Abstract: The present invention relates to wetting agent formulations comprising wetting agents combined with co-additives that ensure the wetting agent formulation is a flowable liquid at room temperature. Wetting agents suitable for use in this invention are multi-branched block copolymers. The copolymers include a polyfunctional base which is an oxygen-containing compound having at least three ethylene oxide/propylene oxide block copolymer branches attached thereto. The co-additives include a combination of a solvent with an intermediate-to-high polar parameter and a low hydrogen bonding parameter and a solvent with intermediate-to-high hydrogen bonding parameter, as defined by Hansen's solubility parameters.

Abstract: This invention relates to end-modified branched block copolymers for soil treatment applications. The end-modified branched block copolymers contain an alkoxylated block copolymer modified with a hydrophobic end group such as an alkysuccinic acid ester, a fatty acid ester, or an ether. Soils treated with these copolymers exhibit improved soil water penetration properties with enhanced atmospheric moisture absorption and provide overall healthier turf and/or plants contained therein.

Abstract: This invention relates to multi-branched block copolymers suitable for use as wetting agents. The multi-branched block copolymers are comprised of an oxygen-containing polyfunctional base compound having at least 3 EO/PO block copolymer branches attached thereto. The improvement lies in: (a) the percent hydrophobic component, as defined as the weight % PO in the molecule, being present in an amount from 40% to 60% by weight and in (b) the molecular weight per branch (or arm), as defined as the total number average molecular weight of the polymer divided by the functionality of the base being greater than 1700 gmol?1arm?1. It was surprisingly discovered that this combination of intermediate hydrophobicity and high molecular weight give superior drought tolerance for plants treated therewith.