Multi-branched regenerating wetting agents for treating...

C - Chemistry – Metallurgy – 09 – K

Patent

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C09K 17/14 (2006.01) A01B 79/00 (2006.01)

Patent

CA 2520873

Certain novel formulations of turf additives that act in such a manner as to permit proper amounts of moisture to contact root systems in order to reduce dry spots within highly managed turf areas and/or lawns. The inventive formulation comprising multi-branched surfactant compounds with both hydrophobic and hydrophilic constituents within each branch attached to an oxygen-containing polyfunctional base compound permits effective moisture penetration through such localized dry spots for sustained grass growth therein. Importantly, such multi-branched wetting agents provide sustained moisture penetration over a sustained period of time since the individual branches of such compounds may become dissociated from its base polyfunctional compound. Since such branches include both hydrophobic and hydrophilic constituents themselves, and thus act as wetting agents, even after degradation of the initial surfactant compound, long-term wetting and moisture penetration, at least, are permitted. Methods of treating sandy soils with such compounds and formulations thereof are also contemplated within this invention.

L'invention concerne certaines nouvelles formulations d'additifs de pelouse agissant de manière à permettre à des quantités correctes de moisissure d'être en contact avec des systèmes racinaires, de sorte à réduire des emplacements secs, à l'intérieur de zones de gazon et/ou de pelouses fortement utilisés. L'invention concerne une formulation comprenant des composés surfactants à ramifications multiples présentant des constituants hydrophobes et hydrophiles à l'intérieur de chaque ramification, fixés sur un composé de base polyfonctionnel contenant de l'oxygène, et permettant une pénétration d'humidité efficace, par de tels emplacements secs localisés, afin d'obtenir une croissance herbeuse continue dans ces emplacements. Une caractéristique importante de l'invention est que les agents mouillants à ramifications multiples sont tels qu'ils permettent une pénétration d'humidité continue, pendant une période prolongée, puisque les ramifications individuelles de ces composés peuvent se dissocier de leur composé polyfonctionnel de base. Puisque les ramifications comprennent à la fois des constituants hydrophobes et hydrophiles, ils agissent ainsi en tant qu'agents mouillants, même après la dégradation du composé surfactant initial, et permettent au moins une pénétration de l'humidité et un mouillage à long terme. L'invention concerne des méthodes de traitement de sols sableux au moyen de tels composés et de telles formulations.

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