专利号:US-4448446-A 优先权日:1981-12-09 标题:Process for the purification of triphenylmethane compounds and pressure sensitive copysheet containing same 发明人:FLORES ROBERT J 权利人:SHERWIN WILLIAMS CO 摘要:Triphenylmethane dyes are obtained in a purified or more concentrated condition which eliminates the excess aromatic amines and by-products obtained during the synthesis of the triphenylmethane dyes. These purified triphenylmethane dyes show special utility when used in combination with an electron acceptor (Lewis acid) to produce carbonless copy paper or when used as reactants in the manufacture of other dyes.
参考文献:10.1007/s11356-014-2789-8 摘要:Yavuz Y, Shahbazi R, Koparal AS, Öğütveren ÜB. Treatment of Basic Red 29 dye solution using iron-aluminum electrode pairs by electrocoagulation and electro-Fenton methods. Environmental Science and Pollution Research. 2014 Apr 01;21(14):8603–9. doi: 10.1007/s11356-014-2789-8.