Abstract: The present invention relates to the novel strain Pholiota adiposa SKU714, a method for producing cellulase from the strain and a method for saccharifying cellulose using the produced cellulase. Since the cellulase produced by the novel strain according to the present invention exhibits better saccharification yield than the existing saccharification enzymes, it can be used in various applications, including bioenergy production, textile industry, papermaking industry, detergent industry, feed industry, food industry, production of low-calorie foods, fermentation of food wastes, or the like.
Type:
Grant
Filed:
April 10, 2017
Date of Patent:
February 5, 2019
Assignee:
SK CHEMICALS CO., LTD.
Inventors:
Jung Kul Lee, Tae Su Kim, Sujit Sadashiv Jagtap, Min Ho Cha, Jong In Lee, Hang Duk Roh
Abstract: The present invention relates to a polyarylene sulfide resin composition which has excellent processability and exhibit excellent physical properties due to its more improved compatibility with other polymer materials or fillers, and a molded article including the same. Such polyarylene sulfide resin composition comprises: a polyarylene sulfide including a disulfide repeating unit in the repeating units of the main chain, wherein at least part of end groups of the main chain is hydroxyl group (—OH); and one or more components selected from the group consisting of a thermoplastic resin, a thermoplastic elastomer and a filler.
Abstract: Disclosed is a resin composition for forming a steering wheel remote control bezel. The resin composition comprises: an amount of about 40 to 50 wt % of a polyester copolymer including a dicarboxylic acid component residue including terephthalic acid and a diol component residue including dianhydrohexitol; an amount of about 10 to 20 wt % of at least one copolymer selected from a group consisting of unsaturated nitrile-diene-based rubber-aromatic vinyl grafted copolymers and alkylmethacrylate-diene-based rubber-aromatic vinyl grafted copolymers; and an amount of about 40 to 50 wt % of polycarbonate. Further, an amount of 0.1 to 0.5 parts by weight of a phosphate base antioxidant-based on 100 parts by weight of the resin composition is further added to the resin composition.
Type:
Grant
Filed:
February 6, 2015
Date of Patent:
November 27, 2018
Assignees:
SK Chemicals Co., Ltd., Hyundai Motor Company, Kia Motors Corporation
Inventors:
Dong-Cheol Sohn, Jong Ryang Kim, Tae-Woong Lee, Jong-Wook Shin, Han Ki Lee, Kyeong Hoon Jang, Dae Sik Kim, Myoung Ryoul Lee, Hak Soo Kim, Jung Gyun Noh
Abstract: This invention relates to a compound for an organic electroluminescent device and to an organic electroluminescent device including the same. This compound for an organic electroluminescent device has high thermal stability, high triplet energy and high hole transport capability, and the organic electroluminescent device including the same is improved in thermal stability and light emission efficiency. When this compound is used as a hole transport layer material, a triplet exciton of a phosphorescent light emitting material is confined, thus improving efficiency of the organic electroluminescent device.
Type:
Grant
Filed:
June 17, 2014
Date of Patent:
November 27, 2018
Assignee:
SK CHEMICALS CO., LTD.
Inventors:
Ju-Sik Kang, Jeong Ho Park, Suk Woon Jun, Yong-Jun Shin, Yu-Mi Chang, Nam-Choul Yang, Jae-Kyun Park, Song Lee
Abstract: The present invention relates to a polymer resin composition including: one or more copolymers selected from the group consisting of an unsaturated nitrile-diene-based rubber-aromatic vinyl graft copolymer, an alkyl methacrylate-diene-based rubber-aromatic vinyl graft copolymer, and an alkyl methacrylate-silicone/alkyl acrylate graft copolymer; a polyester resin; a polycarbonate resin; and a block copolymer including two or more alkylene-based repeating units having 2 to 10 carbon atoms and an aromatic vinyl-based repeating unit, and a molded article thereof. According to the present invention, a polymer resin composition providing an environment-friendly biomass-containing synthetic resin representing improved chemical resistance, and a polymer resin molded article obtained using the same may be provided.
Abstract: The present invention relates to parts for automobiles, electrical/electronic devices, home appliances, office equipment, or daily necessities, which are manufactured by using a polymer resin composition that is capable of providing an environmentally friendly biomass-containing synthetic resin having improved chemical resistance.
Abstract: The present invention relates to a polylactic acid resin composition which has a low glass transition temperature, fusion temperature, and enthalpy of fusion, can be crystallized under commercially meaningful processing conditions, has good film processability such as extrusion properties, has excellent storage stability, and is highly biodegradable. The polylactic acid resin composition comprises a block copolymer comprising a hard segment and a soft segment, the hard segment comprising polylactic acid repeat units, and the soft segment comprising polyurethane polyol repeat units which have polyether-based polyol repeat units linearly connected via a urethane bond, wherein the soft segment is contained by 5% to 35% by weight based on the weight of the block copolymer, and the polylactic acid repeat units include poly(L-lactic acid) repeat units and poly(D-lactic acid) repeat units by a molar ratio of 94:6 to 88:12.
Type:
Grant
Filed:
June 1, 2015
Date of Patent:
October 2, 2018
Assignee:
SK CHEMICALS CO., LTD.
Inventors:
Jae-il Chung, Tae-young Kim, Sung-wan Jeon, Min-young Kim
Abstract: The present invention relates to a polycyclohexylenedimethylene terephthalate (PCT) resin having enhanced crystallization speed and a method for preparing same. A PCT resin, according to an embodiment of the present invention, comprises: a reactant of (A) a dicarboxylic acid compound or a dicarboxylic acid ester compound and (B) a diol compound total of which 90 mol % or more is cyclohexanedimethanol; and 10-1000 ppm of antimony (Sb) atoms on the basis of the total weight of the resin, wherein the differential between the melting point (Tm) and a reduced crystallization temperature (Tmc) is 45° C. or lower. A PCT resin, according to the present invention, has high crystallization speed and thus enables fast production of various molded products. In particular, the PCT resin has high crystallization temperature and high heat resistance and thus enables fast production of a high-quality heat-resistant molded product by means of injection molding.
Type:
Grant
Filed:
October 23, 2015
Date of Patent:
September 11, 2018
Assignee:
SK Chemicals Co., Ltd.
Inventors:
Jung-Me Moon, Tae-Young Kim, Su-Min Lee
Abstract: The present invention relates to a composition and health functional food for inhibiting apoptosis of cranial nerve cells, and to a method for inhibiting apoptosis, wherein the composition and health functional food comprising a phosphodiesterase type 5 active inhibitor. According to the present invention, the PDE5 inhibitor exhibits a protective effect on nerve cells by inhibiting apoptosis of cranial nerve cells. Thus, the present invention can be effectively used to prevent, alleviate, and treat cranial nerve disease.
Type:
Grant
Filed:
July 28, 2017
Date of Patent:
September 4, 2018
Assignees:
ARIBIO CO., LTD., SK CHEMICALS CO., LTD.
Inventors:
Myung Hwa Kim, Jae Jun Choung, Sae Kwang Ku
Abstract: Provided is an immunogenic composition comprising 15 different polysaccharide-protein conjugates. Each of the conjugates comprises a capsular polysaccharide prepared from different serotype Streptococcus pneumoniae conjugated to a carrier protein, that is, serotypes 1, 2, 3, 4, 5, 6A, 6B, 7F, 9N, 9V, 14, 18C, 19A, 19F and 23F. An immunogenic composition formulated into a vaccine comprising an aluminum-based adjuvant increases application range with respect to pneumococcal diseases in infants and children.
Type:
Grant
Filed:
May 2, 2017
Date of Patent:
August 28, 2018
Assignee:
SK CHEMICALS CO., LTD.
Inventors:
Jin-Hwan Shin, Ji-Hye Yang, Dong-Soo Ham, Mahn-Hoon Park, Hun Kim, Myeong-Ju Noh, Su-Jin Park, Seon-Young Yang
Abstract: The present invention relates to a method for preparing a tris(trialkylsilyl)phosphine in high yield and high purity with safety and no risk of fire or explosion.
Type:
Grant
Filed:
November 6, 2015
Date of Patent:
August 7, 2018
Assignee:
SK CHEMICALS CO., LTD.
Inventors:
Yong-Jun Shin, Suk Woon Jun, Jeong Ho Park
Abstract: Provided is an immunogenic composition comprising 15 different polysaccharide-protein conjugates. Each of the conjugates comprises a capsular polysaccharide prepared from different serotype Streptococcus pneumoniae conjugated to a carrier protein, that is, serotypes 1, 2, 3, 4, 5, 6A, 6B, 7F, 9N, 9V, 14, 18C, 19A, 19F and 23F. An immunogenic composition formulated into a vaccine comprising an aluminum-based adjuvant increases application range with respect to pneumococcal diseases in infants and children.
Type:
Grant
Filed:
June 19, 2013
Date of Patent:
July 31, 2018
Assignee:
SK CHEMICALS CO., LTD.
Inventors:
Jin-Hwan Shin, Ji-Hye Yang, Dong-Soo Ham, Mahn-Hoon Park, Hun Kim, Myeong-Ju Noh, Su-Jin Park, Seon-Young Yang
Abstract: Provided is an immunogenic composition comprising 13 different polysaccharide-protein conjugates. Each of the conjugates comprises a capsular polysaccharide prepared from a different serotype Streptococcus pneumoniae conjugated to a carrier protein, that is, 12 serotypes selected from the group consisting of 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F and 23F and serotype 2 or 9N. The immunogenic composition formulated into a vaccine comprising an aluminum-based adjuvant increases coverage with respect to pneumococcal diseases in infants and children.
Type:
Grant
Filed:
December 5, 2013
Date of Patent:
May 29, 2018
Assignee:
SK Chemical Co., Ltd.
Inventors:
Mahn-Hoon Park, Hun Kim, Ji-Hye Yang, Seon-Young Yang, Myeong-Ju Noh, Su-Jin Park, Jin-Hwan Shin
Abstract: Disclosed is a bio-based polycarbonate ester comprising: (i) repeat unit 1 obtained from a condensation reaction of 1,4:3,6-dianhydrohexitol and carbonate; and (ii) repeat unit 2 obtained from a condensation reaction of 1,4:3,6-dianhydrohexitol and 1,4-cyclohexanedicarboxylate; and a preparation method for the bio-based polycarbonate ester, comprising the steps of: (1) preparing a compound 1,4-diphenyl-cyclohexanedicarboxylate through a trans-esterification or esterification reaction of a compound represented by and phenol; and (2) preparing a compound comprising a repeat unit represented by through a polycarbonate melt polycondensation reaction of the 1,4-diphenyl-cyclohexanedicarboxylate prepared in step (1), a compound represented by
Abstract: Provided are a water-dispersible polyester resin having improved water resistance and chemical resistance, a water-dispersion emulsion containing the resin, and a method for preparing the resin. It is possible to minimize the use of organic solvents to be added to a water-dispersible polyester resin to thereby reduce hazard to a human body, does not create odor by excluding a use of amines, and can prepare a water-dispersion emulsion having excellent coating, adhesive property, and water-dispersion stability without using emulsifiers such as surfactants.
Abstract: Disclosed is a bio-based polycarbonate ester comprising: (i) repeat unit 1 obtained from a condensation reaction of 1,4:3,6-dianhydrohexitol and carbonate; and (ii) repeat unit 2 obtained from a condensation reaction of 1,4:3,6-dianhydrohexitol and 1,4-cyclohexanedicarboxylate; and a preparation method for the bio-based polycarbonate ester, comprising the steps of: (1) preparing a compound 1,4-diphenyl-cyclohexanedicarboxylate through a trans-esterification or esterification reaction of a compound represented by formula 2 and phenol; and (2) preparing a compound comprising a repeat unit represented by formula 1 through a polycarbonate melt polycondensation reaction of the 1,4-diphenyl-cyclohexanedicarboxylate prepared in step (1), a compound represented by formula 4 and 1,4:3,6-dianhydrohexitol.
Abstract: Disclosed is a method for preparing fatty acid alkyl ester for bio-diesel fuels by reacting a raw material containing fat with water to prepare fatty acid, and then reacting the prepared fatty acid with alcohol. The method for preparing fatty acid alkyl ester for bio-diesel fuels includes the steps of: preparing fatty acid and glycerin by an hydrolysis reaction of a raw material containing fat and water at the temperature of 200 to 280° C. and the pressure of 30 to 80 bar; carrying out a phase separation of the fatty acid and the glycerin; and carrying out an esterification reaction of the separated fatty acid and alcohol at the temperature of 200 to 350° C. and the pressure of atmospheric pressure to 35 bar.
Abstract: Disclosed is a method for producing proteins having factor VIII procoagulant activity in serum-free medium by in vitro culturing of mammalian cells, wherein the serum-free medium contains an inhibitor against the protease released from cultured cells. In accordance with this invention, the inhibitor can protect the cleavage of a target protein during cultivation and increase homogeneity of a target molecule, wherein the inhibitor can be a dextran sulfate. This invention also relates to a method of purifying target molecules from the culture medium containing both a target molecule and selected inhibitors by affinity chromatography.
Type:
Grant
Filed:
August 12, 2016
Date of Patent:
March 27, 2018
Assignee:
SK CHEMICALS CO., LTD.
Inventors:
In-Young Song, Hun-Taek Kim, Jong-Wan Kim, Yong-Kook Kim, Jong-Il Ryu, Dae-Kee Kim
Abstract: This invention relates to a compound for an organic electroluminescent device and to an organic electroluminescent device including the same. This compound for an organic electroluminescent device including the same is improved in thermal stability and light emission efficiency. When this compound is used as a hole transport layer material, a triplet energy of a phosphorescent light emitting material is increased, thus improving the efficiency of the organic electroluminescent device.
Type:
Grant
Filed:
October 4, 2013
Date of Patent:
March 13, 2018
Assignee:
SK CHEMICALS CO., LTD.
Inventors:
Ju-Sik Kang, Jeong Ho Park, Suk Woon Jun, Yong-Jun Shin, Yu-Mi Chang, Nam-Choul Yang, Jae-Kyun Park, Song Lee
Abstract: A method for preparing a transdermal absorption composition includes mixing rotigotine and an antioxidant at a weight ratio of 1:0.0001 to 0.1. A transdermal therapeutic system includes a substrate and a drug-containing adhesive layer disposed on the substrate and including an antioxidant at a weight ratio of 1:0.0001 to 0.1. The method and system of the present invention suppress the crystallization of rotigotine as well as the generation of related substances, thereby increasing the long-term storage stability of a therapeutic product containing rotigotine or related substances.