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    Method of making a prosthetic valve and valve obtained therewith
    101.
    发明授权
    Method of making a prosthetic valve and valve obtained therewith 有权

    公开(公告)号：US11266498B2

    公开(公告)日：2022-03-08

    申请号：US16548752

    申请日：2019-08-22

    Applicant: DSM IP ASSETS B.V.

    Inventor： Paul Frederik Grundeman ,  Jolanda Kluin ,  Karlien Kristel Boon-Ceelen ,  Thomas König

    IPC: A61F2/24

    Abstract: The present invention provides a method of making a leaflet assembly, the leaflet assembly thus made and a prosthetic valve. The leaflet assembly can take a first form wherein the valve is open and a second form wherein the valve is closed, the valve comprising a leaflet assembly having at least one leaflet attached to a supporting element, the leaflet having a free margin that can move between a first position wherein the valve takes the first form and a second position wherein the valve takes the second form, the method comprising providing a textile structure, and forming the leaflet assembly from the textile structure, such that a selvedge of the textile structure forms the free margin of the leaflet, wherein the textile structure is made by weaving warp and fill threads into a two-layer woven fabric having two stacked and interconnected layers, the two layers having selvedges at one longitudinal edge, and wherein forming the leaflet assembly comprises connecting two lateral edges of a single piece of the fabric to make a substantially tubular structure wherein the inner layer forms the leaflet and the outer layer forms the supporting element. With this method a prosthetic valve can be made with little process variability and errors, and resulting in a valve with high reliability and durability.

    Hybrid chain link
    103.
    发明授权
    Hybrid chain link 有权

    公开(公告)号：US11242625B2

    公开(公告)日：2022-02-08

    申请号：US15572146

    申请日：2016-05-27

    Applicant: DSM IP ASSETS B.V.

    Inventor： Rigobert Bosman ,  Dietrich Wienke ,  Roelof Marissen ,  Jozef Siegfried Johannes Homminga

    IPC: D03D3/00 ,  F16G13/12 ,  F16G15/12 ,  D03D7/00

    Abstract: The present invention relates to a chain link comprising a strip comprising warp yarns and weft yarns, with the warp yarns containing warp yarn A and warp yarn B, with the minimum creep rate of warp yarn B being higher than the minimum creep rate of warp yarn A, wherein the strip comprises a longitudinal core section and at least two longitudinal edge sections, and wherein the concentration of warp yarn A in the core section is higher than the concentration of yarn A in the edge sections of the strip and the concentration of warp yarn B in the edge sections is higher than the concentration of warp yarn B in the core section of the strip. The invention also relates to a chain comprising said chain link and to use of said chain in different applications.

    BLOW MOLDED PLASTIC CONTAINER AND GAS STORAGE TANK COMPRISING THE BLOW MOLDED PLASTIC CONTAINER AS A LINER
    105.
    发明申请
    BLOW MOLDED PLASTIC CONTAINER AND GAS STORAGE TANK COMPRISING THE BLOW MOLDED PLASTIC CONTAINER AS A LINER 有权

    公开(公告)号：US20220024106A1

    公开(公告)日：2022-01-27

    申请号：US17413151

    申请日：2019-12-10

    Applicant: DSM IP ASSETS B.V.

    Inventor： Jan STOLK ,  Vinayak KHATAVKAR

    IPC: B29C49/04 ,  B60K15/03 ,  B29C49/00 ,  C08L77/06 ,  C08L77/02 ,  C08K3/34 ,  B29C49/20 ,  C08K7/06 ,  C08K7/14

    Abstract: The present invention relates to a blow molded plastic container and to a polymer composition from which the blow molded plastic container is made. The blow molded plastic container comprises a pinched seamline and is made by an extrusion blow molding process comprising a pinch step. The present invention also relates to a gas storage tank, comprising the blow molded plastic container as a liner. The polymer composition comprises (a) a polyamide consisting of a copolyamide consisting of repeat units derived from lactam, diamine and dicarboxylic acid, and optionally chain stoppers or branching units or a combination thereof, or of a blend of at least two polyamides, comprising at least one polyamide comprising repeat units derived from lactam, and at least one polyamide comprising repeat units derived from diamine and dicarboxylic acid, and comprising 75-97.5 mole % caprolactam and 1-12 mole % monomer having an aromatic ring, (b) a heat stabilizer and (c) impact modifier.

    COSMETIC COMPOSITION COMPRISING SPECIFIC HYPERBRANCHED COPOLYMERS AND ORGANIC UV FILTERS
    106.
    发明申请
    COSMETIC COMPOSITION COMPRISING SPECIFIC HYPERBRANCHED COPOLYMERS AND ORGANIC UV FILTERS 有权

    公开(公告)号：US20220023190A1

    公开(公告)日：2022-01-27

    申请号：US17296486

    申请日：2019-11-26

    Applicant: DSM IP ASSETS B.V.

    Inventor： Christine MENDROK-EDINGER

    IPC: A61K8/88 ,  A61Q17/04

    Abstract: The present invention relates to cosmetic compositions which comprise a hyperbranched copolymer of the monomers dodecenyl succinic acid anhydride, diisopropanol amine and bis-dimethylaminopropyl amine having quaternary terminal groups and a liquid and/or solid organic UV-filter. The copolymer is used in a cosmetic composition comprising the UV-filter for reducing the material transfer to a contacted surface. Preferably the copolymer is polyquatemium-110.

    HIGH-PERFORMANCE POLYETHYLENE MULTIFILAMENT YARN
    107.
    发明申请
    HIGH-PERFORMANCE POLYETHYLENE MULTIFILAMENT YARN 有权

    公开(公告)号：US20220018040A1

    公开(公告)日：2022-01-20

    申请号：US17336040

    申请日：2021-06-01

    Applicant: DSM IP ASSETS B.V.

    Inventor： Joseph Arnold Paul Maria SIMMELINK ,  Jacobus Johannes MENCKE ,  Martinus Johannes Nicolaas JACOBS ,  Roeloef MARISSEN

    IPC: D01F6/04 ,  A61L17/04 ,  A61L27/16 ,  D01D4/02 ,  D02G3/02 ,  F41H5/04 ,  D01D5/18 ,  C08F10/02

    Abstract: Processes for making high-performance polyethylene multi-filament yarn are disclosed which include the steps of a) making a solution of ultra-high molar mass polyethylene in a solvent; b) spinning of the solution through a spinplate containing at least 5 spinholes into an air-gap to form fluid filaments, while applying a draw ratio DRfluid; c) cooling the fluid filaments to form solvent-containing gel filaments; d) removing at least partly the solvent from the filaments; and e) drawing the filaments in at least one step before, during and/or after said solvent removing, while applying a draw ratio DRsolid of at least 4, wherein in step b) each spinhole comprises a contraction zone of specific dimension and a downstream zone of diameter Dn and length Dn with Ln/Dn of from 0 to at most 25, to result in a draw ratio DRfluid=DRsp*DRag of at least 150, wherein DRsp is the draw ratio in the spinholes and DRag is the draw ratio in the air-gap, with DRsp being greater than 1 and DRag at least 1. High-performance polyethylene multifilament yarn, and semi-finished or end-use products containing said yarn, especially to ropes and ballistic-resistant composites, are also disclosed.

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