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Stretched-thinned breathable films resistant to blood and virus penetration

A breathable and thin-film technology, applied in the field of polymer films, can solve problems such as low strength

Inactive Publication Date: 2003-08-13
KIMBERLY-CLARK WORLDWIDE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The film itself provides good vapor transmission and some liquid barrier, but usually has low strength

Method used

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  • Stretched-thinned breathable films resistant to blood and virus penetration
  • Stretched-thinned breathable films resistant to blood and virus penetration
  • Stretched-thinned breathable films resistant to blood and virus penetration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0072] Example 1 Sample #P5058-55K

[0073]

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Abstract

A stretch-thinned polymeric film is formed from a mixture of a polymer matrix including a low crystallinity propylene polymer having not more than about 30% crystallinity, with a particulate filler. The stretch-thinned film is breathable to water vapor yet resistant to penetration by liquids and viruses. The film can be laminated to a nonwoven web, and is useful in a wide variety of medical apparel and related products.

Description

field of invention [0001] The present invention relates to stretch thinned polymer films that are water vapor permeable but blood and virus impermeable. The invention also relates to laminates of the film with one or more layers of nonwoven webs, which can be used in surgical gowns, caps, aprons, and other medical applications. Background of the invention [0002] Polymer films have traditionally been used to provide barrier properties for limited use or disposable products. The terms "limited use" and "disposable" refer to a product or component that is used only once or a few times and then discarded. Examples of such products include, but are not limited to, surgical and healthcare related products such as hospital drapes and gowns, disposable workwear such as coveralls and lab coveralls, and personal care absorbent articles such as diapers, training pants , incontinence products, sanitary napkins, bandages, rags, etc. In the field of protective clothing, films are use...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/18C08L23/12C08L23/14
CPCC08L2203/02C08J2323/14C08L23/14C08L23/12C08L23/142C08J5/18C08L2205/02C08L2666/04
Inventor P·M·科拜里弗克K·G·赫茨勒
Owner KIMBERLY-CLARK WORLDWIDE INC