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Enhanced elastomer coated, protective barrier fabric and process for producing same

A technology for barrier fabrics, fabrics, applied in the direction of chemical instruments and methods, layered products, synthetic resin layered products, etc., can solve the problem of shortening the service life of barrier fabrics, delamination, pinhole protection performance damage, adhesives and/or or polymer adhesion failure, etc.

Inactive Publication Date: 2007-05-23
RHODIA LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0053] Although efforts to produce thinly coated barrier fabrics with the desired liquid and microbe repellency are generally acceptable, economic cost-effectiveness remains an elusive goal , due to the failure of the adhesive and / or polymer bond under severe usage conditions such as heavy wear, multiple folds and / or multiple strictly regulated wash / sanitize cycles , resulting in random delamination, pinholes and compromised barrier properties in the barrier fabric, which can significantly reduce the potential useful life of the barrier fabric

Method used

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  • Enhanced elastomer coated, protective barrier fabric and process for producing same
  • Enhanced elastomer coated, protective barrier fabric and process for producing same
  • Enhanced elastomer coated, protective barrier fabric and process for producing same

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Embodiment Construction

[0057] The present invention relates to selected cold-cure compositions and a two-step process for applying a coating of the composition to one side of a woven fabric, preferably a polyester-containing fabric.

[0058] In this way, excellent reusable barrier fabrics or barrier fabric articles can be produced; in particular, barrier fabrics or barrier fabric articles that meet the stringent technical standards required for medical virus / fluid barrier applications .

[0059] Preferably, the manner in which the soft fabric is laminated to the coated "inside" side of the woven fabric is typically: i) sewing the coated barrier fabric to a prefabricated textile process article such as a surgical gown or surgical drapes); or (ii) sewing the coated barrier fabric to the textile material before the textile material and the coated barrier fabric are made into a finished article such as the surgical gown or surgical drapes described above .

[0060] The solvent-free and filler-free col...

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Abstract

Coated barrier fabrics are prepared with a two part, cold cure polyoxysiloxane composition and a unique two pass, two cure rate, coating process. Preferably, the coated fabrics have overlayed a second uncoated fabric on the inner surface of the coated substrate. This preferred process realizes a reusable medical barrier fabric with exceptional durability even after undergoing many laundering / autoclaving / drying cycles.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application No. 60 / 580,149, filed June 16,2004. technical field [0003] This invention relates to improvements in barrier fabrics. More particularly, the present invention relates to improvements in barrier fabrics, particularly for use in reusable or non-disposable medical products, and methods of making the barrier fabrics. These products not only show significantly enhanced virus barrier and liquid barrier properties, but also have greatly improved washing resistance and autoclave resistance. Background technique [0004] A general characteristic of barrier fabrics is that they are impermeable to liquids. More demanding barrier fabrics are also particularly suitable for use in the medical field to prevent or control: the spread of infectious microorganisms such as viruses and bacteria, the transfer of blood and other fluids in connection with, for example, surgic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B5/02B32B27/04
Inventor 斯科特·理查德·杰克逊皮埃尔·德福
Owner RHODIA LTD
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