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Novel Applications of EurecoTM RP 103

IP.com Disclosure Number: IPCOM000246042D
Publication Date: 2016-Apr-28

Publishing Venue

The IP.com Prior Art Database

Related People

Garaffa, Roberto: AUTHOR [+6]

Abstract

EurecoTM RP 103 is a new free flowing, boron free particle containing 6-phthalimidoperoxyhexanoic acid (PAP). The particle is stable on its own and when formulated with various other media under ambient and elevated temperature and humidity conditions. It is a versatile material that can be used in a wide range of different product formulations and applications.

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Abstract

EurecoTM RP 103 is a new free flowing, boron free particle containing 6-phthalimidoperoxyhexanoic acid (PAP). The particle is stable on its own and when formulated with various other media under ambient and elevated temperature and humidity conditions. It is a versatile material that can be used in a wide range of different product formulations and applications.

Introduction

EurecoTM RP 103 is a proprietary (WO2015/118357A2) bleaching agent containing particle developed by Revolymer and exclusively licensed to Solvay for cleaning, disinfecting and deodorizing products. Bleaching agents are used in a plethora of cleaning applications in order to sanitise and remove stains from materials.  Typically, bleaches are oxidising agents that act by the oxidation of conjugated or labile portions of a particular staining molecule.  Bleaches are included in many cleaning formulations and are typically used in conjunction with other cleaning agents such as surfactants.  A major use of bleaches are in laundry applications where bleaching can be required to give efficient stain removal, and in automatic dish washing (ADW) applications.  A number of these bleaches are solid in nature, for example, metal salts of perborate or percarbonate, such as sodium perborate or sodium percarbonate (SPC).  These materials are widely used in solid, powder and tablet formulations.  Such bleach systems cannot be used in liquid formulations as they will react with other components, such as enzymes or fragrances, and will render these ineffective, thereby reducing the performance of the overall formulation. There is growing demand from manufacturers and end users to use stable, efficacious bleaching agents and bleaching agent accelerators or activators in challenging formulation environments such as powder, tablet, unit dose or liquid formulations.  A key requirement in these cases is the ability to protect or stabilise the bleaching material from other mutually reactive components in the formulation.  In the case of laundry or automatic dish wash (ADW) detergents, the formulations are typically highly alkaline and typically contain oxidatively labile components such as surfactants, enzymes or perfumes, all of which can be decomposed or denatured through the action of bleaches.  Bleaches can also be susceptible to high pH of formulations, especially in liquid formulations, and particularly in the case of pre-formed peracids such as 6-phthalimidoperoxyhexanoic acid (PAP).  PAP has been shown to possess particularly high bleaching efficacy in-use and can bleach stains, including hydrophobic stains, at lower temperatures than the traditionally used combination of SPC and tetraacetoxyethylene diamine (TAED). However, PAP is sensitive to high pH, particularly in the presence of water or high humidity, and can oxidise sensitive ingredients in a detergent formulation, such as surfactants, enzymes or fragrances.  Pre-formed percarboxylic acids such as PAP are adva...