초록 ▼

A method of preparing a sunscreen including a solvent system and a filter system, the method including the step of controlling the polarity of the solvent system to control the rate of photodecay of the filter system, as well as sunscreen compositions and compounds for producing sunscreen compositio

A method of preparing a sunscreen including a solvent system and a filter system, the method including the step of controlling the polarity of the solvent system to control the rate of photodecay of the filter system, as well as sunscreen compositions and compounds for producing sunscreen compositions, are disclosed.

대표청구항 ▼

1. A sunscreen composition, comprising a filter system consisting essentially of one or more photoactive compounds selected tom the group consisting of p-aminobenzoic acid and salts and derivatives thereof; anthranilate and derivatives thereof; salicylate and derivatives thereof; cinnamic acid and d

1. A sunscreen composition, comprising a filter system consisting essentially of one or more photoactive compounds selected tom the group consisting of p-aminobenzoic acid and salts and derivatives thereof; anthranilate and derivatives thereof; salicylate and derivatives thereof; cinnamic acid and derivatives thereof; dihydroxycinnamic acid and derivatives thereof camphor and derivatives thereof; trihydroxycinnamic acid and derivatives thereof, dibenzalacetone naptholsulfonate and salts and derivatives thereof; benzalacetophenone naptholsulfonate and salts and derivatives thereof; dihydroxy-naphthoic acid and salts thereof; o-hyoxydiphenyldisulfonate and salts and derivatives thereof; p-hyoxydiphenyldisulfonate and salts and derivatives thereof; cournarin and derivatives thereof; diazoles derivatives; quinine derivatives and salts thereof, quinoline derivatives; hydroxy-substituted benzophenone derivatives; methoxy-substituted benzophenone derivatives; uric acid derivatives; vilouric acid derivatives; tannic acid and derivatives thereof; hydroquinone; benzophenone derivatives; and dibenzoylmethane derivatives, dissolved in a solvent system comprising a lipophilic organic compound, wherein a mixture of said filter system and said solvent system in the ratio present in said composition has a dielectric constant of at least about 8.