Reference

Antioxidants

Antioxidants. VIII. Examination of antioxidative effect. Kurechi, Tsutao; Kato, Tetsuta (Tokyo Coll. Pharm., Hachijoji, Japan). Eisei Kagaku, 23(5), 319-24 (Japanese) 1977. CODEN: ESKGA2. ISSN: 0013-273X. DOCUMENT TYPE: Journal CA Section: 17 (Foods) The relation between the effect of antioxidants used as food additives and fats and oils was examd. The degree of oxidn. of fats and oils was detd. in terms of peroxide value and stability by the active O method (AOM). Pr [121-79-9] and isoamyl gallate [2486-02-4] gave the highest AOM stabilizing effect for vegetable oils, but butylated hydroxyanisole (I) [25013-16-5] was ineffective. Nordihydroguaiaretic acid [500-38-9] and I were most effective for prevention of oxidn. of lard and Me oleate [112-62-9], resp. The effect of other antioxidants decreased in the order of I, Et protocatechuate [3943-89-3] and guaiac resin, irresp. of the type of fats and oils.

Thermal recording materials

Thermal recording materials. Miyajima, Shigeru; Kurisu, Tokuo (Ricoh Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 61262186 A2 20 Nov 1986 Showa, 6 pp. (Japan) CODEN: JKXXAF. CLASS: ICM: B41M005-18. ICS: B41M005-18. APPLICATION: JP 85-105259 17 May 1985. DOCUMENT TYPE: Patent CA Section: 74 (Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes) Thermal recording materials contain heat-sensitive color-forming layers contg. leuco dyes and arom. compds. having 2 OH groups adjacent to the benzene rings, as color developers, and undercoat layers contg. metal compds.In this article, certain chemicals are used. One of their cas registry numbers is 3943-89-3 The materials give clear images with good oil and plasticizer resistances. Thus, 3'-(N-methyl-N-cyclohexylamino)-6'-methyl-7'-anilinofluoran 20, 10% poly(vinyl alc.) 20, and water 60 parts were mixed and pulverized to obtain a dispersion (A). Sep., 1-ethoxycarbonyl-3,4-dihydroxybenzene 35, SiO2 fine powder 4, stearamide 20, 10% poly(vinyl alc.) 60, and water 181 parts were mixed and pulverized to obtain a dispersion (B). Sep., Al stearate 20, 10% poly(vinyl alc.) 20, and water 60 parts were mixed and pulverized to obtain a dispersion (C). Then, 10 parts C and 5 parts 40% dispersion of fine powd. acrylate-styrene copolymer were mixed and coated onto a paper (45 g/m2) at 6 g/m2 (dry basis) to form an undercoat layer, which was coated with a mixt. of A 12, B 50, 10% aq. poly(vinyl alc.) 10, and water 30 parts at 4.5 g/m2 (dry basis) and calendered to obtain a recording paper. The paper was then applied to heat-sensitive recording to give a color image with excellent stability both to dioctyl adipate and cotton seed oil. .