4 results about "Homosalate" patented technology

The invention provides a condensation compound, a preparation method and application of the condensation compound in sunscreen cosmetics, the condensation compound is obtained through Knoevenagel condensation reaction of aromatic aldehyde and diisooctyl malonate, and the condensation compound can be used as a sunscreen enhancer of cosmetics such as sunscreen cream, sunscreen emulsion, sunscreen spray and sunscreen isolation cream, and is especially suitable for special sunscreen products for sensitive skin and acne skin. When the sunscreen composition is compounded with traditional sunscreen agents (such as homosalt, octocrylene, zinc oxide and the like), the use amount of organic sunscreen agents such as homosalt, octocrylene and the like can be reduced by 30%-40%, and the use amount of physical sunscreen agents such as zinc oxide, titanium dioxide and the like can be reduced by 40%-50%. And the sunscreen effect (SPF value) is improved by 40-60%, so that the use amount of the traditional sunscreen can be reduced by 30-50%. An in-vitro skin irritation test shows that the skin feeling is more fresh and cool, and the irritation is lower. The condensation compound is low in oil phase proportion (skin-friendly ester group structure), the greasy feeling of the formula can be reduced (the skin feeling score is improved from 3 scores to 8 scores and 10 scores), and the acne risk is avoided (the acne risk is evaluated to be grade 1).

Water treatment systems and methods are provided for monitoring and optimizing pre-treatment of water delivered to a water treatment sub-system. Monitoring modules and methods are provided, which receive measurements of pressure differences over filtration units, determine the type and extent of degradation of membranes and apply ultraviolet (UV) radiation if biological fouling is detected, to reduce application of chemicals. Purification systems and methods are provided for purifying solutions of lactic acid and / or lactate by UV radiation, to improve the quality of poly lactic acid (PLA) produced therefrom. The color of the solution is monitored to tune the wavelength and intensity of the applied UV.

The invention provides an enhanced BCIP / NBT chromogenic substrate. The chromogenic substrate comprises the following components: substrate components BCIP and NBT, an enhancer, a stabilizer, iodonitrotetrazole chloride, a buffer system with the pH value of 8.5-10.0, and metal ions, wherein the reinforcing agent is polyethylene glycol or dextran; the stabilizer is composed of homosalate and gelatin; the metal ions are magnesium ions and zinc ions. According to the chromogenic substrate provided by the invention, by introducing a specific enhancer and a stabilizer, the detection sensitivity is remarkably improved, the non-specific background is reduced, the chromogenic reaction speed is accelerated, a chromogenic product is more stable, and methods for detecting the activity of alkaline phosphatase, such as ELISA, ELISPOT, Western Blot and IHC, are universal and have very high commercial application value.

The invention belongs to the technical field of cosmetics, and provides an additive capable of increasing the sunscreen index, a sunscreen composition and application. The additive is prepared from the following components in parts by weight: 0.0001 to 1.9 parts of glucosyl hesperidin and 0.0001 to 5 parts of fructus forsythiae extract. The additive has a broad-spectrum effect of improving the sunscreen index of the sunscreen; the sun-screening agent can obviously improve the effects of physical sun-screening agents such as titanium dioxide and zinc oxide, and chemical sun-screening agents such as ethylhexyl methoxycinnamate, bis-ethylhexyloxyphenol methoxyphenyl triazine, diethylaminohydroxybenzoyl hexyl benzoate, butyl methoxydibenzoylmethane, beta-methoxycinnamate isoamyl ester, ethylhexyl salicylate and octocrylene. The additive has the sunscreen effect of mosalate and the like, or after the additive is used, the dosage is greatly reduced when the same sunscreen effect is achieved, and the problems of whitening, choking acnes, irritating sensitive skin and the like caused by too high dosage are avoided.