Preparation containing organosilicium compound and its use

A technology of organosilicon compounds and mixtures, used in anti-corrosion coatings, transportation and packaging, thin material processing, etc.

Active Publication Date: 2014-05-07
EVONIK OPERATIONS GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] This complex task can surprisingly be solved by protecting the substrate against corrosion with the following substances:

Method used

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  • Preparation containing organosilicium compound and its use
  • Preparation containing organosilicium compound and its use
  • Preparation containing organosilicium compound and its use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0148] Preparation of Powder 1

[0149] Within 15 minutes with a propeller stirrer and under the condition of 1000Upm in 329.2g saponification degree is 88mol% and 4% solution 100g emulsified in an aqueous solution of 24% by weight polyvinyl alcohol with a viscosity of 4mPas It is then diluted with water to a solids content of 25% by weight. The mixture was sprayed with compressed air at an inlet temperature of 120° C. on a laboratory spray tower with a two-material nozzle and dried. As antisticking agents, 0.6% by weight of calcined silicic acid and 9.4% by weight of commercially available carbonates, both relative to the shaped powder, were added. A free-flowing, well-redispersible white powder in water was obtained in good yields, which itself did not feel sticky when passed between the fingers and thus contained the acrylic acid used in very good encapsulated form. base alkoxysiloxane mixture.

Embodiment 2

[0151] Preparation of Powder 2

[0152] Example 1 was repeated without diluting the resulting mixture with water. The solids content was 37.9% by weight and the Brookfield viscosity measured with a Spindel 3 at 20 rpm and 25° C. was 1590 mPas. Spray drying was performed using a spray pan at an inlet temperature of 150°C. A free-flowing, well-wetting and well-redispersible white powder is obtained in good yields, which disintegrates into primary granules within a short time when agitated with water.

Embodiment 3

[0154] Preparation of Powder 3

[0155] Mix 329.2g degree of saponification similar to embodiment 2 and be 88mol% and 4% solution Aqueous solution of 24% by weight polyvinyl alcohol with a viscosity of 4mPas and 200.0g of 50% by weight of emulsifier-stabilized Emulsion in water, diluted, dried and blended with anti-sticking agent. A free-flowing, well-wetting and well-redispersible white powder in water was obtained in good yields, which itself did not feel sticky when passed between the fingers and thus encapsulated well The form contains the silicone used.

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Abstract

The mixture is based on water soluble organic polymer and an organosilicium compound or a water containing composition in addition to the water soluble organic polymer and the organosilicium compound. Additives and a mineral binding agent are also provided to the mixture. The organosilicium compound is an oligomeric alkyl-alkoxy siloxane of general formula (I). The alkyl-alkoxy siloxane having general formula (I). (R)Si(OR") xO y. R' : 1-8C linear, branched or cyclic alkyl group, preferably methyl, ethyl, propyl, hexyl, octyl or hexadecyl group; R" : H or 1-4C linear or branched alkyl group, preferably methyl, ethyl or propyl; x : 1-2; and y : 0.5-1.0. Provided that: (A) (2y + x)=3. An independent claim is also included for a method for producing mixture, which involves mixing an organic polymer and organosilicium compound.

Description

technical field [0001] The invention relates to the use based on a mixture of at least one water-soluble organic polymer and an organosilicon compound for protecting substrates against corrosion, based on a mixture of at least one water-soluble organic polymer and an organosilicon compound and the preparation The mixture method. Background technique [0002] In chemistry, corrosion refers to the chemical reaction of a material with its surrounding substances in which a measurable change is produced in the material. Typically, the material is metal. But the term can also be applied to other materials such as glass, cement, mortar and other inorganic building materials. There are also various types of corrosion, such as oxygen corrosion which forms an oxide layer such as rust, hydrogen corrosion, also known as acid corrosion, hydrogen embrittlement, glass corrosion - the process in which the surface of drinking glasses and other glass products is damaged. Structural changes...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L29/04C08L39/06C08L33/06C08L63/00C08L35/00C08L3/02C08L1/26C08L89/00C08K5/54C09D5/08C04B41/46C04B41/62C04B35/63C04B24/24C08K3/26
CPCC04B2111/00284C08K3/26C08K3/36C04B2111/00103C04B28/02C04B41/63C08L83/04C09D5/086C04B2111/00482C04B2111/00732C04B24/42C08K5/5419C04B40/0042C04B41/4869C08L29/04C04B2111/26Y10T428/31663C04B32/02C04B41/4922C04B41/501C04B41/502C04B41/5089C04B41/4961C04B24/2623C04B24/383C08L2666/14C08L2666/04
Inventor S·吉斯勒-布兰克B·斯坦德克U·克勒
Owner EVONIK OPERATIONS GMBH
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