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    HOLLOW FIBER MEMBRANES WITH NUCLEATING AGENT AND METHODS OF MAKING AND USING THE SAME
    6.
    发明申请
    HOLLOW FIBER MEMBRANES WITH NUCLEATING AGENT AND METHODS OF MAKING AND USING THE SAME 审中-公开

    公开(公告)号：WO2020136568A1

    公开(公告)日：2020-07-02

    申请号：PCT/IB2019/061311

    申请日：2019-12-23

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： LIN, Kuan-Yin ,  DELOZIER, James C. ,  MERCELAT, Aurore Y.J. ,  MCCORMICK, Mark ,  ZHOU, Jinsheng

    IPC: B01D69/08 ,  B01D71/26 ,  B01D61/00 ,  B01D67/00 ,  B01D19/00 ,  B01D53/22 ,  B41J2/19

    Abstract: Hollow fiber membranes, membrane contactors, and related production and use methods. The membranes include a substrate having a multiplicity of pores and a skin layer overlaying the porous substrate. The porous substrate includes a first semi -crystalline thermoplastic polyolefin (co)polymer resin and a nucleating agent in an amount effective to achieve nucleation. The skin layer includes a second semi-crystalline thermoplastic polyolefin (co)polymer resin derived by polymerizing at most 98 wt. % of 4-methyl-1-pentene monomer with at least 2 wt. % of linear or branched alpha olefin monomers. Preferably, the first thermoplastic polyolefin (co)polymer is different from the second thermoplastic polyolefin (co)polymer. The skin layer is less porous than the porous substrate and forms an outer surface of the hollow fiber with the porous substrate forming an inner surface. The hollow fibers are formed by co-extruding the porous substrate resin and the skin layer resin through an annular die.

    NONPLANAR PATTERNED NANOSTRUCTURED SURFACE AND PRINTING METHODS FOR MAKING THEREOF
    7.
    发明申请
    NONPLANAR PATTERNED NANOSTRUCTURED SURFACE AND PRINTING METHODS FOR MAKING THEREOF 审中-公开

    公开(公告)号：WO2019130221A1

    公开(公告)日：2019-07-04

    申请号：PCT/IB2018/060624

    申请日：2018-12-26

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： ZHU, James ,  STENSVAD, Karl K. ,  LENTZ, Daniel M. ,  METZLER, Thomas J. ,  DAVID, Moses M.

    IPC: B41C1/18 ,  B41F17/00 ,  B41K1/22 ,  B41F3/26 ,  B41K3/26 ,  B41M1/00 ,  B81C1/00

    Abstract: A method of applying a pattern to a nonplanar surface. A stamp has a major surface with pattern elements having a lateral dimension of greater than 0 and less than about 5 microns. The major surface of the stamp has a functionalizing molecule with a functional group selected to chemically bind to the nonplanar surface. The stamp is positioned to initiate rolling contact with the nonplanar surface, and contacts the nonplanar surface to form a self-assembled monolayer (SAM) of the functionalizing material thereon and impart the arrangement of pattern elements thereto. The major surface of the stamp is translated with respect to the nonplanar surface such that: a contact pressure is controlled at an interface between the stamping surfaces and the nonplanar surface, and a contact force at the interface is allowed to vary while the stamping surfaces and the nonplanar surface are in contact with each other.

    FIBERS INCLUDING A CRYSTALLINE POLYOLEFIN AND A HYDROCARBON TACKIFIER RESIN, AND PROCESS FOR MAKING SAME
    8.
    发明申请
    FIBERS INCLUDING A CRYSTALLINE POLYOLEFIN AND A HYDROCARBON TACKIFIER RESIN, AND PROCESS FOR MAKING SAME 审中-公开

    公开(公告)号：WO2019027866A1

    公开(公告)日：2019-02-07

    申请号：PCT/US2018/044301

    申请日：2018-07-30

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： JOSEPH, Eugene G. ,  BATRA, Saurabh ,  REN, Liyun ,  TALWAR, Sachin ,  ROMANO, Michael D. ,  BERRIGAN, Michael R.

    IPC: D01D5/08 ,  D04H3/007 ,  D04H5/00

    Abstract: Nonwoven fibrous webs including a multiplicity of (co)polymeric fibers made of a mixture including from about 50% w/w to about 99% w/w of at least one crystalline polyolefin (co)polymer, and from about 1% w/w to about 40% w/w of at least one hydrocarbon tackifier resin. A process for making the nonwoven fibrous webs includes heating the foregoing mixture to at least a Melting Temperature of the mixture to form a molten mixture, extruding this molten mixture through at least one orifice to form at least one filament, applying a gaseous stream to attenuate the at least one filament to form a plurality of discrete, discontinuous fibers, and cooling the plurality of discrete, discontinuous fibers to a temperature below the Melting Temperature and collecting the discrete discontinuous fibers as a nonwoven fibrous web. The nonwoven fibrous webs exhibit a Heat of Fusion measured using Differential Scanning Calorimetry of greater than 50 Joules/g.

    METHODS OF MAKING FIBRIN COMPOSITIONS AND ARTICLES
    10.
    发明申请
    METHODS OF MAKING FIBRIN COMPOSITIONS AND ARTICLES 审中-公开
    制备纤维蛋白组合物和制品的方法

    公开(公告)号：WO2018067532A1

    公开(公告)日：2018-04-12

    申请号：PCT/US2017/054892

    申请日：2017-10-03

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： O'HARE, Jonathan J. ,  PEKUROVSKY, Mikhail L. ,  DETERMAN, Amy S. ,  PITERA, Gino L. ,  BJORK, Jason W. ,  NORTON, Daniel V. ,  ASMUS, Robert A.

    IPC: A61F13/00 ,  B32B37/24 ,  A61L15/32

    Abstract: A method of forming a fibrin hydrogel composition including providing one or more unitary masses of a fibrin hydrogel, dividing at least one of the unitary masses of the fibrin hydrogel into a multiplicity of smaller pieces of the fibrin hydrogel, and recombining at least a portion of the smaller pieces into a cohesive mass. Dividing at least one of the unitary masses of fibrin hydrogel into a multiplicity of smaller pieces may include shearing or cutting the unitary masses to form an aqueous dispersion of the fibrin hydrogel in an aqueous medium. The aqueous dispersion of fibrin hydrogel may be applied to a substrate on a roller or an endless belt, and is optionally overlaid by a scrim. The cohesive mass of fibrin hydrogel, which may be formed by removing at least a portion of the aqueous medium from the aqueous dispersion of the smaller pieces of the fibrin hydrogel, finds uses in wound dressing articles.

    Abstract translation: 一种形成纤维蛋白水凝胶组合物的方法，包括提供一个或多个纤维蛋白水凝胶的单一团块，将纤维蛋白水凝胶的单一团块中的至少一个分成多个纤维蛋白水凝胶的较小片段 并且将至少一部分小块重新组合成粘性物质。 将至少一个单一纤维蛋白水凝胶块分成多个小块可包括剪切或切割整体块以形成纤维蛋白水凝胶在水性介质中的水分散体。 纤维蛋白水凝胶的水分散体可以施加到辊或环形带上的基底上，并且任选地被稀松布覆盖。 可以通过从纤维蛋白水凝胶的较小部分的水分散体中除去至少一部分水性介质而形成的纤维蛋白水凝胶的粘着块可用于伤口敷料制品。

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