Photostabilizers, UV absorbers, and methods of...

Details Photostabilizers, UV absorbers, and methods of... Photostabilizers, UV absorbers, and methods of...

2005-11-08

2005-11-08

Davis, Zinna Northington (Department: 1625)

Drug, bio-affecting and body treating compositions

Topical sun or radiation screening, or tanning preparations

Aromatic acid or derivative containing

C424S059000, C558S400000, C560S081000

Reexamination Certificate

active

06962692

ABSTRACT:
Polymers and compounds including a diphenylmethylene or a 9H-fluorene moiety; and sunscreen compositions including a mixture of a photoactive compound and any one of the foregoing derivatives are disclosed herein. Also disclosed are methods for stabilizing a sunscreen composition by the addition of one or more of the foregoing derivatives, methods of filtering out ultra-violet light from a substrate by the use of one or more such derivatives, and methods for terminating a polymerization reaction by the addition of derivatives of diphenylmethylene and/or 9H-fluorene. Synergistic combinations of the polymer with (1) diesters or polyesters of a naphthalene dicarboxylic acid, or (2) oxybenzone enhance the photostability of sunscreen compositions containing a photodegradable sunscreen active compound, such as avobenzone.

REFERENCES:
patent: 3215724 (1965-11-01), Strobel et al.
patent: 3215725 (1965-11-01), Strobel et al.
patent: 3272855 (1966-09-01), Strobel et al.
patent: 3275520 (1966-09-01), Strobel et al.
patent: 3337357 (1967-08-01), Strobel et al.
patent: 3445545 (1969-05-01), Skoultchi
patent: 3883488 (1975-05-01), Pearson et al.
patent: 3992356 (1976-11-01), Jacquet et al.
patent: 4011266 (1977-03-01), Pearson et al.
patent: 4107290 (1978-08-01), Jacquet et al.
patent: 4387089 (1983-06-01), De Polo
patent: 4489057 (1984-12-01), Welters et al.
patent: 4562067 (1985-12-01), Hopp et al.
patent: 4622354 (1986-11-01), Iseler et al.
patent: 5210275 (1993-05-01), Sabatelli
patent: 5576354 (1996-11-01), Deflandre et al.
patent: 5882633 (1999-03-01), Pisson et al.
patent: 5972324 (1999-10-01), Zofchak et al.
patent: 5993789 (1999-11-01), Bonda et al.
patent: 6033649 (2000-03-01), Gonzenbach et al.
patent: 6284916 (2001-09-01), Bonda et al.
patent: 6444195 (2002-09-01), Cole et al.
patent: 6485713 (2002-11-01), Bonda et al.
patent: 6491901 (2002-12-01), Gers-Barlag et al.
patent: 2001/0022966 (2001-09-01), Gers-Barlag et al.
patent: 2001/0055599 (2001-12-01), Drzewiecki et al.
patent: 0 430 092 (1991-06-01), None
patent: 1 358 789 (1974-07-01), None
patent: WO 95/09884 (1995-04-01), None
patent: WO 00/44340 (2000-08-01), None
patent: WO 00/47550 (2000-08-01), None
“Photostability of HallStar Photostable SPF 32 Sunscreen Compared to Neutrogena UVA/UVB Sunblock SPF 30,” Suncare Research Laboratories, Memphis, Tennessee (Oct. 5, 2000).
Beckwith, in “The chemistry of amides: Synthesis of amides,” Zabicky, J., Ed. Interscience: New York, pp. 73-185 (1970).
Bentley et al., “Medium Effects on the Rates and Mechanisms of Solvolytic Reactions,”Adv. Phys. Org. Chem., vol. 14, pp. 1-67 (1977).
Bentley et al., “YχScales of Solvent Ionizing Power,”Progr. Phys. Org. Chem., vol. 17, pp. 121-158 (1990).
Dimroth et al.,Justus Liebigs Ann. Chem., vol. 661 pp. 1-37 (1969).
Fainberg et al., “Correlation of Solvolysis Rates. III. t-Butyl Chloride in a Wide Range of Solvent Mixtures,”J. Am. Chem. Soc., vol. 78 pp. 2770-2777 (1956).
Grunwald et al., “The Correlation of Solvolysis Rates,” J. Am. Chem. Soc., vol. 70, pp. 846-854 (1948).
Haslem, “Recent Developments in Methods For the Esterification and Protection of the Carboxyl Group,”Tetrahedron, vol. 36, pp. 2409-2433 (1980).
Kamlet et al., “An Examination of Linear Solvation Energy Relationships,”Progr. Phys. Org. Chem., vol. 13, pp. 485-630 (1981).
Kosower, “The Effect of Solvent on Spectra. I. A New Empirical Measure of Solvent Polarity Z-Values,”J. Am Chem. Soc., vol. 80, pp. 3253-3260 (1958).
McNaught et al., “IUPAC Compendium of Chemical Terminology,” 2ndEd. (1997).
Reichardt, “Solvents and Solvent Effects in Organic Chemistry,” 2nd Ed., Chap. 7: Empirical Parameters of Solvent Polarity, VCH Publishers, New York, New York (1998).
Sayre et al., “Photostability Testing of Avobenzone,” Allured's Cosmetics & Toiletries Magazine, vol. 114, No. 5, pp. 85-91 (May 1999).
Tarras-Wahlberg et al., “Changes in Ultraviolet Absorption of Sunscreens After Ultraviolet Radiation,”J. Investigative Dermatology, vol. 113, No. 4, pp. 547-553 (1999).
Turro,Modern Molecular PhotochemistryBenjamin/Cummings Publ. Co., Menlo Park, California, pp. 296-361 (1991).

Affiliated with

Also associated with

Rating

Photostabilizers, UV absorbers, and methods of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photostabilizers, UV absorbers, and methods of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photostabilizers, UV absorbers, and methods of... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3520710