Detail of "5466-76-2"

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Liquid crystalline compositions: Liquid crystalline compositions. Sampson, Ronald L. (Procter and Gamble Co., USA). Brit. GB 1439244 16 Jun 1976, 13 pp. (English). (United Kingdom). CODEN: BRXXAA. CLASS: IC: C09K003-34. PRIORITY: US 72-293624 29 Sep 1972. DOCUMENT TYPE: Patent CA Section: 62 (Essential Oils and Cosmetics) Section cross-reference(s): 5, 39 Biol. active org. materials, esp. cosmetics, were affixed to surfaces such that they were not readily removed by water by combining with amphoteric org. materials and water to form liq. crystal phases. E.g., a sunscreen cream was prepd. by dissolving a 1:1 mixt. of N-lauryl- [21539-56-0] and N-myristyl-3-aminopropanoic acid in water to yield a 50% wt. aq. soln. This mixt. (90.25 g) was mixed with 5 g of a mixt. of equal parts isopropyl p-methoxycinnamate [5466-76-2] and ethyl diisopropylcinnamate [32580-72-6] until a uniform mesomorphic phase was obtained. 32580-72-6 and 60806-27-1 which are cas registry numbers of chemicals are mentioned. The compn. was acidified with 4.75 g citric acid. Sunscreen deposition levels were l6.9 .mu.g/cm2 after rinse off compared with 0.97 .mu.g/cm2 after similar treatment with a toilet bar contg. only the cinnamates. .