Abstract: The present invention relates to a naphthalimide sulfonate derivative, and a photoacid generator and a photoresist composition each comprising same and, more specifically, to a naphthalimide sulfonate derivative compound, and a photoacid generator and a photoresist composition each comprising same, wherein the compound has excellent absorbance for light of i-line (365 nm) wavelength, is greatly easy to prepare into a polymerizable composition due to very high solubility in an organic solvent, has good thermal stability, and shows a favorable acid generation rate.
Type:
Application
Filed:
December 28, 2021
Publication date:
March 14, 2024
Applicant:
SAMYANG CORPORATION
Inventors:
Chun Rim OH, Dae Hyuk CHOI, Yu Na CHOI, Deuk Rak LEE, Ji Eun CHOI, Ki Tae KANG, Min Jung KIM, Won Jung LEE, Chi Wan LEE
Abstract: The present invention relates to a saccharide syrup composition comprising an organic acid or its salt and an oligosaccharide, and more specifically, the saccharide syrup composition comprises allulose.
Abstract: The present invention relates to a newly isolated bacterium belonging to the genus Microbacterium, a composition for producing psicose comprising the strain, and a method for producing psicose using the same.
Type:
Grant
Filed:
December 26, 2017
Date of Patent:
January 2, 2024
Assignee:
SAMYANG CORPORATION
Inventors:
Bu-Soo Park, Eun Jin Han, Sang-Hee Lee, Soun Gyu Kwon, Jin Ha Kim, Chong Jin Park
Abstract: The present invention relates to a method of preparing an allulose with stability at high yield, by concentrating products obtained by separating a solution containing allulose of a functional sweetener with high purity, to reduce the content of impurities such as fructose and reducing sugars and increase the content of allulose.
Type:
Grant
Filed:
April 17, 2018
Date of Patent:
November 21, 2023
Assignee:
SAMYANG CORPORATION
Inventors:
Ji Won Park, Sung Won Park, Chong Jin Park
Abstract: The present invention relates to a method for the synthesis of 2,5-furandicarboxylic acid, and more specifically, the present invention relates to a more efficient and economical method capable of preparing 2,5-furandicarboxylic acid having various functions with high purity and high yield, even without using a transition metal catalyst.
Type:
Grant
Filed:
March 20, 2020
Date of Patent:
October 24, 2023
Assignees:
SAMYANG CORPORATION, RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
Inventors:
Chun Rim Oh, Deuk Rak Lee, Won Jung Lee, Chi Wan Lee, Ji Eun Choi, Young Sug Kim, Jung Woon Yang, Tae Woo Lee
Abstract: The present invention relates to a naphthalimide sulfonate derivative, and a photoacid generator and a photoresist composition which comprise same, and, more specifically, to a naphthalimide sulfonate derivative compound, and a photoacid generator and a photoresist composition which comprise same, the compound having an excellent absorbance of light with an i-line wavelength (365 nm), having a high solubility in an organic solvent, having excellent thermal stability, and exhibiting a good acid generation rate.
Type:
Application
Filed:
September 29, 2021
Publication date:
October 19, 2023
Applicant:
SAMYANG CORPORATION
Inventors:
Chun Rim OH, Dae Hyuk CHOI, Min Jung KIM, Deuk Rak LEE, Won Jung LEE, Yu Na CHOI, Ji Eun CHOI
Abstract: The present invention relates to a low-calorie beverage having excellent sensory properties and sweetness, and more particularly, to a beverage containing allulose as a sweetener.
Type:
Grant
Filed:
November 27, 2018
Date of Patent:
October 10, 2023
Assignee:
SAMYANG CORPORATION
Inventors:
Tae-Chul Han, Bong Chan Kim, Yong-In Kim, Il Seo, Seung Mi Lee, Su Youn Lim, Hye Jin Lim
Abstract: The present invention relates to functional saccharides having specific crystallinity, a method for preparing thereof, and a functional sweetener comprising the crystalline saccharides.
Type:
Grant
Filed:
February 12, 2018
Date of Patent:
October 3, 2023
Assignee:
SAMYANG CORPORATION
Inventors:
Go-Eun Kim, Ji Won Park, Sung Won Park, Kyung-Hun Ryu, Chong Jin Park
Abstract: The present invention relates to a polysiloxane-polycarbonate copolymer using a hydroxyl terminated polysiloxane mixture, and a method for producing same, and more specifically, to: a polysiloxane-polycarbonate copolymer which includes hydroxy-terminated polysiloxanes of chemical formulae 1 and 2 in a specific weight ratio as repeating units, and thus exhibits excellent transmittance and low-temperature impact strength compared to the case of using either of the hydroxy-terminated polysiloxanes by itself, and in which the overall production yield of the raw material polysiloxane is improved, such that the polysiloxane-polycarbonate copolymer is excellent in terms of economics; and a method for producing same.
Type:
Application
Filed:
April 22, 2021
Publication date:
September 21, 2023
Applicant:
SAMYANG CORPORATION
Inventors:
Yun Ju CHANG, Kyung Moo SHIN, Ki Tae KANG, Mi Ran KIM, Seung Pil JUNG, Jin Sik CHOI, Seong Hyen HEO
Abstract: The present invention pertains to: a polyol composition containing a polysaccharide alcohol, a polysaccharide alcohol-derived anhydrosugar alcohol, and an anhydrosugar alcohol polymer; and a polyurethane foam including same. More specifically, the present invention pertains to: a polyol composition containing a) a monoanhydrosugar alcohol, b) a dianhydrosugar alcohol, c) a polysaccharide alcohol, d) a polysaccharide alcohol-derived anhydrosugar alcohol, and e) at least one polymer of a) to d), wherein physical properties such as the number average molecular weight (Mn), polydispersity index (PDI), and average number of OH groups per molecule of the polyol composition satisfy certain levels, the polyol composition can contribute to the improvement of physical properties such as strength, elongation, and thermal insulation when used as a raw material for polyurethane, etc.
Abstract: The present invention relates to an alkylene-oxide-added polyol composition, a polyurethane using same, and a hot-melt adhesive comprising same, and, more specifically, to an alkylene oxide-added polyol composition, a polyurethane using same, and a hot-melt adhesive comprising same, the composition being prepared by performing, in a specific content ratio, an addition reaction between an alkylene oxide and an anhydrosugar alcohol composition comprising a) a monoanhydrosugar alcohol, b) a dianhydrosugar alcohol, c) a polysaccharide alcohol, d) an anhydrosugar alcohol derived from a polysaccharide alcohol, and e) a polymer of at least one of a) to d), and thus can increase the amount of bio components, improves adhesive strength, and enables a polyurethane to be prepared at a cost lower than that of when using petroleum polyols and other biopolyols.
Abstract: The present invention relates to a hydrophilic acrylic-modified polyurethane and a method for preparing same, and a water-based paint composition using same and a manufacturing method thereof and, more specifically, to a hydrophilic acrylic-modified polyurethane and a method for preparing same, and a water-based paint composition using same and a manufacturing method thereof, the hydrophilic acrylic-modified polyurethane comprising: a polymerization unit derived from an anhydrosugar alcohol-alkylene oxide adduct; a polymerization unit derived from polyisocyanate; and a polymerization unit derived from hydroxyalkyl (meth)acrylate, and capable of providing a water-based paint composition in which eco-friendliness, adhesiveness (adhesion), crack resistance and water resistance are all improved.
Type:
Application
Filed:
June 16, 2021
Publication date:
July 27, 2023
Applicant:
SAMYANG CORPORATION
Inventors:
Jae Hoon LEE, Seong Ye SEO, Hoon RYU, Jun Seop IM
Abstract: The present invention relates to chocolate containing allulose and a method of preparing thereof, and more specifically, provides a chocolate composition having reduction of saccharides added to chocolate, masking of bitter taste of chocolate and excellent emulsion stability, and a method of preparing thereof.
Type:
Grant
Filed:
October 31, 2017
Date of Patent:
May 23, 2023
Assignee:
SAMYANG CORPORATION
Inventors:
Il Seo, Bong Chan Kim, Yong-In Kim, Seung Mi Lee, Su Youn Lim, Hye Jin Lim, Tae-Chul Han, Jung Sook Han
Abstract: The present invention relates to a composition for forming an environmentally friendly polyurethane foam, the composition having improved storage stability, air permeability, and anti-oxidation characteristics and to a method for manufacturing a polyurethane foam and, more specifically, to an isocyanate pre-polymer prepared by reaction of a polyisocyanate and a polyol component comprising a bio-polyol, to a composition for forming an environmentally friendly polyurethane foam, the composition having improved storage stability, air permeability, and anti-oxidative characteristics by comprising the pre-polymer as one component, to a method for manufacturing a polyurethane foam using the same, and to an environmentally friendly polyurethane foam manufactured thereby.
Type:
Grant
Filed:
June 22, 2018
Date of Patent:
May 16, 2023
Assignee:
SAMYANG CORPORATION
Inventors:
Gwang Seok Song, Seung Hyun Yoo, Hoon Ryu, Hyuk Min Park, Jun Seop Im
Abstract: The present invention relates to a polybutylene terephthalate resin composition having excellent flame retardancy and hydrolysis resistance and a molded article produced therefrom and, more specifically, to a polybutylene terephthalate resin composition and a molded article produced therefrom, the polybutylene terephthalate resin composition having hydrolysis resistance and heat resistance that are improved by melt-processing a polybutylene terephthalate resin by using polycyclohexylenedimethylene terephthalate resin, and simultaneously having flame retardancy and impact resistance that are improved by using a phosphorus-based flame retardant and a compatibilizer.
Type:
Application
Filed:
March 5, 2020
Publication date:
April 6, 2023
Applicant:
SAMYANG CORPORATION
Inventors:
Yong Jei SOHN, Tae Geon KIM, Sang Hyun PARK, Oh Gun SON, Seok Bin OH, Chul Jin JO
Abstract: Disclosed are a composition for a radar penetration cover of a vehicle which may improve dielectric properties while maintaining excellent mechanical physical properties, and the radar penetration cover including the same. The composition for a radar penetration cover includes: an amount of about 60 to 70 wt % of polybutylene terephthalate (PBT), an amount of about 10 to 20 wt % of polycarbonate (PC), and an amount of about 11.5 to 27.8 wt % of an additive including polypropylene (PP) having maleic anhydride (MAH) grafted to an end group and a glass fiber (GF), wt % based on the total weight of the composition.
Type:
Grant
Filed:
September 22, 2020
Date of Patent:
February 14, 2023
Assignees:
Hyundai Motor Company, Kia Motors Corporation, Samyang Corporation
Inventors:
Byung Kyu Cho, Seung Chan Hong, Ho Bin Shon, Ki Yong Kim, Nung Hyun Kim
Abstract: Polycarbonate block copolymers are provided, which have: (A) a polyester block of chemical formula 1; and (B) a polycarbonate block derived from a dihydric phenol of chemical formula 3 compound and phosgene. The copolymers may be prepared by (1) polymerizing ester oligomers to form a compound of chemical formula 1; and (2) copolymerizing the ester oligomer obtained in (1) with a polycarbonate oligomer prepared from a dihydric phenol compound of chemical formula 3 and phosgene, in the presence of a polymerization catalyst. The block copolymer may have a viscosity average molecular weight (Mv) of 10,000 to 200,000.
Type:
Application
Filed:
August 17, 2022
Publication date:
January 5, 2023
Applicant:
SAMYANG CORPORATION
Inventors:
Kyung Moo SHIN, Jin Sik CHOI, Young Do KWON
Abstract: The present invention relates to a polycarbonate composite, a producing method thereof, and a molded article comprising same. More specifically, the present invention relates to: a polycarbonate composite comprising a matrix resin, which is a polycarbonate resin in which an anhydrosugar alcohol is copolymerized, and a nanomaterial dispersed in the matrix resin, wherein the polycarbonate composite exhibits a more remarkably improved tensile modulus and tensile strength than a conventional biopolycarbonate resin composite, by using, as a diol component, a solid dispersion or molten dispersion obtained by introducing a nanomaterial (dispersible substance) into an anhydrosugar alcohol (dispersion medium) in the form of an aqueous dispersion at the time of manufacture, and has uniform physical properties as the nanomaterial is uniformly dispersed in the composite; a producing method thereof; and a molded article comprising same.
Abstract: The present invention relates to a polyester resin including a diester compound and anhydrosugar alcohol, and a method for preparing same. The polyester resin has excellent heat resistance and mechanical properties and also has excellent biodegradability, as specific amounts of diester components including a succinic acid diester compound and diol components including anhydrosugar alcohol are copolymerized.
Abstract: Disclosed are: a thermoplastic elastomer resin composition comprising a thermoplastic elastomer resin and, as a reactive additive, a compound containing one or more isocyanurate functional groups; a molded product comprising the same.
Type:
Grant
Filed:
December 27, 2018
Date of Patent:
September 27, 2022
Assignee:
SAMYANG CORPORATION
Inventors:
Jae-Kwan Kwon, Jin Yoo, Cheol-Han Lee, Yong-Chan Lim, Sang-Hyun Park