Drug – bio-affecting and body treating compositions – Topical sun or radiation screening – or tanning preparations – Aromatic acid or derivative containing
Patent
1976-01-16
1977-07-19
Ore, Dale R.
Drug, bio-affecting and body treating compositions
Topical sun or radiation screening, or tanning preparations
Aromatic acid or derivative containing
424DIG13, 424168, 424362, A61K 744
Patent
active
040369510
ABSTRACT:
Alkyl esters of aminosalicylic acid, said alkyl group having from 1 to 18 carbon atoms in chain length; alkenyl esters of aminosalicylic acid, said alkenyl group selected from the group consisting of vinyl, allyl, undecenyl, oleyl and linolenyl groups, and cyclic esters of aminosalicylic acid, said cyclic group being the cyclohexyl, phenyl and menthyl groups, having ultra-violet screening properties to absorb light rays within the wave-length range of 2950 A. to 3200 A. while transmitting the light rays beyond the 3200 A. range to permit the desirable tanning of the skin without solar burn. The respective esters of aminosalicylic acid are prepared by the reduction of the appropriate nitro-salicylic acid ester with Raney nickel and hydrogen in the presence of ethyl acetate. The respective esters are obtained as oils or solid crystalline substances and are soluble in alcohols, chloroform, acetone and benzene but insoluble in water. The ultra-violet absorption spectra for the respective compounds are described. Compositions comprising the above compounds together with the method for their preparation and the method for the use to achieve an ultraviolet filtering action on the skin of humans and animals are described.
REFERENCES:
patent: 2604488 (1952-07-01), Freire et al.
patent: 2647853 (1953-08-01), Larde et al.
patent: 2667440 (1954-01-01), Douris et al.
patent: 2676902 (1954-04-01), Boger et al.
patent: 2853423 (1958-09-01), La Via
J. of American Chemical Soc., 1952, vol. 74, pp. 2589-2593.
Chem. Abs., 1950, vol. 44, pp. 4149h.
Chem. Abs., 1952, vol. 46, pp. 1656e, 2181(b), 4657(b), 9215(b).
Chem. Abs., 1953, pp. 5543(b)and(i).
Chem. Abs., 1954, vol. 48, pp. 9549(c).
Chem. Abs., 1959, vol. 53, pp. 6533(g).
Chem. Abs., 1959, vol. 53, pp. 2057(c).
Chem. Abs., 1962, vol. 56, pp. 8843(g).
Chem. Abs., 1965, pp. 18912(c).
Halpern Alfred
Sasmor Ernest J.
Ore Dale R.
Synergistics, Inc.
LandOfFree
Ultra-violet filtration with certain aminosalicylic acid esters does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ultra-violet filtration with certain aminosalicylic acid esters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultra-violet filtration with certain aminosalicylic acid esters will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2293451