Abstract: The present invention is a defoaming agent comprising a fatty acid amide (A), a base oil (B) that is liquid at 25° C., an oil thickening agent (C), and a surfactant (D), wherein the content of the fatty acid amide (A) is 1 to 10% by weight, the content of the base oil (B) that is liquid at 25° C. is 71 to 97.9% by weight, the content of the oil thickening agent (C) is 0.1 to 10% by weight, and the content of the surfactant (D) is 1 to 9% by weight based on the weight of the fatty acid amide (A), the base oil (B) that is liquid at 25° C., the oil thickening agent (C), and the surfactant (D), and the viscosity (25° C.) at a shear rate of 1000 s?1 is 0.1 to 1.0 Pa·s.

Abstract: The object of the present invention is to provide a defoaming agent that is superior in defoaming properties (foam-breaking, foam-inhibiting effect, defoaming durability). The present invention is a defoaming agent comprising a fatty acid amide (A), a base oil (B) that is liquid at 25° C., an oil thickening agent (C), and a surfactant (D), wherein the content of the fatty acid amide (A) is 1 to 10% by weight, the content of the base oil (B) that is liquid at 25° C. is 71 to 97.9% by weight, the content of the oil thickening agent (C) is 0.1 to 10% by weight, and the content of the surfactant (D) is 1 to 9% by weight based on the weight of the fatty acid amide (A), the base oil (B) that is liquid at 25° C., the oil thickening agent (C), and the surfactant (D), and the viscosity (25° C.) at a shear rate of 1000 s?1 is 0.1 to 1.0 Pa·s.

Abstract: The invention relates to a novel class of gelling agents, to a process of preparing said agents, to the use of said agents to prepare gels, and to the gels thus obtained. A gelling agent or thickener according to the invention comprises a core which is functionalized with three amino acid derived groups by means of an amide or urea linkage. It may be used to gelate or thicken numerous solvents.

Abstract: Defoamer compositions of high effectiveness containing at least one siloxane-based antifoam and polysiloxane copolymers obtained by coupling a polysiloxane bearing active-hydrogen-containing hydrophilic polymer moieties by means of a di- or polyisocyanate.

Abstract: A quaternary surfactant comprising a cyclic diamine group, compositions comprising the quaternized amido cyclic amine surfactant, a gelled aqueous composition comprising the quaternized amido cyclic amine surfactant, use of the gelled aqueous well treatment applications and methods of preparation and intermediates used to prepare the quaternized amido cyclic amine surfactant.

Abstract: Provisions of a foam inhibitor which effectively inhibits foaming (bubbling) caused at the time of dissolving dry compositions and of a water-soluble dry composition which comprises the foam inhibitor. The form inhibitor is suitable for inhibiting foaming caused at the time of dissolving dry compositions comprising saccharide which contain a hydrophobic amino acid as essential ingredient; and the water-soluble dry composition contains pharmacologically active proteinaceous substance, saccharide and hydrophobic amino acid having the hydropathy index of about not less than 2, wherein the concentration of the hydrophobic amino acid is in the range of 0.05 wt. % to less than 40 wt. % based on the total amount of the dry composition.

Abstract: A method for restricting air entrapment in white water of a paper making process is described, which comprises adding to said white water a polysiloxane having an Si--C bonded substituent with at least one ether or alcohol oxygen. Preferably certain siloxane oxyalkylene copolymers or certain siloxane oxyalcohols are used.