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Composite non-woven fibrous webs having continuous particulate phase and methods of making and using the same

A non-woven fiber web and fiber technology, applied in non-woven fabrics, textiles, papermaking, textiles, etc., can solve the problems of increasing liquid pressure drop, reducing porosity and/or surface area, etc., and achieve high cost performance and high porosity , the effect of high fluid permeability

Inactive Publication Date: 2011-01-19
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, fines have a tendency to stretch or crush when handled, reducing the porosity and / or surface area available for absorption while increasing the pressure drop of liquids across the nonwoven

Method used

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  • Composite non-woven fibrous webs having continuous particulate phase and methods of making and using the same
  • Composite non-woven fibrous webs having continuous particulate phase and methods of making and using the same
  • Composite non-woven fibrous webs having continuous particulate phase and methods of making and using the same

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[0197] Exemplary embodiments of the present invention have been described above, and the present invention will be further illustrated below through the following examples, which should not be construed as limiting the scope of the present invention in any way. On the contrary, it should be clearly understood that various other embodiments, modified forms and their equivalents can be adopted without departing from the spirit of the present invention and / or the scope of the appended claims after those skilled in the art read the description herein. Such other embodiments, modifications, and equivalents thereof will be apparent within the given scope. Furthermore, notwithstanding that the numerical ranges and parameters setting forth the broad scope of the invention are approximations, the numerical values ​​set forth in the specific examples are reported as precisely as possible. Any numerical value, however, inherently contains certain errors necessarily resulting from the sta...

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Abstract

The disclosure relates to composite nonwoven fibrous web including an embedded phase having a population of particulates forming a substantially continuous three dimensional network, and a matrix phase comprising a population of fibers forming a three-dimensional network around the particulates. The disclosure also relates to methods of making a composite nonwoven fibrous web including forming anembedded phase having a population of particulates in a substantially continuous three-dimensional network, and forming a matrix phase comprising a population of fibers forming a three dimensional network around the particulates. Articles made from a composite nonwoven fibrous web prepared according to the methods as described above are also disclosed. In exemplary embodiments, the articles may include gas filtration articles, liquid filtration articles, sound absorption articles, surface cleaning articles, cellular growth support articles, drug delivery articles, personal hygiene articles, and wound dressing articles.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Patent Application No. 61 / 017,842, filed December 31, 2007, the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] The present invention relates to nonwoven webs having at least one continuous particulate phase and methods of making and using such webs. The present invention also relates to composite nonwoven webs useful in absorbent articles, the composite nonwoven webs comprising submicron fibers and / or microfibers. Background technique [0004] Nonwoven webs have been used to make absorbent articles that are useful, for example, as absorbent wipes for surface cleaning, gas and / or liquid absorbents for filter media, and as absorbents for sound and / or heat absorption. shielding material. In some applications where high absorbency is required, it may be advantageous to use a highly porous nonwoven web formed of fine fib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/42D04H1/54D04H1/70
CPCD04H1/4382D04H1/56D04H1/42D04H13/002D04H1/407D04H1/413D04H1/4374D04H1/559D04H1/43825D04H1/43835D04H1/43838Y10T428/249924Y10T428/249926Y10T442/30Y10T442/40Y10T442/60
Inventor 迈克尔·R·贝里甘埃里克·M·摩尔
Owner 3M INNOVATIVE PROPERTIES CO
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