公开(公告)号：WO0156783A8

公开(公告)日：2002-11-21

申请号：PCT/US0103993

申请日：2001-02-07

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

CPC classification number: B32B27/08 ,  B29C47/0023 ,  B29C47/0026 ,  B29C47/061 ,  B32B7/02 ,  B32B27/306 ,  B32B27/32 ,  B32B27/34 ,  B32B2250/24 ,  B32B2307/7242 ,  B32B2323/043 ,  B32B2323/046 ,  B32B2329/04 ,  B32B2377/00 ,  B32B2535/00 ,  C08L23/08 ,  C08L23/0853 ,  C08L23/0869 ,  C08L23/10 ,  C08L25/04 ,  C08L53/00 ,  C08L53/02 ,  Y10T428/1314 ,  Y10T428/1379 ,  Y10T428/1383 ,  Y10T428/2874 ,  Y10T428/2878 ,  Y10T428/2883 ,  Y10T428/2887 ,  Y10T428/2891 ,  Y10T428/2896 ,  Y10T428/31573 ,  Y10T428/31587 ,  Y10T428/3175 ,  Y10T428/31757 ,  Y10T428/31909 ,  Y10T428/31913 ,  Y10T428/31917 ,  Y10T428/31924 ,  Y10T428/31928 ,  Y10T428/31931 ,  Y10T428/31935 ,  Y10T428/31938 ,  C08L2666/04

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 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.

Abstract translation: 本发明提供了选自聚丙烯，密度为约0.930g / cc至约0.960g / cc的乙烯均聚物的（1）表层的多层热塑性结构，以及密度为 约0.930g / cc至约0.960c / cc与乙烯和密度小于约0.930g / cc的α-烯烃共聚物共混，所述表层具有大于约3.0密耳的厚度; （2）粘附于皮肤层的无线电频率敏感层，在1-60MHz和环境温度至250℃的介电损耗大于0.05的无线电频率敏感层，所述射频敏感层具有：（a ）选自聚丙烯和聚丙烯共聚物的第一种聚烯烃，（b）选自乙烯共聚物，超低密度聚乙烯，聚丁烯和丁烯乙烯共聚物的第二种聚烯烃; （c）选自以下的射频敏感聚合物：（i）具有50-85％乙烯含量的共聚单体的乙烯共聚物选自丙烯酸，甲基丙烯酸，丙烯酸的酯衍生物与具有1个 -10碳，甲基丙烯酸与具有1-10个碳的醇的酯衍生物，乙酸乙烯酯和乙烯醇（ii）含有至少一个部分的氨基甲酸酯，酯，脲，酰亚胺，砜和酰胺的均聚物和共聚物和（ d）苯乙烯和烃共聚物的相容剂; 其中当制造成50ml容器时的结构在容器在121℃高压灭菌20分钟后具有小于8重量％的水蒸汽透过率，并在相对湿度为15％的环境调节室中储存90天 湿度在40℃

公开(公告)号：AT364571T

公开(公告)日：2007-07-15

申请号：AT04801900

申请日：2004-07-21

Applicant: BAXTER INT

Inventor： DANBY HAL C ,  SCHARF MICHAEL ,  SWAN JULIAN ,  BACEHOWSKI DAVID

IPC: B67D1/04 ,  B65D77/30 ,  B65D81/32 ,  B67D1/00 ,  B67D1/10 ,  F04B13/02 ,  F04B43/02 ,  F04B43/06

Abstract: A flexible bag having expansible and collapsible cells can be used in a liquid dispenser. A rigid manifold, and in one instance a rigid frame is provided in the bag to keep passages open in use and to isolate one of the cells from the remaining cells. The manifold is capable of altering the volume of one of the cells so that the same bag can be used in different applications.

公开(公告)号：BR0107948A

公开(公告)日：2002-10-22

申请号：BR0107948

申请日：2001-02-07

Applicant: BAXTER INT

Inventor： LING MICHAEL T K ,  WOO LECON ,  WOJNAROWSKI ROBERT ,  SHAH KETAN ,  NEBGEN GREGG ,  DING YUAN-PAG SAMUEL ,  KALYANKAR VARSHA ,  ANDERSON KEITH M K ,  ZAKARIJA LILLIAN 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: 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.

公开(公告)号：AU3675601A

公开(公告)日：2001-08-14

申请号：AU3675601

申请日：2001-02-07

Applicant: BAXTER INT

Inventor： LING MICHAEL T K ,  WOO LECON ,  VOJNAROWSKI 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 ,  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.

公开(公告)号：AT366182T

公开(公告)日：2007-07-15

申请号：AT01908946

申请日：2001-02-07

Applicant: BAXTER INT

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

IPC: A61L31/00 ,  B32B27/08 ,  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.

公开(公告)号：AU769848B2

公开(公告)日：2004-02-05

申请号：AU3675601

申请日：2001-02-07

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 ,  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.

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.

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.

公开(公告)号：CA2395063A1

公开(公告)日：2001-08-09

申请号：CA2395063

申请日：2001-02-07

Applicant: BAXTER INT

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

IPC: A61L31/00 ,  B32B27/08 ,  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 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~C, the radio frequency susceptible layer having: (a) a first polyolefin selecte d 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 ofmethacrylic 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 vap or 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.

公开(公告)号：DE69111760T2

公开(公告)日：1996-05-02

申请号：DE69111760

申请日：1991-06-21

Applicant: BAXTER INT

Inventor： PACKARD JEFFREY ,  SCHNELL WILLIAM ,  SCHARF MICHAEL

IPC: A61J1/10 ,  A61J1/00 ,  A61J1/05 ,  A61J1/14 ,  A61M39/02

Abstract: A port and closure assembly for a container is provided. The port and closure assembly includes a port having a tubular portion that extends from a base and terminates at an end including an opening. The tubular portion is divided into an upper and lower section by a pierceable membrane. The upper section including an end that terminates at the opening and including a resealing injection site. A closure member for removably surrounding at least a portion of the end of the port including the opening is provided. The closure includes a sleeve that circumscribes at least a portion of an outer surface of the upper section of the tubular portion. The sleeve is so constructed and arranged as to cause portions of the upper section to contact the resealing member during a sterilization step that softens the portions and further causes the portions of the upper section to retain the resealing injection site within the tubular portion after the portions have hardened.