C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 3/10 (2006.01) C11D 1/83 (2006.01) C11D 3/20 (2006.01) C11D 3/386 (2006.01)
Patent
CA 2140426
A stearate-matrix, pre-spotter composition in solid stick form to be applied by direct contact to stained areas of fabric, thereby transferring the composition to the stained areas of the fabric. The composition includes an alkyl aromatic sulfonic acid and/or sulfonate, at least one nonionic surfactant, and an enzyme uniformly dispersed throughout a semi-hard stearate matrix. By the addition of sodium bicarbonate, the composition optimizes the pH to promote enzyme action, while simultaneously achieving a satisfactory drop point for shipping and warehousing. At pH levels from 8.2 to 9.0, acceptable hardness and transferability are still achieved, which was previously thought not to be possible without the addition of a critical amount of certain salts. The further addition of sodium bicarbonate in an encapsulated form directs the sodium bicarbonate-driven soil and stain removing capabilities of the composition to the point of application on the fabric.
Composition de pré-retouche à base de stéarate, sous forme de bâton, pour application par contact direct sur des zones tachées d'un tissu, dans lesquelles la composition se trouve transférée. Celle-ci est composée d'un acide sulfonique et (ou) sulfonate aromatiques alkyliques, d'au moins un surfactif non ionique, et d'une enzyme uniformément dispersée dans une matrice de stéarate semi-dure. Par addition de bicarbonate de sodium, la composition optimise le pH, ce qui active l'enzyme, tout en donnant simultanément un point de goutte satisfaisant pour l'expédition et l'entreposage. € un pH de 8,2 à 9,0, on peut encore obtenir une dureté et une transférabilité acceptables, ce qu'on ne pensait pas possible auparavant sans l'addition d'une quantité critique de certains sels. L'addition supplémentaire de bicarbonate de sodium sous forme encapsulée achemine le pouvoir détachant de la composition via le bicarbonate jusqu'au point d'application sur le tissu.
Fatigante Michael D.
Mandy John C.
Fluid Packaging Company Inc.
Mccarthy Tetrault Llp
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