Detail of "3081-14-9"

Reference

Autoxidation of N,N'-disubstituted p-phenylenediamines in the presence of metals of variable valence

Autoxidation of N,N'-disubstituted p-phenylenediamines in the presence of metals of variable valence. Giurginca, M.; Ivan, G. (Gumi- Muanyagfeldolg. Kutatointez., Bucharest, Rom.). Muanyag Gumi, 20(12), 355-9 (Hungarian) 1983. CODEN: MUGUAO. ISSN: 0027-2914. DOCUMENT TYPE: Journal CA Section: 39 (Synthetic Elastomers and Natural Rubber) Metal ions capable of existing in various oxidn. states catalyze the oxidn. of N,N'-disubstituted phenylenediamines, thus reducing their effectiveness as antiaging agents for rubbers. The autoxidn. of N,N'-bis(1,4-dimetylpentyl)-p-phenylenediamine [3081-14-9], N-isopropyl-N'-phenyl-p-phenylenediamine [101-72-4], N-(1,4-dimethylbutyl)-N'-phenyl-p-phenylenediamine [3081-14-9], and N,N'-diphenyl-p-phenylenediamine [74-31-7] in neutral, acidic, and basic media in the presence of CuSO4 and MnSO4 was examd. The highest reaction rates were obtained for basic and strongly acidic media. The reaction rate const. in the presence of Mn2+ was 100 times higher than in the absence of catalysts. The Mn2+ was much more effective as a catalyst than Cu2+. 74-31-7 and 18939-61-2 which are cas registry numbers of substances are two of reagents here. The Cu2+ acted as an electron acceptor while the Mn2+ acted as both electron acceptor and donor using the O dissolved in the reaction medium as intermediate. Thus, the autoxidn. was affected by H+ and OH-, as well as the metal ions. .

Thermoplastic polyurethane-polymer compositions and their preparation

Thermoplastic polyurethane-polymer compositions and their preparation. Statton, Gary L. (Atlantic Richfield Co., USA). U.S. US 3987012 19 Oct 1976, 5 pp. 61263-04-5 and 61263-03-4 are cas registry numbers. These chemicals are also mentioned in this article. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C08G018-62. NCL: 260077500CR. APPLICATION: US 75-550254 18 Feb 1975. DOCUMENT TYPE: Patent CA Section: 38 (Elastomers, Including Natural Rubber) Elastic properties of polyurethane-polyurea molding compns. were improved by addn. of 10-50% of a mixt. of secondary and tertiary arom. diamines. Thus, a mixt. of OH-terminated polybutadiene 85.0, 4,4'-diphenylmethane diisocyanate 58.45, and N,N'-bis(1,4-dimethylpentyl)-1,4-benzenediamine [3081-14-9] contg. 6 wt.% N,N,N'-tris(1,4-dimethylpentyl)-1,4-benzenediamine [61263-02-3], 62.37 g gave on curing a polymer sol. in C6H6 and having tensile strength 3468 psi, elongation 563%, tear strength 586 psi, Shore D hardness 61, and 100, 200 and 300% modulus 1450, 1518 and 1580, resp. .