Drug – bio-affecting and body treating compositions – Topical sun or radiation screening – or tanning preparations
Reexamination Certificate
2001-09-21
2004-12-14
Dodson, Shelley A. (Department: 1616)
Drug, bio-affecting and body treating compositions
Topical sun or radiation screening, or tanning preparations
C424S060000, C424S400000, C424S401000, C514S937000, C514S938000, C514S939000, C514S943000, C536S001110, C536S004100
Reexamination Certificate
active
06830746
ABSTRACT:
BACKGROUND OF THE INVENTION
I. Field of the Invention
The present invention relates to sunscreen compositions. More particularly, the present invention relates to sunscreen compositions that have enhanced sensory properties when applied.
II. Description of the Prior Art
Sunscreen compositions are applied to the skin to protect the skin from the sun's ultraviolet rays that can lead to erythema, a reddening of the skin also known as sunburn. Sunlight or ultraviolet radiation in the UV-B range has a wavelength of 290 nm to 320 nm and is known to be the primary cause of sunburn. Ultraviolet rays at a wavelength of 320 nm to 400 nm, known as UV-A radiation, produces tanning of the skin. However, in the process of doing so, the UV-A rays can damage or harm the skin.
Besides the immediate malady of sunburn, excessive sunlight exposure can lead to skin disorders. For instance, prolonged and constant exposure to the sun may lead to actinic keratoses and carcinomas. Another long-term effect is premature aging of the skin. This condition is characterized by skin that is wrinkled, cracked and has lost its elasticity.
As stated above, sunscreens are typically formulated with the goal of inhibiting skin damage from the sun's rays. The sunscreen composition filters or blocks the harmful UV-A and UV-B rays that can damage and harm the skin. It is believed that sunscreen agents accomplish this by absorbing the UV-A and/or UV-B rays.
In general, sunscreen compositions are oil-in-water emulsions. In this system, the UV-absorbing compounds are typically incorporated into the oil phase.
Consumers consider many factors when purchasing a sunscreen product, such as, the sun protection factor (SPF), how durable the product is after applying it over the skin, the shelf life of the product, and product form (i.e., lotions, gels, creams, and sprays). Another important and influential property of a sunscreen product considered by a consumer is how the product feels and how well it spreads over the skin. Typically, consumers want a sunscreen that feels soft and silky and can be applied in a smooth, continuous film over the skin. Ultimately, product feel could determine whether the consumer decides to purchase the product.
The sunscreen compositions of the present invention provide the user with an enhanced soft, silky feel when applied to skin while still providing superior protection from damaging ultraviolet light.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a sunscreen composition that can be effectively applied as a lotion.
It is another object of the present invention to provide such a sunscreen composition that has an enhanced soft, silky feel when applied to the skin.
It is still another object of the present invention to provide such a sunscreen composition that spreads uniformly over the skin.
It is yet another object of the present invention to provide such a sunscreen composition that is a stable oil-in-water emulsion.
To accomplish the foregoing objects and advantages, the present invention, in brief summary, is a sunscreen composition that has at least one sunscreen agent, at least one glucoside emulsifier, and water. Preferably, the sunscreen composition also contains at least one of the following additional components: an emulsifier other than glucoside, emollient, skin-feel additive, moisturizing agent, film former/waterproofing agent, pH adjuster/chelating agent, preservative, or any combinations thereof.
REFERENCES:
patent: 4656029 (1987-04-01), Grollier et al.
patent: 5032390 (1991-07-01), Iwaya et al.
patent: 5093107 (1992-03-01), Matravers
patent: 5208011 (1993-05-01), Vaughan
patent: 5208013 (1993-05-01), Klein
patent: 5306486 (1994-04-01), McCook et al.
patent: 5372805 (1994-12-01), Finkel et al.
patent: 5417961 (1995-05-01), Nearn et al.
patent: 5486631 (1996-01-01), Mitchnick et al.
patent: 5543136 (1996-08-01), Aldous
patent: 5554374 (1996-09-01), Olivier-Terras
patent: 5571503 (1996-11-01), Mausner
patent: 5614178 (1997-03-01), Bloom et al.
patent: 5658580 (1997-08-01), Mausner
patent: 5667765 (1997-09-01), Hansenne et al.
patent: 5672337 (1997-09-01), Ascione et al.
patent: 5676934 (1997-10-01), Siegfried
patent: 5725844 (1998-03-01), Gers-Barlag et al.
patent: 5730993 (1998-03-01), Allard et al.
patent: 5733531 (1998-03-01), Mitchnick et al.
patent: 5770183 (1998-06-01), Linares
patent: 5776438 (1998-07-01), Tokue et al.
patent: 5788954 (1998-08-01), Bonda et al.
patent: 5804168 (1998-09-01), Murad
patent: 5827508 (1998-10-01), Tanner et al.
patent: 5843411 (1998-12-01), Hernandez et al.
patent: 5851544 (1998-12-01), Penska et al.
patent: 5891452 (1999-04-01), Sebillote-Arnaud et al.
patent: 5902591 (1999-05-01), Herstein
patent: 5916542 (1999-06-01), Fossati
patent: 5916544 (1999-06-01), Liu et al.
patent: 5922331 (1999-07-01), Mausner
patent: 5948416 (1999-09-01), Wagner et al.
patent: 5951990 (1999-09-01), Ptchelintsev
patent: 5961961 (1999-10-01), Dobkowski et al.
patent: 5968529 (1999-10-01), Horino et al.
patent: 5976513 (1999-11-01), Robinson
patent: 5976555 (1999-11-01), Liu et al.
patent: 6015548 (2000-01-01), Siddiqui et al.
patent: 6024941 (2000-02-01), Yanagida et al.
patent: 6036945 (2000-03-01), Deblasi et al.
patent: 6039935 (2000-03-01), Mohammadi
patent: 6043204 (2000-03-01), Kaufman et al.
patent: 6048517 (2000-04-01), Kaplan
patent: 6066327 (2000-05-01), Gubernick et al.
patent: 6068848 (2000-05-01), Gubernick et al.
patent: 6071501 (2000-06-01), Robinson
patent: 6090369 (2000-07-01), Stewart
patent: 6110477 (2000-08-01), Hernandez et al.
patent: 6123928 (2000-09-01), Sovak et al.
patent: 6130254 (2000-10-01), Fisher et al.
patent: 6132737 (2000-10-01), Wolf et al.
patent: 6153205 (2000-11-01), Boussouira et al.
patent: 6153208 (2000-11-01), McAtee et al.
patent: 6162450 (2000-12-01), Ptchelintsev et al.
patent: 6171580 (2001-01-01), Katsuyama et al.
patent: 6171602 (2001-01-01), Roman
Fuller Jennifer
SaNogueira James
Dodson Shelley A.
Ohlandt Greeley Ruggiero & Perle LLP
Playtex Products Inc.
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