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Propanoic acid polyhexamethylene guanide and preparation method thereof

A technology of polyhexamethyleneguanidine propionate and polyhexamethyleneguanidine, which can be used in botany equipment and methods, chemicals for biological control, animal repellants, etc., and can solve the problem of weak mold killing ability , High hygroscopicity, unable to be made into powdered solids, restrictions and other problems, to achieve excellent bactericidal effect

Inactive Publication Date: 2007-09-19
SHANGHAI HIPOLY IND
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Since polyhexamethyleneguanidine hydrochloride is corrosive to metals (carbon steel and copper, etc.), the disinfection on metal equipment is limited to a certain extent. At the same time, the ability of polyhexamethyleneguanidine hydrochloride to kill mold Weak, high hygroscopicity and cannot be made into powdery solid

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] a, synthesis of aminoguanidine propionate

[0021] Add 300 kg of dicyandiamide and 325 kg of ammonium propionate into the rotary mixer and mix for 30 minutes; start heating, stop heating when the temperature rises to 170-180°C, keep the temperature in this range for about 1 hour, and synthesize 440 kg of aminoguanidine propionate;

[0022] b. Polymerization

[0023] Put 400 kilograms of aminoguanidine propionate and 410 kilograms of triethylene propylene diamine into the reaction kettle, add 0.8 kilograms of choline chloride, and follow the predetermined procedure at 100°C (1h)-150°C (2h)-200°C ( 1h) Gradually raise the temperature at -250°C (0.5h), add 0.8 kg of yuntai lactone after the heating process is completed, put it in the reaction kettle, and the reaction is completed to obtain a polyhexamethylene guanidine propionate polymer melt;

[0024] c. Prepare the solution

[0025] Move the polymer melt in the reaction kettle into the hydrolysis tank, add pure water ...

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PUM

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Abstract

The invention discloses polyhexamethylene guanidine propionic acid and preparing method thereof. The preparing method employs stepwise synthesis, which includes steps of: sufficiently mixing dicyandiamide and alanine under high temperature to synthesize aminoguanidine propionic acid, mixing the aminoguanidine propionic acid, triethylidenepropyldiamine and initiator under high temperature to synthesize the polyhexamethylene guanidine propionic acid. Advantages of the invention are: sterilization effect is excellent, toxity is actually nontoxic level, effect of sterilization is better than existent technique, due to overcoming strong hygroscopicity in existence, the polyhexamethylene guanidine propionic acid can be produced to stable powder, thereby being widely used in fields such as weave, plastic, daily chemicals and water treatment.

Description

technical field [0001] The invention relates to a polymer and a preparation method thereof, in particular to a polyhexamethylene guanidine propionate (also known as polyolefinyl guanidine propionate) and a preparation method thereof. Background technique [0002] The application of guanidine disinfectants has a history of more than 50 years, from 1,6-bis(n-p-chlorohexidine) hexane (also known as chlorhexidine, chlorhexidine) to polyhexaethylene, which was used in the 1950s. Methyl biguanide salts, because of their low degree of polymerization, have weak bactericidal efficacy, high toxicity and irritation, and bacteria are prone to drug resistance, so they have gradually begun to withdraw. Since the 1990s, polyhexamethyleneguanidine salts with higher bactericidal efficacy have been developed internationally. Polyhexamethyleneguanidine phosphate and polyhexamethyleneguanidine hydrochloride have been developed. Polyhexamethyleneguanidine phosphate is highly toxic (LD50>2000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/00A01N47/44A01P3/00
Inventor 余刚
Owner SHANGHAI HIPOLY IND
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