric foam can be produced. Supercritical carbon dioxide, an environmentally friendly, low-cost, non-flammable, chemically benign gas is used as the blowing agent. This process forms a microcellular foam with very high cell density (>109 cells/cc) and small cell size (
摘要翻译：纳米尺寸的颗粒例如纳米粘土可以通过熔融混合或原位聚合与聚合物混合。通过用各种表面活性剂改性颗粒表面和控制加工条件，我们能够实现粘土含量高达35％（重量）的聚合物中的插层（部分分散）或剥离（全分散）纳米粘土分布。当在挤出机（连续混合器）或间歇式混合器中将发泡剂注入纳米复合材料时，可以生产聚合物泡沫。作为发泡剂，使用超临界二氧化碳，环境友好，低成本，不易燃，化学良性的气体。该方法形成了具有非常高的细胞密度（> 10 9个细胞/ cc）的微孔泡沫，并且可以通过控制CO 2含量，熔体和模头温度以及压降速率来实现小单元尺寸（<5微米）。

2. 发明申请

US20070117873A1 CARBON NANOFIBER REINFORCED THERMOPLASTIC NANOCOMPOSITE FOAMS 审中-公开
标题翻译：碳纳米纤维增强热塑性纳米复合材料
公开(公告)号：US20070117873A1
公开(公告)日：2007-05-24
申请号：US11383366
申请日：2006-05-15
申请人： L. Lee , Jiong Shen , Changchun Zeng , Xiangmin Han
发明人： L. Lee , Jiong Shen , Changchun Zeng , Xiangmin Han
IPC分类号： C08J9/00
CPC分类号： C08F2/44 , B82Y30/00 , C08J9/0066 , C08J9/0071 , C08J9/0085
摘要： With extraordinary mechanical properties, carbon nanofibers (CNF) serve as reinforcements for both lightweight and ultra strong composite materials. CNF was used as the reinforcing nanoelements to synthesize polystyrene (PS)/CNF nanocomposites by the in-situ polymerization process. The obtained composites were further foamed using supercritical CO2 as the foaming agent. A homogeneous dispersion of CNF was observed and the final PS/CNF nanocomposite foam showed microcellular foam morphology.
摘要翻译：碳纳米纤维具有非凡的机械性能，可用作轻质和超强复合材料的增强材料。 CNF作为增强纳米元素，通过原位聚合过程合成聚苯乙烯（PS）/ CNF纳米复合材料。使用超临界CO 2 N 2作为发泡剂进一步发泡得到的复合材料。观察到CNF的均匀分散体，最终的PS / CNF纳米复合泡沫体显示出微孔泡沫形态。

3. 发明申请

US20060016556A1 Gas assisted bonding of polymers and polymer composites 有权
公开(公告)号：US20060016556A1
公开(公告)日：2006-01-26
申请号：US11155808
申请日：2005-06-17
申请人： L. Lee , David Tomasko , Yong Yang , Changchun Zeng
发明人： L. Lee , David Tomasko , Yong Yang , Changchun Zeng
IPC分类号： B29C65/00
CPC分类号： B29C65/006 , B29C65/002 , B29C65/004 , B29C65/64 , B29C66/001 , B29C66/71 , B29C66/73117 , B29C66/742 , B29C66/91411 , B29C66/91431 , B29C66/919 , B29C66/91945 , B29C66/929 , B29C66/9292 , B29C66/949 , B29K2705/00 , B29K2709/02 , B29L2031/756 , C08J5/12 , B29K2069/00 , B29K2067/046 , B29K2033/12 , B29K2025/06 , B29K2023/00
摘要： A method of bonding materials. The method comprises providing a polymer; providing a second material; contacting the polymer and the second material at a low contact pressure in the absence of a solvent or an adhesive; maintaining the polymer at a temperature less than a bulk Tg of the polymer; introducing a gas at low pressure; and bonding the polymer and the second material.

4. 发明申请

US20070179205A1 Polystyrene foam containing a modifier-free nanoclay and having improved fire protection performance 有权
标题翻译：含有不含改性剂的纳米粘土并具有改进的防火性能的聚苯乙烯泡沫
公开(公告)号：US20070179205A1
公开(公告)日：2007-08-02
申请号：US11221522
申请日：2005-09-08
申请人： Roland Loh , Mark Polasky , Yadollah Delaviz , L. Lee , Xia Cao , Jiong Shen , Bharat Patel
发明人： Roland Loh , Mark Polasky , Yadollah Delaviz , L. Lee , Xia Cao , Jiong Shen , Bharat Patel
IPC分类号： C08J9/16
CPC分类号： C08J9/0066 , C08J9/008 , C08J9/20 , C08J9/232 , C08J2201/03 , C08J2203/14 , C08J2325/06
摘要： Polymer extruded or expanded foams that contain modifier-free nanoclays are provided. The addition of modifier-free nano-clays to extruded or expanded foam products improves the thermal properties, mechanical properties, and fire performance properties. Water or a water-containing compound is used as a carrier for the modifier-free nanoclays. The final foamed products may be utilized in building application such as foamed insulation products and in underground applications such as highway insulation. A preferred modifier-free nanoclay is Na+MMT. Modifier-free nanoclay particles may be injected into a polymer during an extrusion foaming process. In another embodiment of the invention, polymer beads containing water/nanoclay particles are formed using inverse emulsion/suspension polymerizations and expanded or extruded into a foamed product. In a further embodiment, a modifier-free nanoclay particle is encapsulated in a super-absorbent material, which may be used in an expanding or extruding process.
摘要翻译：提供了含有不含改性剂的纳米粘土的聚合物挤压或膨胀泡沫。向挤出或膨胀的泡沫产品中加入无改性剂的纳米粘土改善了热性能，机械性能和防火性能。使用水或含水化合物作为不含改性剂的纳米粘土的载体。最终的发泡产品可用于建筑应用，例如泡沫绝热产品和地下应用如公路绝缘。优选的不含修饰剂的纳米粘土是Na + MMT。在挤出发泡过程中，可以将无修饰剂的纳米粘土颗粒注入聚合物中。在本发明的另一个实施方案中，使用反相乳液/悬浮聚合形成含有水/纳米粘土颗粒的聚合物珠，并膨胀或挤出成发泡产品。在另一个实施方案中，将不含改性剂的纳米粘土颗粒包封在超吸收材料中，其可用于膨胀或挤出过程。

5. 发明申请

US20070113908A1 VALVE FOR MICROFLUIDIC CHIPS 审中-公开
标题翻译：微流控阀
公开(公告)号：US20070113908A1
公开(公告)日：2007-05-24
申请号：US11561149
申请日：2006-11-17
申请人： L. Lee , Chunmeng Lu , Yi-Je Juang
发明人： L. Lee , Chunmeng Lu , Yi-Je Juang
IPC分类号： F15C1/06
CPC分类号： F16K99/0017 , B01L3/502738 , B01L2300/0806 , B01L2300/166 , B01L2400/0409 , B01L2400/0688 , F16K99/0001 , F16K99/0034 , F16K99/0057 , F16K2099/0084 , Y10T137/2224
摘要： A valve is provided for use in a microfluidic platform. The valve is preferably a superhydrophobic fishbone valve that comprises a channel and at least one branch in continuous contact with the channel. The channel has two sidewalls, an inlet, and an outlet. The branch extends outwardly and substantially perpendicularly from each sidewall of the channel. In further embodiments, the number of branches is from one to five. The sidewalls and the walls of the branch(es) preferably have a fluorine coating. The valve retains superhydrophobicity even after exposure to a protein solution.
摘要翻译：提供用于微流体平台的阀。阀优选地是超疏水鱼骨阀，其包括通道和与通道连续接触的至少一个分支。通道有两个侧壁，一个入口和一个出口。分支从通道的每个侧壁向外且基本垂直地延伸。在另外的实施例中，分支数为1至5。分支的侧壁和壁优选具有氟涂层。即使在暴露于蛋白质溶液之后，阀也保持超疏水性。

6. 发明申请

US20060017933A1 Heterodyne laser interferometer with porro prisms for measuring stage displacement 审中-公开
标题翻译： Heterodyne激光干涉仪与porro棱镜测量级位移
公开(公告)号：US20060017933A1
公开(公告)日：2006-01-26
申请号：US10897467
申请日：2004-07-23
申请人： W. Schluchter , L. Lee
发明人： W. Schluchter , L. Lee
IPC分类号： G01B9/02
CPC分类号： G01B9/02058 , G01B9/02003 , G01B2290/15 , G01B2290/70
摘要： An interferometer system for measuring a displacement along a first direction includes (1) a measurement roof optic (e.g., a porro prism) mounted to a stage translatable along the first direction, (2) a polarizing beam splitter having (a) a first face opposite the measurement roof optic and (b) a second face opposite the first face, (3) a first wave plate located between the measurement roof optic and the first face of the polarizing beam splitter, and (4) a redirecting optic located opposite the first face of the polarizing beam splitter. A measurement path through the system includes only segments located substantially in a plane defined by the first direction and a second direction orthogonal to the first direction.
摘要翻译：一种用于测量沿着第一方向的位移的干涉仪系统包括：（1）安装到沿着第一方向可平移的台架的测量屋顶光学器件（例如，孔棱镜），（2）偏振分束器，其具有（a）第一面（b）与第一面相对的第二面，（3）位于测量屋顶光学元件与偏振光束分离器的第一面之间的第一波片，以及（4）位于测量屋顶光学元件偏振分束器的第一面。通过系统的测量路径仅包括基本上位于由第一方向限定的平面中的分段和与第一方向正交的第二方向。

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