发明名称 |
MULTI-LAYERED POLYMER BASED MOISTURE BARRIER STRUCTURE FOR MEDICAL GRADE PRODUCTS |
摘要 |
<p>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 c/cc blended with an ethylene and alpha -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 DEG 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 DEG C for 20 minutes and stored for 90 days in an environmentally regulated compartment having 15 % relative humidity at 40 DEG C.</p> |
申请公布号 |
WO0156783(A8) |
申请公布日期 |
2002.11.21 |
申请号 |
WO2001US03993 |
申请日期 |
2001.02.07 |
申请人 |
BAXTER INTERNATIONAL INC |
发明人 |
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. |
分类号 |
A61L31/00;B32B27/08;B32B27/32;C08L23/08;C08L23/10;C08L25/04;C08L53/00;C08L53/02;(IPC1-7):B32B27/08 |
主分类号 |
A61L31/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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