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A container, bleaching catalyst technology, applied in chemical instruments and methods, organic/inorganic compound compositions, detergent compositions, etc., can solve problems such as tearing, sticking, adverse discoloration risks, etc. The effect of reducing cost and maintaining bleaching performance

Inactive Publication Date: 2013-06-12
RECKITT BENCKISER VANISH BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] A disadvantage of all known bleach catalysts is that they come into intimate contact with the surfaces of the items being treated, so that a part of the catalyst usually sticks to said surfaces or even penetrates these surfaces
This causes an unfavorable risk of discoloration and in rare cases even holes / tears due to fiber damage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Example 1: Fabrication of Membrane

[0072] Key equipment used:

[0073] · Single screw extruder Brabender PL 2000PLE 650 in connection with Brabender Plasti-Corder.

[0074] ·Brabender Bending Machine T 300A Electronic-Roller Hot Press

[0075] raw materials used

[0076]

[0077] Phase 1: Preparation of raw materials

[0078] Manganese acetate tetrahydrate from Kemira was ground to a fine powder using a laboratory grinder. After sieving, a particle size measurement of 50-125 μm was selected for membrane manufacture.

[0079] Manganese sulphate monohydrate from Fluka was also sieved and a particle size of 50-125 μm was selected for membrane manufacture.

[0080] The PMMAVM 100 was heated in an oven at 80°C for 2 hours to remove traces of moisture.

[0081] Use PP polypropylene as supplied without drying.

[0082] Stage 2: Preparation of the premix

[0083]Several 500 g premixes were prepared. The ratio / amount of raw materials was chosen to have the same mo...

Embodiment 2

[0094] Example 2: Chemical Characterization of the Film Made

[0095] Chemical analyzes were performed on Membrane 4, Membrane 6, and Membrane 8 to assess the level of manganese present in the solid membranes. The results of the analysis confirmed that the theoretical / calculated amount of manganese added to the premix by weight was found in the final solid prototype.

[0096] film

Embodiment 3

[0097] Example 3: Research on Oxidation Catalysis

[0098] Prepare the following reagents and solutions in deionized water:

[0099]

[0100] Solutions containing sodium percarbonate and TAED were compared to solutions containing PCB, TAED and a homogeneous catalyst (manganese acetate or manganese sulfate), and compared to solutions containing PCB+TAED+solid membrane format (membrane 4 or membrane 6 or membrane 8). The solutions of the corresponding catalysts were compared.

[0101] Protocol used: Saffron beaker test

[0102] Saffron solution (fresh, protected from light)

[0103] Deionized water

[0104] Temperature: 20°C

[0105] Study responses over 30 minutes

[0106] The UV / Vis absorbance at 430 nm was used to monitor the rate of oxidation of the substrate by measuring the decolorization of the saffron solution.

[0107] After 30 minutes the remaining value of the absorbance was measured experimentally in the laboratory, the results of which are summarized in t...

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Abstract

A container comprises a detergent formulation. The container includes a first enclosing wall. The first enclosing wall is permeable to water. The container includes a second enclosing wall. The second enclosing wall comprises a bleaching catalyst admixture and a support material.

Description

technical field [0001] The present invention relates to a container. Background technique [0002] Inorganic peroxygen compounds, particularly hydrogen peroxide and solid peroxygen compounds such as sodium perborate and sodium carbonate perhydrate, which dissolve in water to release hydrogen peroxide, have long been used as oxidants for disinfection and bleaching purpose. Oxidation of these species in dilute solutions is critically temperature dependent; for example, in the presence of H 2 o 2 or perborate alkaline bleaches, sufficiently rapid bleaching of soiled fabrics can only be obtained at temperatures above about 80°C. At lower temperatures, the oxidation of inorganic peroxygen compounds can be enhanced by adding so-called bleach activators for which various proposals have been published in the literature, mainly from the class of N-acyl compounds or O- Acyl compounds, examples being polyacylated alkylenediamines (especially tetraacetylethylenediamine), acylated gl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11D17/04C11D3/39
CPCC11D3/3932C11D17/046C11D17/041
Inventor 多拉·扎穆尔
Owner RECKITT BENCKISER VANISH BV