37 results about "2-propenoic acid" patented technology

There is provided a photostable and synergistically enhanced topical sunscreen composition that provides increased substantivity, waterproofness, sweat resistance and rub off resistance. There is further provided methods of enhancing the photostability of a sunscreen active in a topical sunscreen composition, synergistically enhancing the UV absorbance of a topical sunscreen composition having a sunscreen active, and enhancing the substantivity, waterproofness, sweat resistance and rub off resistance in a topical sunscreen composition. The preferred compositions and methods have a sunscreen active, a cosmetically acceptable vehicle, and novel 2-substituted-3,3-diaryl-2-propenoic acid derivatives with [A] a C16 to C50 straight or branched chain, substituted or un-substituted, conjugated or non-conjugated hydrocarbon, or [B] a siloxane, polysiloxane, organo-modified polysiloxane residue, a group represented by the formula R10[Si(R10)2]n— and R11 which is a silicone residue derived from a silicone represented by the formula R11OH having a molecular weight up to about 30,000, wherein each R10 is independently selected from the group consisting of alkyl, alkoxy, aryl and aryloxy and n is from 1 to about 500.

This invention provides a coloring matter-sensitized photoelectric conversion element comprising an electrolyte layer (6) provided between a semiconductor electrode (3) formed of, for example, semiconductor fine particles, onto which a coloring matter for sensitizing has been adsorbed, and a counter electrode (5), wherein two types of coloring matters are used as the coloring matter and are adsorbed on respective different sites on the surface of the semiconductor electrode (3). The semiconductor particles are formed of, for example, TiO2. The two types of coloring matters are, for example, tris(isothiocyanato)-ruthenium(II)-2,2':6',2''-terpyridine-4,4',4''-tricarboxylic acid and 2-cyano-3-[4-[4-(2,2-diphenylethenyl)phenyl]-1,2,3,3a,4,8b-hexahydrocyclopent[b]indol-7-yl]-2-propenoic acid. The above constitution can realize the provision of a coloring matter-sensitized photoelectric conversion element, such as coloring matter-sensitized solar cells which can realize higher level of light absorbance and photoelectric conversion efficiency than the case where a single type of high-purity coloring matter is used, and a process for producing the coloring matter-sensitized photoelectric conversion element.