WATER DISPERSIBLE PRODUCTS
    43.
    发明公开
    WATER DISPERSIBLE PRODUCTS 审中-公开
    水基产品

    公开(公告)号:EP1682720A2

    公开(公告)日:2006-07-26

    申请号:EP04817498.1

    申请日:2004-10-29

    IPC分类号: D21H11/12

    摘要: Water dispersible fiber products are provided. In one embodiment, a water dispersible fiber sheet is provided and it is preferably formed from regenerated cellulose fibers, a second fiber that is adapted to provide strength to the water dispersible fiber sheet, and a water soluble binder. In use, the fiber sheet can be formed into a variety of products including, for example, for labels, packaging, medical and health care products. The fiber sheet is particularly advantageous in that it is readily dispersible upon contact with water, yet it will retain its strength when used with other fluids, such as alcohol and oils. The biodegradability of the fiber sheet will also allow the fibers to be consumed naturally by environmental bacteria, thus eliminating the need for special disposal procedures. In another embodiment, the water dispersible fiber sheet can be incorporated into a filter media.

    FILTERMATERIAL, INSBESONDERE IN FORM EINER TIEFENFILTERSCHICHT
    48.
    发明公开
    FILTERMATERIAL, INSBESONDERE IN FORM EINER TIEFENFILTERSCHICHT 有权
    过滤材料,特别是在深层过滤器的方式

    公开(公告)号:EP1517736A1

    公开(公告)日:2005-03-30

    申请号:EP03761512.7

    申请日:2003-06-26

    IPC分类号: B01D39/16 B01D39/18

    CPC分类号: B01D39/1615 B01D39/163

    摘要: The invention relates to a filter material, especially in the form of a deep-bed filter layer, consisting of a supporting layer forming passages, a first type of plastic fibres and a pre-determinable amount of natural fibres. The first type of fibres are embodied as bicomponent fibres comprising a core which has a high melting point and is surrounded by an envelope having a lower melting point. An essentially non-shrinkable, stable filter matrix with reliable connection points can be formed without additional wetting agents or binding agents, due to the fact that the filter material contains a wet-strength agent selected from the group consisting of epichlorohydrine resins and/or melamine formaldehyde resins. Fine deposition processes can thus be carried out with said filter material for fluids, in order to separate tiny particles such as micro-organisms or proteins of liquid solutions.

    Composite filter and method of making the same
    50.
    发明公开
    Composite filter and method of making the same 有权
    Mehrschichtiger过滤器和Verfahren zu dessen Herstellung

    公开(公告)号:EP1236494A1

    公开(公告)日:2002-09-04

    申请号:EP01105152.1

    申请日:2001-03-02

    IPC分类号: B01D39/16 B01D46/12 A47L9/14

    摘要: The invention refers to a composite filter for filtering a stream of ambient air comprising at least one non-prebonded upstream tier and one non-prebonded downstream tier, wherein the ratio of absolute pore volume of upstream tier to downstream tier RAPV > 2, and the absolute projected fiber coverage of upstream tier and of downstream tier APFC > 95%.
    Further, the invention refers to a method of making such a composite filter comprising the steps of

    (a) laying down a filtration material onto a support to form the upstream non-prebonded tier,
    (b) depositing onto the upstream tier the downstream non-prebonded tier, and
    (c) bonding the tiers to form a composite filter having a unitary stratified structure.

    摘要翻译: 本发明涉及一种用于过滤环境空气流的复合过滤器,其包括至少一个非预粘合的上游层和一个非预粘合的下游层,其中上游层与下游层的绝对孔体积比RAPV> 2,以及 上游和下游APFC绝对预计纤维覆盖率> 95%。 此外,本发明涉及一种制造这种复合过滤器的方法,包括以下步骤:(a)将过滤材料铺设在支撑体上以形成上游非预粘合层,(b)在上游层上沉积下游非预粘结层, 预粘合层,和(c)粘合层以形成具有整体分层结构的复合过滤器。