Reference

Chromatographic analysis of tar dyes in cosmetic products

Chromatographic analysis of tar dyes in cosmetic products. Part 3. Ohnishi, Shigeki; Nishijima, Yasushi; Kijima, Keiji; Kano, Shizuo (Cosmet. Lab., Kanebo Ltd., Odawara, Japan). Bunseki Kagaku, 26(12), 814-18 (Japanese) 1977. CODEN: BNSKAK. ISSN: 0525-1931. DOCUMENT TYPE: Journal CA Section: 62 (Essential Oils and Cosmetics) Fat-sol. tar dyes for cosmetic products (C.I. No. 12120 [2425-85-6], 26100 [85-86-9], 12085 [2814-77-9], 12075 [3468-63-1], 12315 [6448-95-9], 26105 [85-83-6], 12140 [3118-97-6], 12100 [2646-17-5], 11680 [2512-29-0], 11380 [85-84-7], 11390 [131-79-3], and 47000 [8003-22-3]) were sepd. on a LiChrosorb SI 100 column by an isocratic elution technique. The eluent was monitored by a wavelength tunable detector (420-500 nm). Suitable solvent systems were Et2O-n-hexane for the sepn. of No. 12140 and 12100, Me2CO-n-hexane for the sepn. of No. 12075 and 12315, and CHCl3-n-hexane for other 8 dyes. The plots of peak height vs. amount of tar dyes were linear with the injection volume of 5 mL or less without reducing the column efficiency. The recoveries from wax base of lipsticks were in the range 91.9-97.0%.

Water-based pigmented ink compositions for writing

Water-based pigmented ink compositions for writing. Arata, Satoru (Mikuni Shikiso K. K., Japan). Jpn. Kokai Tokkyo Koho JP 03255182 A2 14 Nov 1991 Heisei, 6 pp. (Japan). CODEN: JKXXAF. CLASS: ICM: C09D011-16. ICS: C09D011-16. APPLICATION: JP 90-55874 6 Mar 1990. DOCUMENT TYPE: Patent CA Section: 42 (Coatings, Inks, and Related Products) The title compns., having good storage stability and resistance to light, water, etc., contain pigments, drying inhibitors, and dispersing agents comprising alkali-neutralized copolymers of 50-95 mol % hydrophobic monomers and 5-50 mol % maleic anhydride (I) and/or acid. A mixt. of :8 (mol) I-Me acrylate-styrene copolymer ammonium salt, carbon black, ethylene glycol, H2O, and urea was prepd., freed of large pigment particles, and used in a felt tip pen which showed writing life at 50° >12 mo, vs. 3 without urea.Except for chemicals metioned above, 139439-74-0 and 6448-95-9 are also used. .