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A kind of organosilicon quaternary ammonium antibacterial agent and preparation method thereof

A technology of organosilicon quaternary ammonium salt and antibacterial agent, which is applied in the fields of botanical equipment and methods, fungicides, organic chemistry, etc., can solve the problems of unclear human health effects, and achieves convenient and safe long-term use, convenient storage, and easy The effect of transport

Active Publication Date: 2019-04-23
北京探二三科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a common safety hazard of this type of product is that there are no specific literature reports on the toxicological tests and metabolic pathways of pentaerythritol, and the impact of long-term use of this type of product on human health is not very clear

Method used

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  • A kind of organosilicon quaternary ammonium antibacterial agent and preparation method thereof
  • A kind of organosilicon quaternary ammonium antibacterial agent and preparation method thereof
  • A kind of organosilicon quaternary ammonium antibacterial agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036]The chemical formula of this organic silicon quaternary ammonium antibacterial agent is: C 18 h 37 N(CH 3 ) 2 (CH 2 ) 3 SiO 3 ·C 5 h 9 o 2 , namely R n SiO 4-n ·C m h 2m+n-2 o k+n-4 in, R 1 is octadecyl, Me is methyl, R 2 It is a C3 linear alkyl group, n is 1, m is 5, and k is 5.

[0037] The organosilicon quaternary ammonium antibacterial agent is prepared by the reaction of a) and b), and the a) is a molecular formula of C 18 h 37 N(CH 3 ) 2 (CH 2 ) 3 Si(OMe) 3 Silicone quaternary ammonium salt, X is methoxy OCH 3 , the b) is xylitol C 5 h 12 o 5 , the reaction equation of said a) and b) is:

[0038]

[0039] The preparation method of this organosilicon quaternary ammonium antibacterial agent in liquid state adopts the following steps:

[0040] 1) Weigh γ-chloropropyltrimethoxysilane (2.782 kg, 14 moles) and add it to a 150-liter reactor with a condensation and reflux device. After sealing the reactor, open the heating mechanism of the rea...

Embodiment 2

[0047] The chemical formula of this organic silicon quaternary ammonium antibacterial agent is: C 18 h 37 N(CH 3 ) 2 (CH 2 ) 3 SiO 3 ·C 5 h 9 o 2 , namely R n SiO 4-n ·C m h 2m+n-2 o k+n-4 in, R 1 is octadecyl, Me is methyl, R 2 It is a C3 linear alkyl group, n is 1, m is 5, and k is 5.

[0048] The organosilicon quaternary ammonium antibacterial agent is prepared by the reaction of a) and b), and the a) is a molecular formula of C 18 h 37 N(CH 3 ) 2 (CH 2 ) 3 Si(OMe) 3 Silicone quaternary ammonium salt, X is methoxy OCH 3 , the b) is xylitol C 5 h 12 o 5 , the reaction equation of said a) and b) is:

[0049]

[0050] The preparation method of this organosilicon quaternary ammonium antibacterial agent of solid state adopts the following steps:

[0051] 1) Weigh γ-chloropropyltrimethoxysilane (2.782 kg, 14 moles) and add it to a 150-liter reactor with a condensation and reflux device, close the reactor, and open the heating mechanism of the reactor...

Embodiment 3

[0064] The chemical formula of this organic silicon quaternary ammonium antibacterial agent is: C 12 h 25 N(CH 3 ) 2 (CH 2 ) 3 SiO 3 ·C 6 h 11 o 3 , namely R n SiO 4-n ·C m h 2m+n-2 o k+n-4 in, R 1 is dodecyl, Me is methyl, R 2 It is a C3 linear alkyl group, n is 1, m is 6, and k is 6.

[0065] The organosilicon quaternary ammonium antibacterial agent is prepared by the reaction of a) and b), and the a) is a molecular formula of C 18 h 37 N(CH 3 ) 2 (CH 2 ) 3 Si(OH) 3 The organosilicon quaternary ammonium salt, X is hydroxyl OH, and the b) is sorbitol C 6 h 14 o 6 , the reaction equation of said a) and b) is:

[0066]

[0067] The preparation method of this organosilicon quaternary ammonium antibacterial agent of solid state adopts the following steps:

[0068] 1) Weigh γ-chloropropyltrimethoxysilane and add it to the reaction kettle with condensation and reflux device, close the reaction kettle, open the heating mechanism of the reaction kettle, a...

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Abstract

The invention discloses an organosilicon quaternary ammonium salt antibacterial agent and a preparing method thereof. The chemical formula of the organosilicon quaternary ammonium salt antibacterial agent is RnSiO4-n.CmH 2m+(n-2) Ok+(n-4), wherein R represents an alkyl group which can not be hydrolyzed, the molecular formula of the alkyl group is R1NMe2R2, R1 represents one of an alkyl group and an aryl group, Me represents a methyl group, R2 represents C1-C5 linear-chain alkyl groups, n is a positive integer from 1 to 3, m is a positive integer from 5 to 8, and k is a positive integer from 3 to m+1. The organosilicon quaternary ammonium salt antibacterial agent is low in inflammability and free of toxicity, has high water solubility and stability, is convenient to store and easy to transport, and has no toxic and side effects on the environment and the human body, and antibacterial mould-proof products and skin care products containing the organosilicon quaternary ammonium salt antibacterial agent can be used conveniently and safely for a long term.

Description

(1) Technical field [0001] The invention relates to an organic silicon quaternary ammonium antibacterial agent and a preparation method thereof. (2) Background technology [0002] Quaternary ammonium salts can adsorb negatively charged bacteria and have a good bactericidal effect. However, common quaternary ammonium salts have low chemical activity, basically exist in a free state when applied, and are relatively toxic and irritating. The study found that the performance of organosilicon quaternary ammonium salt prepared by introducing siloxane into the structure of quaternary ammonium salt has changed dramatically, not only has excellent antibacterial and antibacterial properties, but also has no irritation and carcinogenic effects on human skin. The molecular formula of organosilicon quaternary ammonium salt is R n SiX 4-n (n is a positive integer from 0 to 3; R is a non-hydrolyzable alkyl group; X is a hydrolyzable group, such as hydroxyl, alkoxy), wherein, the X group...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F7/18A01N55/10A01P3/00A01P1/00
CPCA01N55/00C07F7/1804
Inventor 于美宁袁博
Owner 北京探二三科技有限公司
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