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Antimicrobial hydrophilic polyurethane foam sponges

A technology of hydrophilic polyurethane and foam sponge, applied in biocides, animal repellents, plant growth regulators, etc.

Active Publication Date: 2019-06-21
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this humid environment can lead to undesirable bacterial, fungal and / or mold growth on the sponge and / or sponge packaging

Method used

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  • Antimicrobial hydrophilic polyurethane foam sponges
  • Antimicrobial hydrophilic polyurethane foam sponges
  • Antimicrobial hydrophilic polyurethane foam sponges

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1 and embodiment 2 and comparative examples CE1-CE5

[0036] Prepare treatment solution :

[0037] Most treatment solutions were prepared as follows. A laboratory glass beaker was placed on the balance, and the required amount of deionized water at 25°C was added to the beaker. The ingredients were then slowly added one after the other to the deionized water in the beaker. The pH levels of the solutions as prepared were determined with a pH meter (Orion 3-Star Benchtop pH Meter, Thermo Fisher Scientific Inc., Minneapolis, MN) and reported in Table 2 . The prepared treatment solution was kept on the laboratory bench at 25°C for 24 hours before treating the foam samples with the prepared treatment solution. The composition of each treatment solution was calculated and reported in Table 2.

[0038] The remaining treatment solutions were prepared as follows: In a first step, a laboratory glass beaker was placed on a laboratory bench and the required amou...

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PUM

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Abstract

The inventors of the present disclosure recognized that, surprisingly, the antimicrobial treatments used on cellulosic sponges do not work in hydrophilic polyurethane sponges. As such, the inventors of the present disclosure discovered a need for an antimicrobial treatment for use on hydrophilic polyurethane foam sponges. The present inventors invented one antimicrobial composition for use on hydrophilic polyurethane foam sponges including an acetate salt solution humectant. The present inventors invented another antimicrobial composition for use on hydrophilic polyurethane foam sponges including a non-halogen humectant comprising a salt solution having a pH between about 3 and 10 and a water activity of less than 0.9 at 25 DEG C.

Description

technical field [0001] The present disclosure generally relates to hydrophilic polyurethane sponges and methods of making the same. For example, sponges are used in household and industrial cleaning applications. Background technique [0002] Sponges are common cleaning products. A sponge is a lightweight, connected structure with absorbent properties. Sponge is widely used in many cleaning applications. There are many types of sponges. The most commonly used sponge is the cellulose sponge. In addition to the ubiquitous cellulose sponges, there are also polyurethane or polyurea sponges. For example, US Patent 4,638,017 describes exemplary hydrophilic polyurethane / polyurea sponges. Additionally, PCT Patent Publication WO 2016 / 044512 describes a hydrophilic polyurethane foam prepared using a polyol mixture of unvulcanized polyols and vulcanized polyols. Additionally, PCT Patent Publication WO 2016 / 044073 describes hydrophilic polyurethane sponges comprising particulate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47L13/17A01N47/00
CPCA01N47/00A47L13/17A01N25/10A01N25/16A01N43/78A01N55/00
Inventor 米汉·T·张易卜拉欣·S·居内什伊伦·伯吕克巴舍托尼·R·卡罗泽拉马库斯·A·威基
Owner 3M INNOVATIVE PROPERTIES CO