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Organosilicon compounds comprising cyclodextrin radicals

A technology of organosilicon compounds and cyclodextrins, which can be used in transportation and packaging, fiber processing, textiles and papermaking, etc., and can solve problems such as high costs

Inactive Publication Date: 2011-05-25
WACKER CHEM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Other disadvantages of the described method are: firstly the release of hydrogen, which will cause significant problems in the manufacture on an industrial scale, and secondly, in the case of PL-B-178362, the formation of inhomogeneous copolymer-type compositions, which are determined only by statistical effects to control
On the other hand, high-cost reagents and multi-step synthesis methods are also disadvantages

Method used

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  • Organosilicon compounds comprising cyclodextrin radicals
  • Organosilicon compounds comprising cyclodextrin radicals
  • Organosilicon compounds comprising cyclodextrin radicals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0471] 100 grams of aminoalkyl functionalized, trimethylsilyl terminated, silicone oil of the type specifically identified below was placed into a glass beaker as an initial charge. Using an Ultra-Turrax (Janke & Kunnel, IKA Laboratory Technology Ultra-Turrax T 50 type, 1100 watts, 10000 rpm), the amount of cyclodextrin listed in Table 1 was dissolved in 1.2 times the water and dispersed in the initial Feed and allow the reaction mixture to react completely for 90 to 120 minutes. Depending on the viscosity of the silicone oil used, the temperature rises to about 50 to 80° C. during the process. Distillation of the residual water left behind the cyclodextrin-based silicone oil from which no flocculation or precipitation of cyclodextrin was observed over several months.

[0472] Table 1

[0473]

[0474] Based on the total weight of silicone oil used.

[0475] The cyclodextrin used in Examples 1a to 1d is

[0476]

[0477] The cyclodextrin is commercially available a...

Embodiment 2

[0481] As an initial charge, 100 grams of trimethylsilyl-terminated, silicone oil of the type specifically identified below was placed in a glass beaker. An eccentric dissolver system (Molteni, Labmax, 6000 rpm) was used in Examples 2b-e to disperse the auxiliary base corresponding to the number of acidic hydrogen groups in the silicone oil used in the initial charge over a period of 5 minutes. Then add the cyclodextrin whose average solubility is 1.2 times in water in the amount shown in Table 2, and last for 90 to 120 minutes. Distillation of the remaining residual water left behind the cyclodextrin-based silicone oil from which no flocculation or precipitation of cyclodextrin was observed over several months.

[0482] Table 2

[0483]

[0484] Based on the total weight of silicone oil used.

[0485] a) auxiliary base: triethylamine

[0486] b) 50% aqueous solution; CD added as solid

[0487] c) Auxiliary base: t Ok

[0488] The cyclodextrins used in Examples 2a-e...

Embodiment 3

[0496] Always at room temperature and under constant stirring, dissolve the amount of cyclodextrin shown in Table 3 in 1 gram of water, and add 100 grams of the emulsion consisting of the following ingredients

[0497] - 17.5% by weight of aminoethylaminopropyl functional organopolysiloxane having trimethylsilyl end groups, an average chain length of about 150, and amine values ​​shown in Table 3, and about

[0498] - 10% by weight of ethoxylated fatty acids with a chain length distribution of 12 to 18 carbon atoms, and

[0499] -72.5% by weight of water.

[0500] Afterwards, the prepared emulsions were all stored at room temperature for 7 days, and subsequently destroyed with 20% sodium chloride solution. Subsequently, the prepared silicone resin oil containing a cyclodextrin base was washed 10 times with 100 grams of 20% NaCl solution each time. Distillation of the residual water left behind the cyclodextrin-based silicone oil from which no flocculation or precipitation of...

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Abstract

Disclosed are cyclodextrin radicals-comprising organosilicon compounds containing units of formula AaRbXcHdSiO(4-a-b-c-d) / 2, in which A can be identical or different, and a radical of formula CD-R<2>-, CD, R, X, a, b, c, and d having the meaning indicated in claim 1, methods for the production thereof, and the use thereof.

Description

[0001] This application is a divisional application of the invention patent application with the application number 03819983.1 named "Organosilicon Compound Containing Cyclodextrin Group" with the filing date of August 14, 2003. technical field [0002] The present invention relates to an organosilicon compound containing a cyclodextrin group, its production method and its use, especially the use in fabric calendering, and a crosslinkable composition mainly composed of an organosilicon compound containing a cyclodextrin group. Background technique [0003] Organosilicon compounds, especially organosilanes and organosiloxanes, have been known for a long time and can also be used as fabric softeners. [0004] Cyclodextrins are cyclic oligosaccharides composed of 6, 7 or 8 α-(1-4) linked anhydroglucose units. The hydrophobic cavities of α-, β- or γ-cyclodextrins produced by enzymatic starch conversion vary in diameter and are commonly used to entrain many lipophilic substances....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/06C08L83/10C08L5/16D06M15/643C08B37/16C08G77/38C08G77/42
CPCC08G77/42C08B37/0012C08G77/38Y10T428/31663
Inventor 克里斯蒂安·奥克斯彼得·哈贝雷德尔格洛丽亚·卡卢察
Owner WACKER CHEM GMBH