Amorepacific Corporation

Snu Rdb Foundation

Gae Won Nam

Ji Hyun Kim

Duck Hee Kim

Tae Ryong Lee

Ih Seop Chang

Jin Ho Chung

Kil Joong Kim

Jae Won You

Chan Woo Lee

Hyun Jung Choi

Hyeon Chung Kim

Eui Dong Son

Seon Pil Jin

Byoung Seok Lee

The present invention relates to a method for calculating a thermal protection factor, wherein the method comprises the steps of: applying heat to a first area coated with a thermal protection material, and a second area not coated with the thermal protection material; measuring the respective saturation temperatures of the first area and second area; calculating a first energy by dividing the energy corresponding to the heat applied to the first area by the saturation temperature of the first area; calculating a second energy by dividing the energy corresponding to the heat applied to the second area by the saturation temperature of the second area; and calculating the thermal protection factor of a thermal protection material by dividing the first energy by the second energy or dividing the difference between the first energy and the second energy by the first energy.

Method for calculating a thermal protection factor

Disclosed is a pentaerythritol derivative represented by the following Formula 1, which improves moisture retaining ability of the stratum corneum when applied to the skin, and shows especially high moisturizing ability even in dry conditions. wherein R is independently saturated or unsaturated C6-C18 alkyl group; m and n are the same or different integers of which m is 0 to 10 and n is 1 to 10.

Pentaerythritol derivatives

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Yongin-si, South Korea

Gae Won Nam