42774-15-2

Basic information

• Product Name: N,N'-Bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,3-benzenedicarboxamide
• Synonyms: 1,3-Benzendicarboxamide,N,N'-Bis(2,2,6,6-Tetramethyl-4-Piperidinyl);Nylostab S-Eed;Polyamide Stabilizer;1,3-Benzenedicarboxamide, N,N-bis(2,2,6,6-tetramethyl-4-piperidinyl)-;1,3-Benzenedicarboxamide,N,N'-bis(2,2,6,6-tetramethyl-4-piperdinyl);N,N''-BIS(2,2,6,6-TETRAMETHYL-4-PIPERIDINYL)-1,3-BENZENEDICARBOXAMIDE;N,N'-bis(2,2,6,6-tetramethyl-4-piperidyl)isophthalamide;Light stabilizer 438
• CAS NO: 42774-15-2
• Molecular Formula: C₂₆H₄₂N₄O₂
• Molecular Weight: 442.64
• EINECS: 419-710-0
• Mol File: 42774-15-2.mol
• Article Data: 8

Chemical Properties

• Boiling Point: 605.1 °C at 760 mmHg
• Flash Point: 155.5 °C
• Appearance: /
• Density: 1.09g/cm³
• Vapor Pressure: 0Pa at 25℃
• Storage Temp.: under inert gas (nitrogen or Argon) at 2–8 °C
• Solubility: Chloroform (Slightly), Methanol (Slightly, Heated)
• PKA: 13.67±0.60(Predicted)
• Water Solubility: 139mg/L at 30℃
• CAS DataBase Reference: N,N'-Bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,3-benzenedicarboxamide(CAS DataBase Reference)
• NIST Chemistry Reference: N,N'-Bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,3-benzenedicarboxamide(42774-15-2)
• EPA Substance Registry System: N,N'-Bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,3-benzenedicarboxamide(42774-15-2)

Safety Data

• Hazard Codes: Xn
• Statements: 22-36
• Safety Statements: 22-25-26
• Hazardous Substances Data: 42774-15-2(Hazardous Substances Data)

Usage

Flammability and Explosibility

Nonflammable

Upstream product

• 36768-62-4 4-AMINO-2,2,6,6-TETRAMETHYLPIPERIDINE 
• 3126-90-7 dibutyl isophthalate 
• 636-53-3 diethyl isophthalate 
• 1459-93-4 dimethyl Isophthalate 
• 99-63-8 benzene-1,3-dicarbonyl dichloride 
• 1528-44-5 diisopropyl isophthalate 

Relevant articles and documents

Novel crystal structure polyamide stabilizer

The invention discloses a novel crystal structure polyamide stabilizer, and relates to the novel crystal structure polyamide stabilizer N,N'-bis (2, 2, 6, 6-tetramethyl-4-piperidyl)-1, 3-phthalamide.The stabilizer is characterized in that in a powder X-ray diffraction pattern of Cu Ka ray 1.5418 angstroms, a unique sharp X-ray diffraction peak is shown at a diffraction angle of 2theta=5.646 degrees, the relative intensity is 100.0%, and the relative intensity of other peaks is lower than 17.0%; macroscopically visible acicular white crystals have a melting point of 278-280 DEG C and a DSC differential thermal analysis phase change peak value of 279.6 DEG C. The preparation method is characterized in that dimethyl isophthalate or diethyl isophthalate and stoichiometric excess 4-amino-2, 2,6, 6-tetramethylpiperidine are used as raw materials, no solvent or catalyst is used, a reaction is carried out for 1-2 hours at the temperature of 190 DEG C, then the temperature is raised to 220-240 DEG C, a reaction is carried out for 3-6 hours, aminolysis is directly carried out, and a target novel crystal structure product is prepared.

POLYMER ADDITIVE AND A METHOD FOR THE PRODUCTION THEREOF

The invention relates to a compound of formula (I), characterised by the characteristic signals in the X-ray diffraction powder pattern measured with Cu Kalpha radiation (0.154 nm) at a 2-theta angle of 15.0 and 22.7 with a high intensity, and of 5.0, 11.3, 18.9, 20.8, 21.6 and 23.6 with a medium intensity, as well as to a method for producing the compound of formula (I) by reacting at least one isophthalic acid diester of formula (II) where R1 and R2 are the same or different and stand for an aliphatic group, with two equivalents 4-amino-2,2,6,6-tetramethylpiperidine, in the presence of at least one catalyst from the group of metal alcoholates and at a reaction temperature of between 50 and 150° C.

Preparation method of multifunctional polyamide stabilizer

The invention relates to a preparation method of N,N'-bis(2,2,6,6-tetramethyl-4-piperidyl)-1,3-phthaldiamide. Dimethyl isophthalate or diethyl isophthalate and 2,2,6,6-tetramethyl-4-aminopiperidine are used as raw materials to react at 190 DEG C for 1-2 h in the absence of a solvent and a catalyst, then the obtained material is heated to 220-240 DEG C to react for 3-6 h, direct aminolysis is performed, and a target product is prepared.