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公开(公告)号：US5750882A
公开(公告)日：1998-05-12
申请号：US832824
申请日：1997-04-04
IPC分类号： G01N15/08
CPC分类号： G01N15/0826 , Y10T428/231
摘要： Method and apparatus for measuring the permeability of polymer film materials such as used in super-insulation powder-filled evacuated panels (PEPs) reduce the time required for testing from several years to weeks or months. The method involves substitution of a solid non-outgassing body having a free volume of between 0% and 25% of its total volume for the usual powder in the PEP to control the free volume of the "body-filled panel". Pressure versus time data for the test piece permit extrapolation to obtain long term performance of the candidate materials.
摘要翻译： 用于测量聚合物膜材料的渗透性的方法和装置，例如用于超绝缘粉末填充的抽空板（PEP）中的渗透性，可将测试所需的时间从数年到数周或数月减少。 该方法包括用于PEP中通常的粉末的自由体积为其总体积的0％至25％之间的固体非放气体，以控制“体内填充面板”的自由体积。 试件的压力与时间的数据允许推断以获得候选材料的长期性能。
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公开(公告)号：US3992854A
公开(公告)日：1976-11-23
申请号：US659102
申请日：1976-02-18
CPC分类号： B65B9/2028 , B65B29/10 , B65B51/04 , B65B61/02 , B65B9/2035 , B65B9/213 , B65D81/3261 , B65B2230/02 , B65B9/2007 , B65B9/2056
摘要： An apparatus for continuously producing a series of multi-compartment packages formed from a single web of pliable film material. The machine folds the web along one of its side edges to form a pocket or two-ply margin. The web is then passed through a tube former which bends the web across its width until a continuous tube is formed with the two-ply margin to the inside and overlapped by the opposing side edge of the web. The apparatus then seals the tube with a single composite seal across the overlapped portion of the tube, which is of three-ply thickness. Next, the apparatus positions differing substances in each compartment. Then, the apparatus sequentially gathers the filled tubular member at two positions along its length, seals the gathered portions by clinching pairs of closure clips therearound, and severs the film material between the clips in each pair thereof to form the package.
摘要翻译： 一种用于连续生产由柔性薄膜材料的单个腹板形成的一系列多室包装的设备。 机器沿着其侧边缘之一折叠卷材以形成袋或双层边缘。 纸幅然后通过管形成器，其将纸幅横过其宽度弯曲，直到连续的管形成有两层边缘到内部并且与纸幅的相对侧边缘重叠。 然后，该装置用管道的重叠部分上的单层复合密封件密封管，其具有三层厚度。 接下来，该装置在每个隔室中定位不同的物质。 然后，该装置顺序地将填充的管状构件沿着其长度的两个位置收集，并通过夹紧围绕其的一对封闭夹紧件来密封聚集的部分，并且在每对夹子之间切割薄膜材料以形成包装。
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3.发明授权Polymeric membranes and other polymer articles having desired surface characteristics and method for their preparation 有权聚合物膜和具有所需表面特性的其它聚合物制品及其制备方法公开(公告)号：US06413621B1
公开(公告)日：2002-07-02
申请号：US09258526
申请日：1999-02-26
IPC分类号： B01D6700
CPC分类号： C08J3/005 , B01D67/0011 , B01D69/141 , B01D71/34 , B01D71/40 , B01D71/82 , B01D2323/12 , B01D2323/30 , B01D2325/38 , B01J45/00 , Y10T428/24942 , Y10T428/249953 , Y10T428/249961 , Y10T428/249978 , Y10T428/31 , Y10T428/31928 , Y10T428/31935
摘要： Polymeric articles, including membranes, with surfaces having a desired chemical functionality are created by surface segregation of a branched component blended with a compatible, matrix base component, the branched component having the desired chemical functionality. In particular, hydrophilic surfaces are created via surface segregation of a branched hydrophilic copolymer blended into a polymer matrix. The use of branched molecular architecture provides a thermodynamic mechanism for the segregation of the hydrophilic species to the surface and a means for achieving a high surface coverage of the hydrophilic moiety. The branched hydrophilic copolymer can be defined by a random copolymer including two or more methacrylate or acrylate monomers, at least one of which features a short hydrophilic side chain, such as a polyethylene glycol side chain. The branched hydrophilic copolymer is compatible, and well-entangled, with the acrylate polymer matrix.
摘要翻译： 通过与相容的基质基质组分共混的支化组分的表面分离产生具有所需化学官能度的表面的聚合制品，包括膜，所述支化组分具有所需的化学官能度。 特别地，亲水性表面是通过共聚到聚合物基质中的支化亲水共聚物的表面偏析产生的。 支链分子结构的使用为亲水性物质与表面的分离提供了一种热力学机制，也是实现亲水部分高表面覆盖度的手段。 支链亲水共聚物可以通过包括两种或更多种甲基丙烯酸酯或丙烯酸酯单体的无规共聚物来限定，其中至少一种具有短亲水侧链如聚乙二醇侧链。 支链亲水共聚物与丙烯酸酯聚合物基质相容并且良好缠结。
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