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Coated bleach catalyst(s)

A bleaching catalyst, bleaching activator technology, applied in detergent materials, detergent compounding agents, detergent compositions, etc., can solve the problems of reduced cleaning performance, storage difficulties, etc.

Inactive Publication Date: 2018-08-31
DALLI WERKE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Storage, especially long-term storage, of metal-containing bleach catalysts in cleaning compositions (e.g. dishwashing compositions) has been found to be difficult because the cleaning performance decreases significantly after several weeks of storage

Method used

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  • Coated bleach catalyst(s)

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Experimental program
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Effect test

Embodiment

[0190] Co-particles comprising 5% by weight of MnTACN, 25% by weight of CMC and 70% by weight of TAED were coated as defined in Table 1 . After storage as shown in Table 1, the granules were added to an automatic dishwashing composition comprising builder, percarbonate, nonionic surfactant and sulfonic acid-containing copolymer, and washed with 100 g of soil residue ( Black tea) was tested and scored for cleaning performance (% clean).

[0191] Table 1 : Bleaching performance (in %) of detergent compositions comprising co-granules according to the invention

[0192]

[0193] (1) Kollicoat Protect (BASF): Copolymer of PVA and polyethylene glycol (PEG)

[0194] (2) Accusol 588 (Rohm&Haas): sulfonic acid / acrylic acid copolymer.

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Abstract

The present invention refers to a granulate comprising a core comprising or consisting of one or more bleach catalyst(s), one or more binder(s), optionally a bleach activator and further a coating comprising or consisting of a polymer or a carboxylic acid as well as a detergent composition comprising such a granulate, a method for preparing said granulate and the use of such a granulate in cleaning compositions.

Description

technical field [0001] The present invention relates to a granule comprising: a core comprising one or more bleach catalysts, one or more binders, optionally a bleach activator or consisting thereof, and further comprising a polymer or carboxylic acid Alternatively a coating consisting of a polymer or a carboxylic acid, the invention also relates to detergent compositions comprising such particles, a process for the preparation of said particles and the use of such particles in cleaning compositions. Background technique [0002] Bleach systems are often included in cleaning compositions to bleach colored stains. Such bleaching systems generally contain any compound representing or developing a bleaching agent, together with bleach activators and bleach catalysts to support and accelerate the bleaching action of the bleaching agent. [0003] When using inorganic peroxygen based bleaches, bleach activators offer the possibility to use relatively lower temperatures to achieve...

Claims

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Application Information

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IPC IPC(8): C11D3/39C11D17/00
CPCC11D3/3935C11D17/0039
Inventor K·蒂尔曼T·比伦S·米勒
Owner DALLI WERKE
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