TH35923A3 - Stable water-repellent mixture when stored. - Google Patents

Abstract

DC60 (18/05/42) Stable mixtures were disclosed upon storage. Which is optimized for providing water-repellent properties to Building materials formed by masonry The mixtures contain aqueous emulsions with an aqueous phase. It is a continuous medium and discrete organosilicon cycle. The emulsion is formulated from the composition containing (A) insoluble alkoxysilane with the mean formula Rn-Si-R '(4-n), where n is a number from 1 to 2, R is the C5-C20 monovalent hydrocarbon radical, and R 'is the C1 to C4 alkoxies (B) polysiloxane group with at least two hydrogen atoms that are sintered. Silicon per molecule At least five siloxies per molecule and kinematic viscosity between 0.5 x 10 to the power of -6 and 1000 x 10 to the power of -6 m2 / s at 25 ° C (C) emulsifier. And (D) water, the discrete organosilicon phase consists of elements (A) and (B), and the continuous water-neutral cycle consisting of element water (A) (B) exists. In the organosilicon cycle in the weight-by-weight ratio of (A) :( B), it is such that the emulsion has Both the physical and chemical stability were obtained after being stored at room temperature for six months or at 50 ° C for six weeks. The stable mixtures were disclosed upon storage. Which is optimized for providing water-repellent properties to Building materials formed by masonry The mixtures contain aqueous emulsions with an aqueous phase. It is a continuous medium and discrete arganosilicon cycle. The emulsion is formulated from the composition containing (A) insoluble alkoxysilane with the average general formula. Ra-Si-R '(4-n), where n is a number from 1 to 2, R is the C5-C20 monovalent hydrocarbon radical, and R' is groups C1 through C4 alkoxy (B) polysil. Hydrogen functional group containing at least two hydrogen atoms connected by silicon per molecule. At least five siloxies per molecule and a dynastic viscosity between 0.5 x 10-6 and 1000 x 10-6 m 2 / sec at 25 c (C) emulsifier and (D). Such discrete organosilicon water cycle consists of elements (A) and (B), and the continuous water-neutral phase consists of water. The elements (A): (B) are present in The organosilicon phase in the weight ratio of (A); (B) is such that the emulsion has Both the visual and chemical stability after being stored at room temperature for six months or at 50 ํ for six weeks:

Claims (5)

1. Storage stable mixtures consisting of a water-based emulsion designated Gives a continuous aqueous-medium cycle and a non-sequential organosilicon cycle, the emulsion formulated from the constituents containing (A) alkoxysilane. Insoluble with the general formula average Ra-Si-R \ '(4-n), where n is a number from 1 to 2, R is the C5-C20 monovalent hydrocarbon radical, and R \' is groups C1 to C4 alkoxy (B) po. Lysiloxane, where the hydrogen function group contains at least two hydrogen atoms, is Silicon-to-molecular bond At least five siloxies per unit Molecular and kinematic viscosity between approximately 0.5 x 10-6 and 1,000 x 10-6 m 2 / sec at 25 ํ (C) emulsifier and (D) water. Orca phase. Such discrete nosilicon consists of elements (A) and (B), and the aqueous continuous neutral cycle consists of such water. The elements (A) and (B) are present in The organosilicon cycle is said to be By weight of (A) (B), such emulsion is both physically and chemically stable after Kept at room temperature for six months Or for six weeks at 50 ํ, and the organosilicon cycle is contained in the aqueous emulsion from approximately 10 to approximately 75% by weight. According to claim 1, that element (B) is the ratio by weight. Of composition (A) (B) from 10:90 to 90:10 3. Mixture according to claim 1, whose element (B) is dimethyl / methyl-hydrogen linea siloxane copolymer. Which ends with trimethyl siloxies With three methyl-hydrogen siloxies And five groups of dimethyl siloxies And dynastic viscosity 10x10-6 m 2 / s 4. Mixture according to claim 3, whose composition weight ratio (A) :( B) is from 10:90 to 90:10 5. Mixture According to claim 1, that element (B) is dimethyl / methyl Hydrogen syloxencopolymer with trimethyl siloxide with three methyl-hydrogen siloxide groups. And five groups of dimethyl siloxies And dimatic viscosity 10x10-6 / sec 6. Mixture according to claim 5, which the ratio by weight of the composition (A): (B) is approximately 1: 3 7. Mixture according to claim 1, which emulsifies Such emulsifier (C) has a value of HLB 2-20 8. Mixture according to claim 7, the emulsifier (C) has a value of HLB 4- 17 9. Mixture according to Clause 7. Holds 1 right of which the aforementioned emulsifier is Polyoxi ethylene lauryl ether 1 0. Mixture according to claim 1 contains sufficient amounts of acid to provide a pH 4-5 1 mixture. 1. Mixture according to claim 1, in which the aforementioned organosilicon phase is contained in the emulsion. With water as this medium in quantities ranging from approximately 40 to approximately 60 percent by weight 1 2. Building materials consist of; Brick substrate, such a brick substrate has at least one surface; At least one of the surfaces was coated with a water repellant coating compound, the water repellent coating compound, was formed from a water-based emulsion, which The water-mediated cycle is a continuous medium. And discrete organosilicon cycle; The emulsion has been removed from the formula from the constituents; (A) Insoluble alkoxylane with average general formula Ra-Si-R \ '(4-n) where n is a number from 1 to 2, R is the C5-C20 monovalent hydrocarbon radical, and R \' is a C1-C4 alkoxy (B) poly group. A siloxane with a hydrogen function group that has at least two hydrogen. Atoms that are welded with Silicon per molecule, at least five xyloxys per molecule And kinematic viscosity between approximately 0.5 x 10-6 and 1,000 x10-6 m 2 / sec at 25 ° C (C) emulsifier; And (D) water. The aforementioned discrete organosilicon cycle is composed of elements (A) and (B), and the aqueous continous phase consists of such water; Such elements (A) and (B) exist in the aforementioned organosilicon cycle in the weight-by-weight ratio of (A) :( B). And stability in the picture And chemistry when stored Left at room temperature for six months Or six weeks at 50 ํ; And the organosilicon cycle is present in the aqueous emulsion at amounts from approximately 10 to approximately 75% by weight 1. 3. Methods for producing stabilized mixtures when stored Which contains a watery emulsion Is an intermediate, which defines a continuous aqueous intermediate phase and a discrete organosilicon cycle, which consists of a procedure of (I) mixing elements consisting of (A) alkoxies. Insoluble silane with the average general formula Ra-Si-R \ '\' (4-n), where n is a number from 1 to 2, R is the C5-C20 radical, monovalent hydrocarbon, and R \ '. Groups C1 through C4 alkoxies and (B) polysiloxane with hydrogen functional groups with at least two hydrogen atoms. At least five silicon-per molecules, siloxies per molecule, and dynamism. Between approximately 0.5 x 10-6 and 1,000 x 10-6 m 2 / sec at 25 ํ and (II) the inclusion of the mixtures obtained in the (I) step with (C) emulsifiers and (D) water and (III) compound emulsifier obtained in the (II) phase to produce such emulsion. At the aforementioned discrete organosilicon cycle consists of elements (A) and (B), and the aqueous-neutral phase consists of (D) and such water. Elements (A) and ( B) It exists in the aforementioned organosilicon cycle at a rate Fraction by weight of (A): (B) is such that the emulsion is physically stable. And chemistry after collection is For six months at room temperature or six weeks at 50 ํ and the said organosilicon cycle is present in such aqueous emulsion in quantities. From about 10 to about 75 percent by weight 1 4. The brick substrate method with water repellent coating, such brick substrate is At least one surface, the above method consists of at least one surface coating process. Aqueous emulsion, which defines the continuous aqueous phase and the organo phase. Discrete silicones; The emulsion is formulated from the composition; (A) Insoluble alkoxylane with average general formula Ra-Si-R \ '(4-n), where n is a number from 1 to 2, R is the C5-C20 monovalent hydrocarbon radical, and R \' is groups C1 to C4 alkoxy (B) Po. Lysiloxane is a functional hydrogen group containing at least two hydrogen atoms. At least five silicones per molecule And kinematic viscosity Between approx. 0.5 x 10-6 and 1000 x 10-6 m 2 / sec at 25 ํ (C) emulsifier; And (D) water. The aforementioned discrete organosilicon cycle consists of elements (A) and (B), and the aforementioned continuous water-mediated water cycle contains such water; The elements (A) and (B) are present in the aforementioned organosilicon cycle at a rate The weight of (A) :( B) is, for example, that the emission is physically and chemically stable after being stored at Room temperature for six months Or for six weeks at 50 ํ; And the organo-silicon cycle They are present in the aqueous emulsion in amounts from approximately 10 to approximately 75 percent by weight 1. 5. Method for providing construction brick mixtures with water repellent properties, the method consists of a process of combining the aforementioned masonry mixtures with a water-based emulsion which Assigned to a continuous water-mediated cycle And discrete organosilicon cycle; The emulsion was formulated from the composition containing (A) insoluble alkoxysilane having the average general formula. Ra-Si-R \ '(4-n), where n is a number from 1 to 2, R is the C5-C20 monovalence hydroocarbon radical, and R \' \ 'is groups C1 to C4 alkoxy ( B) A polysiloxane, a functional hydrogen group, contains at least two hydrogen atoms at Are bonded with silicon per molecule, at least five siloxies per molecule and Dinematic viscosity between approx. 0.5 x 10-6 and 1,000 x 10-6 m 2 / sec at 25 ํ (C) emulsifier; And (D) water. The aforementioned discrete organosilicon cycle consists of elements (A) and (B), and the aforementioned continuous water-mediated water cycle contains such water; The elements (A) and (B) are present in the aforementioned organosilicon cycle in the weight ratio of (A) :( B), so that such elements are physically stable. And chemotherapy after being kept at room temperature for six months or for six weeks at 50 ํ; And the organosilicon phase is present in the aqueous emulsion at amounts from approximately 10 to approximately 75 percent by weight.