- Process for preparing dibasic salts of bisphenols
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The present invention discloses a process for preparing dibasic salt of bisphenol from bisphenol and alkali, wherein the bisphenol and the alkali are reacted in a reaction medium consisting of an organic solvent or an aqueous inorganic salt solution, and then through filtration, a highly pure dibasic salt of bisphenol is directly obtained at a yield of higher than 90%.
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Page/Page column 3
(2008/06/13)
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- CHLORINE-CONTAINING DIHYDROXY COMPOUNDS
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The conditions (process time, concentration, and temperature) were determined for the synthesis of a series of dihydroxy compounds based on hexachlorobenzene, phenolphthalein, 9,9-bis(hydroxyphenyl)fluorene, di(4-hydroxyphenyl)methane, and 2,2-di(4-hydroxyphenyl)propane.The products are of interest as intermediates for the production of polymers with increased fire resistance.
- Beev, A. A.,Mikitaev, A. K.,Afaunova, Z. I.,Korshak, V. V.
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p. 1953 - 1956
(2007/10/02)
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