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Sterilized polyetherimide articles

一种聚醚酰亚胺、制品的技术，应用在消毒的聚醚酰亚胺制品领域

Inactive Publication Date: 2014-04-16
SABIC GLOBAL TECH BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Thus, plastic parts exposed to repeated hydrogen peroxide plasma sterilization are subjected to the action of ionized acidic vapors from the hydrogen peroxide plasma, both on the surface of the molded article and below the surface of the article (by diffusion) repeated serious challenges

Method used

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  • Sterilized polyetherimide articles
  • Sterilized polyetherimide articles
  • Sterilized polyetherimide articles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0068] Embodiment 1: A sterilized article comprising a sterilized polymer composition comprising polyetherimide, the polymer composition being treated with an and members of their combinations, the polyetherimide has less than 100 ppm of amine end groups; wherein the polyetherimide has a weight average molecular weight of 10,000 to 80,000 Daltons; wherein the polyetherimide Imines include repeating units of the formula

[0069] The sterilized article of any one of the preceding embodiments, wherein the polyetherimide comprises repeating units of the formula

[0070]

[0071] where R is a divalent group of the formula

[0072]

[0073] Or their combination, wherein Q is selected from -O-, -S-, -C(O)-, -SO 2 -, -SO- and -C y h 2y -, wherein y is an integer from 1 to 5; and T is -O- or a group of formula -O-Z-O-, wherein the divalent bond of the -O- or -O-Z-O- group is at 3,3', 3,4 ', 4,3' or 4,4' positions and Z is a divalent group of the formula

[0074]

[0075]...

Embodiment approach 2

[0076] Embodiment 2: The sterilized article of Embodiment 1, wherein after exposure to 100 hydrogen peroxide plasma disinfection cycles, relative to the color of the polymer composition prior to the first hydrogen peroxide plasma disinfection cycle , the color of the polymer composition exhibits a color shift ΔE of 10 units or less, wherein ΔE is measured in accordance with ASTM D2244, said hydrogen peroxide plasma sterilization at 20 to 55°C using hydrogen peroxide vapor and peroxide The mixture of hydrogen plasma was maintained for 30 minutes.

Embodiment approach 3

[0077] Embodiment 3: The sterilized article of Embodiment 2, wherein the delta E of the polymer composition after exposing the article to 100 hydrogen peroxide plasma sterilization cycles is less than 5 units.

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Abstract

Provided is a sterilized article comprising a sterilized or hydrogen peroxide vapor-sterilized polymer composition, the polymer composition comprising a polyetherimide, wherein after exposure to 100 cycles of the hydrogen peroxide plasma sterilization using a mixture of hydrogen peroxide vapor and hydrogen peroxide plasma for 30 minutes at 20 to 55 DEG C, the color of the polymer composition of the article exhibits a color shift of delta E of 10 units or less relative to the color of the polymer composition color before the first hydrogen peroxide plasma sterilization cycle, wherein delta E is measured in accordance with ASTM D2244.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of filing US Provisional Patent Application Serial No. 61 / 493,163, filed June 3, 2011, which is hereby incorporated by reference in its entirety. Background technique [0003] The present disclosure relates to articles formed from polyetherimide compositions. [0004] Hydrogen peroxide plasma disinfection devices are known, for example as described in US Patent 4,643,876. The article to be sterilized is placed in the plasma chamber, the chamber is closed, and a vacuum is drawn in the chamber to remove the gas in the chamber. An aqueous solution of hydrogen peroxide is typically injected into the chamber to raise the pressure in the chamber to the desired level. The hydrogen peroxide remains in the chamber for a period of time sufficient for the hydrogen peroxide to come into intimate contact with the article to be sterilized before the power level generated by the plasma is sufficien...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/12A61L2/14A61L2/20
CPCA61L2/14C08J2379/08C08J7/123A61L2202/24A61L2/208Y10T428/24479Y10T428/13Y10T428/1352
Inventor M.S.戴维斯R.R.加卢奇S.李M.A.桑纳
Owner SABIC GLOBAL TECH BV
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