Abstract: Disclosed is a method of preparing a wet master batch elastomer composition, including: a first step of inputting silica particles and an organic silane coupling agent into a SSBR polymer solution; a second step of stirring the SSBR polymer solution containing the silica particles and the organic silane coupling agent to pulverize the silica particles while surface-modifying the silica particles with the organic silane coupling agent; a third step of removing a solvent from the SSBR polymer solution containing the surface-modified and pulverized silica particles, followed by drying and solidification to obtain a silica-SSBR composite; and a fourth step of compounding the silica-SSBR composite with one or more additives selected from the group consisting of silica particles, an organic silane coupling agent, a softener, a crosslinking activator, an antioxidant, a vulcanization accelerator, and a vulcanizing agent, wherein the wet master batch elastomer composition includes 8 to 20 parts by weight of the organi

Abstract: Disclosed is a method for preparing a wet master batch elastomer composition, comprising a first step of feeding silica particles and an organic silane coupling agent into an SSBR polymer solution; and a second step of grinding the silica particles, while stirring the SSBR polymer solution into which the silica particles and the organic silane coupling agent are fed, wherein a ratio of an average particle size of the ground silica particles to an average particle size of the silica particles is less than or equal to 0.8, and wherein the wet master batch elastomer composition has a bound rubber content of 30 to 80 wt. %.

Abstract: An embodiment of the present specification provides a method of preparing a copolymer, which includes steps of: (a) adding a polymerization initiator to a monomer mixture including an aromatic vinyl-based monomer, a first conjugated diene-based monomer, and a farnesene monomer to initiate a reaction; and (b) adding a second conjugated diene-based monomer.

Abstract: An embodiment of the present specification provides a method of preparing a copolymer, which includes steps of: (a) adding a polymerization initiator to a monomer mixture including an aromatic vinyl-based monomer, a first conjugated diene-based monomer, and a farnesene monomer to initiate a reaction; and (b) adding a second conjugated diene-based monomer.

Abstract: The present disclosure relates to an external-use skin preparation composition containing an extract of a fermented product of Red yeast rice. More particularly, it relates to an external-use skin preparation composition capable of providing excellent antioxidant and anti-aging effects by containing, as an active ingredient, an extract of a fermented product of Red yeast rice, which is obtained by further fermenting Red yeast rice, red rice fermented with Monascus purpureus, with yeast.

Abstract: Provided is a copolymer composed of an aromatic vinyl monomer, a conjugated diene monomer, and a functional monomer including two or more nitrogen atoms and a method of preparing the copolymer.

Abstract: The present invention relates to a composition comprising an araloside-based compound and, more particularly, to a composition for external application to skin, the composition comprising, as an active component, an araloside-based compound, including araloside X, araloside V and araloside VII. Thus, the composition restores skin markers damaged by external environmental stress, such as harmful substances or fine dusts, and reduces the expression of skin inflammatory factors to help the recovery of damaged skin, thereby providing effects, such as anti-oxidation, skin trouble suppression, anti-inflammation, or skin barrier improvement.

Abstract: The present disclosure relates to an external-use skin preparation composition containing an extract of a fermented product of Red yeast rice. More particularly, it relates to an external-use skin preparation composition capable of providing excellent antioxidant and anti-aging effects by containing, as an active ingredient, an extract of a fermented product of Red yeast rice, which is obtained by further fermenting Red yeast rice, red rice fermented withMonascus purpureus, with yeast.

Abstract: The present invention relates to a composition comprising an araloside-based compound and, more particularly, to a composition for external application to skin, the composition comprising, as an active component, an araloside-based compound, including araloside X, araloside V and araloside VII. Thus, the composition restores skin markers damaged by external environmental stress, such as harmful substances or fine dusts, and reduces the expression of skin inflammatory factors to help the recovery of damaged skin, thereby providing effects, such as anti-oxidation, skin trouble suppression, anti-inflammation, or skin barrier improvement.

Abstract: According to an embodiment of the present invention, there is provided a method of preparing a copolymer which includes (a) polymerizing an aromatic vinyl monomer and a conjugated diene-based monomer in the presence of a solvent, a first randomizing agent, and a catalyst to prepare a first copolymer including the aromatic vinyl monomer in an amount of 15 to 40 wt %; and (b) reacting the first copolymer with one or more of a second randomizing agent different from the first randomizing agent and an additional aromatic vinyl monomer to prepare a second copolymer.

Abstract: The present invention relates to a composition for improving scalp condition and/or promoting hair restoration containing soyasaponin or a derivative thereof, which can be widely used as an external skin preparation for improving scalp condition and/or promoting hair growth and hair restoration, a cosmetic composition or a pharmaceutical composition, as the composition has high stability for skin without side effects, improves a scalp condition, and is effective in promoting hair growth and/or preventing hair loss by activating stem cells.

Abstract: Provided is a copolymer composed of an aromatic vinyl monomer, a conjugated diene monomer, and a functional monomer including two or more nitrogen atoms and a method of preparing the copolymer.

Abstract: One aspect of the present invention provides an end-modified conjugated diene polymer represented by Formula 1 below: wherein p is a conjugated diene polymer chain; R1 to R7 are each independently C1-C20 saturated or unsaturated hydrocarbon chains; X is carbon (C), silicon (Si), or nitrogen (N); a is 1 or 2; and n is an integer of 1 to 200, and a method for preparing the same.

Abstract: According to an embodiment of the present invention, there is provided a method of preparing a copolymer which includes (a) polymerizing an aromatic vinyl monomer and a conjugated diene-based monomer in the presence of a solvent, a first randomizing agent, and a catalyst to prepare a first copolymer including the aromatic vinyl monomer in an amount of 15 to 40 wt %; and (b) reacting the first copolymer with one or more of a second randomizing agent different from the first randomizing agent and an additional aromatic vinyl monomer to prepare a second copolymer.

Abstract: The present invention relates to a composition for skin whitening containing soyasaponin or a derivative thereof, and more particularly, to a composition which is very safe to the skin with no side effects by using, as an active ingredient, a soyasaponin which can be extracted from a plant, exhibits a significantly excellent whitening effect by inhibiting skin pigmentation by inhibiting melanin production in the skin, reduces pigmentation symptoms such as melasma and freckles or improves skin dullness and enables an even and bright skin tone.

Abstract: The present invention relates to a composition for improving scalp condition and/or promoting hair restoration containing soyasaponin or a derivative thereof, which can be widely used as an external skin preparation for improving scalp condition and/or promoting hair growth and hair restoration, a cosmetic composition or a pharmaceutical composition, as the composition has high stability for skin without side effects, improves a scalp condition, and is effective in promoting hair growth and/or preventing hair loss by activating stem cells.

Abstract: The present specification discloses a composition for shrinking pores, inhibiting or improving wrinkles, promoting skin elasticity, regulating sebum, and preventing or improving acne skin, the composition containing, as an active ingredient, theasapogenol derivative 21-O-angeloyltheasapogenol E3 as one embodiment.

Abstract: One aspect of the present invention provides an end-modified conjugated diene polymer represented by Formula 1 below: wherein p is a conjugated diene polymer chain; R1 to R7 are each independently C1-C20 saturated or unsaturated hydrocarbon chains; X is carbon (C), silicon (Si), or nitrogen (N); a is 1 or 2; and n is an integer of 1 to 200, and a method for preparing the same.

Abstract: One aspect of the present invention provides an end-modified conjugated diene polymer represented by Formula 1 below: wherein p is a conjugated diene polymer chain; R1 to R7 are each independently C1-C20 saturated or unsaturated hydrocarbon chains; X is carbon (C), silicon (Si), or nitrogen (N); a is 1 or 2; and n is an integer of 1 to 200, and a method for preparing the same.

Abstract: The present invention relates to an alkylalkoxysilane compound of a novel structure which has an ether group and an dialkylamino group in an alkyl chain of the alkylalkoxysilane and thus has remarkably improved storage stability and hydrophilicity and a method for preparing same.