Compositions – Light transmission modifying compositions – Ultraviolet
Patent
1989-04-11
1991-04-30
Maples, John S.
Compositions
Light transmission modifying compositions
Ultraviolet
560 35, 558422, 562440, 564157, 564166, 564167, 564245, 564247, F21V 904, C07C25700, C07C22900, C07C25500
Patent
active
050116282
ABSTRACT:
Substituted benzamidines and their hydrochloride salts are useful as ultraviolet light absorbers, the benzamidines having the formula ##STR1## wherein: A.sup.1 and A.sup.2 may be the same or different and represent --COOR.sup.1, --CONR.sup.1 R.sup.2, --C.tbd.N or --C.sub.6 H.sub.5 ;
REFERENCES:
patent: 4021471 (1977-05-01), Virgilio et al.
patent: 4085062 (1978-05-01), Virgilio et al.
Y. Mori and J. Tsuji, Tetrahedron 27 (1971), pp. 3811-3819.
J. Sevcik, Acta. Univ. Palacki Olomuc., Fac. Reurm Nat., 1976, 49 (Chem 15), pp. 47-51.
Chemical Abstracts 87: 38331t (1977).
A. C. Hontz and E. C. Wagner, Org. Syn., Coll. vol. IV, John Wiley & Sons, New York, 1963, pp. 383-386.
S. P. Joshi et al., J. Chem. Soc., (1936), pp. 793-797.
J. A. Smith and H. Taylor, J. Chem. Soc.(B), 1969, 64-65.
J. Sevcik, Monatshefte fur Chemie, 100, 1307-1309 (1969).
Chem. Abstract 81:91185a [for J. Sevcik, Acta Univ. Palacki, Olomuc., Fac. Rerum Natur. 1973, 41, Chemica 13, 131-138.]
Chem. Abstract 90:129436j [for J. Sevcik, Acta Univ. Palacki, Olomuc., Fac. Rerum Natur. 1977, 53 (Chem. 16)37-46.]
Cohen Isaac D.
Virgilio Joseph A.
Givaudan Corporation
Maples John S.
Tavares Robert F.
Tucker Philip
Vag Linda A.
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