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    • 1. 发明申请
    • AMORPHOUS FLUORINATED COPOLYMER GAS SEPARATION MEMBRANES
    • 非晶荧光共聚物气体分离膜
    • WO2016201222A1
    • 2016-12-15
    • PCT/US2016/036884
    • 2016-06-10
    • COMPACT MEMBRANE SYSTEMS, INC
    • SHANGGUAN, NingFEIRING, AndrewMAJUMDAR, Sudipto
    • B01D61/38C07C7/144C07C21/18C08F214/26C08K5/02
    • B01D71/32B01D53/228B01D67/0006B01D71/52B01D71/76B01D2323/06B01D2323/08B01D2325/20C07C17/38C08F214/186C07C21/18C07C21/185
    • Membranes having a permselective active layer of a copolymerized perfluorinated monomer and an non-fluorinated alkylvinylester monomer demonstrate superior selective permeability performance for separating gas mixtures compared to membranes of exclusively perfluorinated polymers. Preferred active layer compositions are copolymers of perfluoro-2,2-dimethyl-1,3 dioxole (PDD) copolymerized with an alkylvinyl ester such as vinyl acetate, and vinyl pivalate, and with alkylvinyl esters that are substantially hydrolyzed to provide copolymerized vinyl alcohol functionality. The membranes can have a thin, high diffusion rate, "gutter layer" of a fluorinated polymer highly permeable to nitrogen positioned between the active layer and a porous support layer. A novel copolymer effective in selectively permeable membranes is a copolymer of PDD and an alkylvinyl ester compound having the formula H 2 C=CHOC(0)R 1 in which R 1 is a linear or branched alkyl group of from 2 to 5 carbon atoms.
    • 具有共聚全氟化单体和非氟化烷基乙烯基酯单体的选择性活性层的膜与专门的全氟化聚合物的膜相比,显示出优异的用于分离气体混合物的选择性渗透性能。 优选的活性层组合物是与烷基乙烯基酯如乙酸乙烯酯和新戊酸乙烯酯共聚的全氟-2,2-二甲基-1,3-二氧杂环戊烯(PDD)和基本上水解以提供共聚乙烯醇官能团的烷基乙烯基酯的共聚物 。 膜可以具有薄的高扩散速率,位于有源层和多孔支撑层之间的氮高度可渗透的氟化聚合物的“沟槽层”。 在选择性渗透膜中有效的新型共聚物是PDD和具有式H 2 C = CHOC(O)R 1的烷基乙烯基酯化合物的共聚物,其中R 1是2至5个碳原子的直链或支链烷基。
    • 4. 发明申请
    • STITCHBONDED FABRIC WITH A SLIT SUBSTRATE
    • 缝合衬垫与衬底
    • WO2008086260A1
    • 2008-07-17
    • PCT/US2008/050351
    • 2008-01-07
    • XYMID, L.L.C.ZAFIROGLU, DimitriTSIARKEZOS, Stephen
    • ZAFIROGLU, DimitriTSIARKEZOS, Stephen
    • D06H7/00
    • B32B7/08Y10T428/24058Y10T428/24132Y10T428/24314Y10T442/3472Y10T442/3707
    • A stitchbonded fabric has a substrate material of uniform composition and physical properties and stitching threads stitched through and over the extent of the substrate in which the substrate has one or more linear slits defined by opposite facing lips that are unparted when the fabric is stitched. The fabric can be tensioned such that the lips part and thereby produce varied performance characteristics such as increased stretch and aesthetically pleasing effects as are useful in fabric utilities such as mattress cover skirts. The lips can pucker to give the fabric texture. The fabric can be extended and/or contracted laterally to further buckle out of plane. The puckering and buckling give the fabric additional functional properties such as dust-catching ability in cleaning wipe utilities.
    • 针迹织物具有均匀的组成和物理性质的衬底材料,并且缝合在衬底的整个程度上的缝合线,其中衬底具有由相对的面对的唇缘限定的一个或多个线性狭缝,当缝合织物时,该狭缝未被打开。 织物可以被拉紧,使得唇部部分并且由此产生变化的性能特征,例如增加的拉伸和美观效果,如在诸如床垫罩裙的织物设备中有用的。 嘴唇可以褶皱给织物纹理。 织物可以横向延伸和/或收缩,以进一步扣除平面外。 褶皱和弯曲使织物具有清洁擦拭效用的附加功能特性,如吸尘能力。