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    Multi-layered polymer based moisture barrier structure for medical grade products
    121.
    发明专利
    Multi-layered polymer based moisture barrier structure for medical grade products 未知

    公开(公告)号：HK1053442A1

    公开(公告)日：2003-10-24

    申请号：HK03105726

    申请日：2003-08-11

    Applicant: BAXTER INT

    Inventor： LING MICHAEL T K ,  WOO LECON ,  WOJNAROWSKI ROBERT ,  SHAH KETAN ,  NEBGEN GREGG ,  DING YUAN-PANG SAMUEL ,  KALYANKAR VARSHA ,  ANDERSON KEITH M K ,  ZAKARIJA LILLIAN G ,  CRAMER COLLEEN S ,  SCHARF MICHAEL ,  ROSENBAUM LARRY A

    IPC: A61L31/00 ,  B32B27/08 ,  B32B20060101 ,  B32B27/32 ,  C08L23/08 ,  C08L23/10 ,  C08L25/04 ,  C08L53/00 ,  C08L53/02

    Abstract: The present invention provides a multiple layer thermoplastic structure of a (1) skin layer selected from the group consisting of polypropylene, ethylene homopolymers having a density of from about 0.930 g/cc to about 0.960 g/cc, and ethylene homopolymers having a density of from about 0.930 g/cc to about 0.960 g/cc blended with an ethylene and a-olefin copolymers having a density less than about 0.930 g/cc, the skin layer having a thickness of greater than about 3.0 mils; (2) a radio frequency susceptible layer adhered to the skin layer, the radio frequency susceptible layer having a dielectric loss greater than 0.05 at 1-60 MHz and at temperatures of ambient to 250° C., the radio frequency susceptible layer having: (a) a first polyolefin selected from the group consisting of polypropylene and polypropylene copolymers, (b) a second polyolefin selected from the group consisting of ethylene copolymers, ultra-low density polyethylene, polybutene, and butene ethylene copolymers; (c) a radio frequency susceptible polymer selected from the group consisting of (i) ethylene copolymers having 50-85% ethylene content with comonomers selected from a first group consisting of acrylic acid, methacrylic acid, ester derivatives of acrylic acid with alcohols having 1-10 carbons, ester derivatives of methacrylic acid with alcohols having 1-10 carbons, vinyl acetate, and vinyl alcohol (ii) homopolymers and copolymers containing at least one segment of urethanes, esters, ureas, imides, sulfones, and amides, and (d) a compatibilizing agent of a styrene and hydrocarbon copolymer; wherein the structure when fabricated into a 50 ml container has a water vapor transmission rate of less than 8% by weight after the container has been autoclaved at 121° C. for 20 minutes and stored for 90 days in an environmentally regulated compartment having 15% relative humidity at 40° C.

    ESTRUCTURA MILTICAPA BASADA EN POLIMERO, DE BARRERA DE HUMEDAD, PARA PRODUCTOS DE TIPO MEDICO
    122.
    发明专利
    ESTRUCTURA MILTICAPA BASADA EN POLIMERO, DE BARRERA DE HUMEDAD, PARA PRODUCTOS DE TIPO MEDICO 未知

    公开(公告)号：CO5241317A1

    公开(公告)日：2003-01-31

    申请号：CO01008830

    申请日：2001-02-07

    Applicant: BAXTER INT

    Inventor： LING MICHAEL T K ,  LECON WOO ,  WOJNAROWSKI ROBERT ,  KENTA SHAH ,  GREGG NEBGEN ,  YUAN-PANG SAMUEL DING ,  VARSHA KALYANKAR ,  ANDERSON KEITH M K ,  ZAKARIJA LILIAN G ,  CRAMER COLLEEN S ,  SCHARF MICHAEL ,  ROSENBAUM LARRY A

    IPC: A61L31/00 ,  B32B27/08 ,  B32B27/32 ,  C08L23/08 ,  C08L23/10 ,  C08L25/04 ,  C08L53/00 ,  C08L53/02

    Abstract: Una estructura termoplástica de múltiples capas: una capa de recubrimiento seleccionada del grupo que consiste de polipropileno, homopolímeros de etileno que tienen una densidad desde aproximadamente 0,930 g /cc a aproximadamente 0,960 g /cc, y homopolímeros de etileno que tienen una densidad desde aproximadamente 0,930 g /cc a aproximadamente 0,960 g /cc mezclados con un copolímero de etileno y alfa olefina con una densidad inferior a aproximadamente 0,930 g /cc , la capa de recubrimiento tiene un espesor superior a aproximadamente 3,0 mil; (2) una capa susceptible de radio frecuencia adherida a la capa de recubrimiento, la capa susceptible de radio frecuencia tiene una pérdida dieléctrica superior a 0,05 a 1-60 MHz y a temperaturas que van de la temperatura ambiente a 250ºC, la capa susceptible de radio frecuencia tiene:(a) una primera poliolefina seleccionada del grupo que consiste de polipropileno y copolímeros de polipropileno, (b) una segunda poliolefina seleccionada del grupo que consiste de copolímeros de etileno, polietileno de densidad ultra baja, polibuteno, y copolímeros de buteno y etileno;(c) un polímero susceptible de radio frecuencia seleccionado del grupo que consiste de (i) copolímeros de etileno que tienen 50 - 85% de contenido de etileno con co-monómeros seleccionados de un primer grupo que consiste de ácido acrílico, ácido metacrílico, derivados de éster del ácido acrílico con alcoholes que tienen 1 - 10 carbonos, derivados de éster de ácido metacrílico con alcoholes que tienen 1I - 10 carbonos, acetato de vinilo, y alcohol vinílico; (ii) homopolímeros y copolímeros que contienen por lo menos un segmento de uretano, ésteres, ureas, imidas, sulfonas, y amidas, y(d) un agente compatibilizante de un copolímero de estireno e hidrocarburo;en la cual la estructura, cuando se la fabrica en un recipiente de 50 ml tiene una tasa de transmisión de vapor de agua inferior al 8% en peso luego de que el recipiente se sometió a autoclave a 121ºC durante 20 minutos y se almacenó durante 90 días en un compartimiento regulado con el medio ambiente que tiene un 15% de humedad relativa a 40ºC. La estructura de la reivindicación 1, en la cual el copolímero de estireno e hidrocarburo es un copolímero en bloque seleccionado de copolímeros de bloques dobles, de bloques triples y bloques en forma de estrella.

    Autoclavable non-adherent, heat sealable polymer blends for fabricating monolayer and multiple layered films
    128.
    发明专利
    Autoclavable non-adherent, heat sealable polymer blends for fabricating monolayer and multiple layered films 未知

    公开(公告)号：AU8149401A

    公开(公告)日：2001-10-03

    申请号：AU8149401

    申请日：2001-03-08

    Applicant: BAXTER INT

    Inventor： WOO LECON ,  SHANG SHERWIN ,  LING MICHAEL T K ,  DING YUAN-PANG SAMUEL ,  YANG TAHUA ,  SANDFORD CRAIG ,  CHANG TAO

    IPC: B65D65/40 ,  A61J1/00 ,  A61J1/05 ,  A61J1/10 ,  A61J1/20 ,  B32B27/08 ,  B32B27/32 ,  B65D30/02 ,  B65D65/02 ,  C08J3/28 ,  C08J5/18 ,  C08L23/00 ,  C08L23/04 ,  C08L23/08 ,  C08L23/10 ,  C08L23/20 ,  C08L23/26 ,  C08L65/00

    Abstract: The present invention provides a flowable materials container. The container has a first sidewall and a second sidewall sealed together along a peripheral seam to define a fluid chamber. At least one sidewall is a film having at least one layer of blend of a first component selected from the group of: (1) ethylene and alpha-olefin copolymers having a density of less than about 0.915 g/cc, (2) ethylene copolymerized with lower alkyl acrylates, (3) ethylene copolymerized with lower alkyl substituted alkyl acrylates and (4) ionomers, the first component being present in an amount from about 99% to about 55% by weight of the blend, a second component in an amount by weight of the blend from about 45% to about 1% and consists of one or more polymers of the group: (1) propylene containing polymers, (2) polybutene polymers, (3) polymethylpentene polymers, (4) cyclic olefin containing polymers and (5) bridged polycyclic hydrocarbon containing polymers; and the film has a modulus of elasticity when measured in accordance with ASTM D882 of less than about 60,000 psi, an internal haze when measured in accordance with ASTM D1003 of less than about 25%, an internal adhesion ranking of greater than about 2, a sample creep at 120° C. under 27 psi loading of less than or equal to 150% for a film having a thickness of from about 5 mils to about 15 mils, and the film can be heat sealed into a container having seals wherein the seals remain intact when the container is autoclaved at 121° C. for one hour.

    MULTIPLE LAYER FILM OF A NEW NON-PVC MATERIAL
    129.
    发明专利
    MULTIPLE LAYER FILM OF A NEW NON-PVC MATERIAL 未知

    公开(公告)号：CA2402153A1

    公开(公告)日：2001-09-20

    申请号：CA2402153

    申请日：2001-03-16

    Applicant: BAXTER INT

    Inventor： SHANG SHERWIN ,  WOO LECON ,  DING YUAN-PANG SAMUEL ,  LING MICHAEL T K ,  SANDFORD CRAIG ,  YANG TAHUA

    IPC: B65D65/40 ,  A61J1/00 ,  A61J1/05 ,  A61J1/10 ,  A61J1/20 ,  B32B27/08 ,  B32B27/32 ,  B65D30/02 ,  B65D65/02 ,  C08J3/28 ,  C08J5/18 ,  C08L23/00 ,  C08L23/04 ,  C08L23/08 ,  C08L23/10 ,  C08L23/20 ,  C08L23/26 ,  C08L65/00 ,  B32B27/00

    Abstract: The present invention provides a flowable materials container. The container has a first sidewall and a second sidewall sealed together along a peripheral seam to define a fluid chamber. At least one sidewall is a film having at least one layer of blend of a first component selected from the group of: (1) ethylene and alpha-olefin copolymers having a density of less than about 0.915 g/cc, (2) ethylene copolymerized with lower alkyl acrylates, (3) ethylene copolymerized with lower alkyl substituted alkyl acrylates and (4) ionomers, the first component being present in an amount from about 99% to about 55% by weight of the blend, a second component in an amount by weight of the blend from about 45% to about 1% and consists of one or more polymers of the group: (1) propylene containing polymers, (2) polybutene polymers, (3) polymethylpentene polymers, (4) cyclic olefin containing polymers and (5) bridged polycyclic hydrocarbon containing polymers; and the film has a modulus of elasticity when measured in accordance with ASTM D882 of less than about 60,000 psi, an internal haze when measured in accordance with ASTM D1003 of less than about 25%, an internal adhesion ranking of greater than about 2, a sample creep at 120° C. under 27 psi loading of less than or equal to 150% for a film having a thickness of from about 5 mils to about 15 mils, and the film can be heat sealed into a container having seals wherein the seals remain intact when the container is autoclaved at 121° C. for one hour.

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