C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 65/11 (2006.01) C07C 51/41 (2006.01) C07C 51/43 (2006.01)
Patent
CA 2336671
A crystal of 2-hydroxynaphthalene-3-carboxylic acid (BON), characterized in that the mean particle diameter is 157 µm or above and the content of particles having diameters of 74 µm or below is 14 % or below. This crystal can be prepared by a process comprising either the step of recrystallizing BON, particularly at high temperature, or the step of conducting at high temperature the acid deposition of BON constituting the production process thereof.
L'invention concerne un cristal d'acide 2-hydroxynaphtalène-3-carboxylique (BON), se caractérisant par le fait que son diamètre de particule moyen est supérieur ou égal à 157 µm et que la proportion de particules possédant un diamètre inférieur ou égal à 74 µm est inférieure ou égale à 14 %. On peut préparer ce cristal par un procédé consistant à effectuer une recristallisation de BON, en particulier à haute température, ou à réaliser à haute température le dépôt acide de BON qui constitue son procédé de production.
Izumichi Nobutaka
Kato Hiroyuki
Kitayama Masaya
Ueno Ryuzo
Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo
Kirby Eades Gale Baker
LandOfFree
Crystal of 2-hydroxynaphthalene-3-carboxylic acid and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Crystal of 2-hydroxynaphthalene-3-carboxylic acid and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crystal of 2-hydroxynaphthalene-3-carboxylic acid and... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1859933