Diaminodiphenylmethan
Web4,4′-Diaminodiphenylmethane (DDM) is an aromatic amine commonly used as a chemical intermediate in the production of isocyanates, polyurethanes, polymers, and elastomers. This compound is a carcinogen in laboratory animals, but no definitive data are available regarding its carcinogenicity in humans. On account of its diffusion and toxicity ... Web4,4′-Diaminodiphenylmethane is used as an intermediate for the preparation of 4,4’-methylenediphenyldiisocyanate, 4,4′-methylenebis(cyclohexaneamine). It is also used in the preparation of polyurethane foams. Further, it is used as hardeners in …
Diaminodiphenylmethan
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WebDec 19, 2024 · In this study, a flame-retardant additive with 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) groups denoted DSD was successfully synthesized from DOPO, 4,4′-diaminodiphenyl sulfone (DDS), and salicylaldehyde. The chemical structure of DSD was characterized by FTIR–ATR, NMR, and elemental analysis. DSD … WebIt is proposed to purify 4,4'-diaminodiphenylmethane by forming an adduct of 4,4'-diaminodiphenylmethane with an alkali metal halide or cyanide, separating the adduct and decomposing the adduct to recover 4,4'-diaminodiphenylmethane (GB Patent No. 1 169 127), or by condensation reacting aniline and formaldehyde, and diluting, partially …
WebFeb 28, 2024 · A novel phosphorus-containing compound (DOPO-THPO) is synthesized via the Atherton-Todd-reaction between 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) and trihydroxymethylphosphine oxide (THPO), and then employed as flame retardant for diglycidyl ether of bisphenol A/4-4 diaminodiphenylmethane epoxy resin … WebReactivity Profile. 2,4'-DIAMINODIPHENYLMETHANE is readily oxidzable. Neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with …
WebAug 9, 2024 · Diglycidyl ether of bisphenol A (E-44) was provided by the Nantong Xingchen Synthetic Material Co., Ltd. (Hunan, China). Acetonitrile, absolute methanol, and 4,4-diaminodiphenylmethane (DDM, ≥98%) were obtained from the Beijing Chemical Plant (Beijing, China). Acetonitrile was dried over 4 Å molecular sieves before use.
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WebSubstance Name: 4,4’-Diaminodiphenylmethane (MDA) EC Number: 202-974-4 CAS number: 101-77-9 The substance is identified as a CMR according to Article 57(a) of Regulation (EC) 1907/2006 (REACH). Summary of the evaluation: According to Annex I to Directive 67/548/EEC, 4,4’-Diaminodiphenylmethane (MDA) is classified shuttle xpress im/sxWebTetraglycidyl-4,4'-diaminodiphenylmethane C25H30N2O4 CID 19771389 - structure, chemical names, physical and chemical properties, classification, patents ... shuttlexpress treiberWebMar 15, 2024 · A curable resin composition containing: a curable resin; and a curing agent containing an imide oligomer, the imide oligomer containing an aliphatic diamine residue- and/or aliphatic triamine residue-containing imide oligomer that has, in a main chain, an imide skeleton and a substituted or unsubstituted aliphatic diamine residue having a … the park ruapehuWeb4,4'-Methylenedianiline C13H14N2 CID 7577 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological ... the parkrunner bookWebWhat is 4,4´-Diaminodiphenylmethane (MDA) and where is it found? This chemical is used in the rubber industry, in footwear and raw material used in magnet wire enamels. It is a … shuttlexpress im/sxWebOct 15, 2024 · As PPD is known to cross-react with the plasticizer 4,4-diaminodiphenylmethane (DDM) 16 and azo dyes, 17 our patient was not tested with DDM, but this primary sensitization to PPD may in this case explain the skin reaction from the spectacles. However, none of the other cases with positive patch-test reactions to … the park royal sydneyWeb2,4'-Methylenedianiline C13H14N2 CID 14580 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological ... the park royal stretton warrington wa4 4ns