摘要:
The present invention relates to a method of preparing an ethylene-α-olefin-diene copolymer and an ethylene-α-olefin-diene copolymer prepared thereby, by using a transition metal compound based on a cyclopenta[b]fluorenyl group as a catalyst.
摘要:
The present invention relates to a method of preparing an ethylene-α-olefin-diene copolymer and an ethylene-α-olefin-diene copolymer prepared thereby, by using a transition metal compound based on a cyclopenta[b]fluorenyl group as a catalyst.
摘要:
The present invention relates to a new transition metal compound based on cyclopenta[b]fluorenyl group, a transition metal catalyst composition containing the same and having high catalytic activity for preparing an ethylene homopolymer or a copolymer of ethylene and one α-olefin, a method of preparing an ethylene homopolymer or a copolymer of ethylene and α-olefin using the same, and the prepared ethylene homopolymer or the copolymer of ethylene and α-olefin.
摘要:
The present invention relates to a new transition metal compound based on cyclopenta[b]fluorenyl group, a transition metal catalyst composition containing the same and having high catalytic activity for preparing an ethylene homopolymer or a copolymer of ethylene and one α-olefin, a method of preparing an ethylene homopolymer or a copolymer of ethylene and α-olefin using the same, and the prepared ethylene homopolymer or the copolymer of ethylene and α-olefin.
摘要:
Provided are: a multi-layered lamellar granule comprising a nucleating agent, a ceramide-containing artificial stratum corneum lipid lamellar layer which encases the nucleating agent and a polymer layer disposed on the artificial stratum corneum lipid lamellar layer; and an external skin application composition comprising the same. The external skin application composition shows improved moisturizing and barrier repair capabilities when applied to the skin, which can be advantageously used in cosmetics and pharmaceuticals.
摘要:
The present invention relates to a novel use of lignan compounds, which are isolated and purified from nutmeg or the aril of nutmeg for anti-wrinkle, and more particularly, the present invention relates to a novel use for anti-wrinkle of an extract of the nutmeg or an extract of the aril of the nutmeg, fragrin A, austobailignan 7, licarin E, and macelignan. The extracts and lignan compounds of the present invention have activities in suppressing collagen degradation enzyme-1 (MMP-I, matrix metalloprotei-nase-1) and formation of new collagen (type-1 procollagen), thereby having effect on inhibitng wrinkle caused by photoaging. Accordingly, the extracts and lignan compounds of the present invention may be useful for preventing or treating wrinkle caused by photoaging.
摘要:
The backlight unit may include a plurality of optical assemblies, which each include a light emitting module having a substrate, a plurality of light emitting devices on a top surface of the substrate, and a connector provided on a bottom surface of the substrate and electrically connected to a power supply unit. The optical assembly may also include a light guide plate including a first part through which the light is received and a second part to output the light, which is laterally received from the first part, through a top surface thereof. A first side cover may be provided over the light emitting module and the first part of the light guide plate. A second side cover may be formed under the light emitting module and the light guide plate, the second side cover having a plurality of connector holes. The connector may be provided in one of the connector holes.
摘要:
The present invention relates to a message service method and a message service system. The message service method receives a message and a message transmission request from an open service application user and transmits the message to an appropriate transmission infrastructure such that the message arrives at a destination terminal. To achieve this, the message service system includes an open service application server which sends the message and the message transmission request, an open service gateway which reconstructs the message as one of a short message, a WAP Push message and a multimedia message through message analysis, and transmission infrastructures which transmits messages.
摘要:
The present invention relates to a microorganisms of the genus Corynebacterium producing 5′-inosinic acid, in which the expression of genes encoding purine biosynthesis related enzymes is increased higher than the intrinsic expression, and to a method for producing 5′-inosinic acid, comprising culturing the microorganisms of the genus Corynebacterium with improved 5′-inosinic acid productivity.
摘要:
The present invention relates to a melanin production inhibitor containing, as active ingredients, tranexamic acid and nicotinic acid amide, which inhibits the formation of skin melanocytes, and to a cosmetic composition which contains the melanin production inhibitor as an active ingredient and has the effects of reducing liver spots, blemishes, freckles and post-inflammatory hyperpigmentation, improving skin tone and texture and whitening the skin.