P-N collaborative type flame-retardant compound and preparation method thereof
A compound, P-N technology, applied in chemical instruments and methods, compounds of Group 5/15 elements of the periodic table, organic chemistry, etc., can solve the problems of restricting the development of the flame retardant material industry, starting late, etc. The effect of simple control and preparation method
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0030] Example 1
[0031] In a 250ml three-necked flask equipped with a stirrer and a water separator, after nitrogen protection, add 0.1mol carboxyethylphenylphosphinic acid and 0.1mol ethylenediamine, and add 150ml o-dichlorobenzene, stirring, slowly Raise the temperature of the reaction system to 135°C, maintain the temperature for 3 hours, and continue to react at 160°C for 3 hours to remove the water produced by the reaction. Then the mixed reaction system is cooled and solidified. The solid is ground and washed with acetone, filtered with suction, and the filter residue is Vacuum drying forms the target PN synergistic flame-retardant compound with a yield of 95%, a melting temperature of 190±10°C, and a decomposition temperature of 230±5°C. The process route is:
[0032]
Example Embodiment
[0033] Example 2
[0034] In a 250ml three-necked flask equipped with a stirrer and a water separator, after nitrogen protection, add 0.1mol carboxyethylphenylphosphinic acid and 0.1mol ethylenediamine, and add 150ml high-boiling solvent oil, stirring, slowly Raise the temperature of the reaction system to 140°C, maintain the temperature for 4 hours, continue to heat up to 155°C and react for 4 hours, remove the water produced by the reaction, and then cool and solidify the mixed reaction system. The solids are ground and washed with ether, filtered with suction, and the filter residue is Vacuum drying forms the target PN synergistic flame-retardant compound, the yield is 94%, the melting temperature of the product is 190±10°C, and the decomposition temperature is 230±5°C.
Example Embodiment
[0035] Example 3
[0036] In a 250ml three-necked flask equipped with a stirrer and a water separator, after nitrogen protection, add 0.1mol carboxyethylphenylphosphinic acid and 0.1mol ethylenediamine, add 150ml xylene, stir, and slowly increase the temperature The reaction was refluxed at 140°C for 8 hours, and the reaction generated water was removed. Then, the mixed reaction system was cooled and solidified. The solid was ground and washed with ethyl acetate, filtered by suction, and the filter cake was vacuum dried to form the target PN synergistic flame retardant compound. The yield was 93%, the melting temperature of the product was 190±10°C, and the decomposition temperature was 230±5°C.
PUM
Property | Measurement | Unit |
---|---|---|
Melting temperature | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap