128 patents
Utility
Modified Polyphenylene Oxide Resin Composition
18 Jan 24
In an embodiment, a polyphenylene oxide resin composition includes 24% by weight to 52% by weight of polyphenylene oxide (PPO), 13% by weight to 39% by weight of high Impact polystyrene (HIPS), 20% by weight to 25% by weight of inorganic filler, 5% by weight to 10% by weight of inorganic reinforcing material and 5% by weight to 10% by weight of impact modifier.
Jae Hwan Ha, Si Yeol Yang, Young Rock Kwon, Nung Hyun Kim, Sang Hyun Park
Filed: 10 Mar 23
Utility
Oligosaccharide syrup having improved stability
16 Jan 24
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.
Kyung Ho Joo, Kwang Soo Kim
Filed: 4 Nov 21
Utility
Strain in
2 Jan 24
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.
Bu-Soo Park, Eun Jin Han, Sang-Hee Lee, Soun Gyu Kwon, Jin Ha Kim, Chong Jin Park
Filed: 26 Dec 17
Utility
Mucoadhesive pharmaceutical composition and preparation method therefor
12 Dec 23
Disclosed is a mucoadhesive pharmaceutical composition comprising a poly-ionic complex of chitosan and a polyacrylic acid polymer.
Sang Yeob Park, Jong Won Yoon
Filed: 29 Jul 21
Utility
Functional Crystalline Sweetener
7 Dec 23
The present invention relates to functional saccharides having specific crystallinity, a method for preparing thereof, and a functional sweetener comprising the crystalline saccharides.
Go-Eun KIM, Ji Won PARK, Sung Won PARK, Kyung-Hun RYU, Chong Jin PARK
Filed: 22 Aug 23
Utility
Allulose Syrup and Method for Manufacturing Same
7 Dec 23
The present invention relates to an allulose syrup and method of preparing the same, and more specifically, an allulose syrup with proper viscosity ranges, including viscosity-regulating agent and a dispersant and method of preparing the same.
Kyung Ho JOO, Kwang Soo KIM
Filed: 11 Aug 23
Utility
Telephoto lens optical system with large aperture and inner-focus type
28 Nov 23
A lens optical system includes a first lens group in which a first lens of an object side is composed of a meniscus lens having a positive refractive power, and having a positive refractive power as a whole, a second lens group arranged closer to an image side I than the first lens group, the second lens group being a focusing group for correcting a change in image distance depending on a change in object distance, being composed of a single lens, and having a negative refractive power as a whole, and a third lens group arranged closer to the image side I than the second lens group, the third lens group including a plurality of lenses and having a positive refractive power as a whole.
Moon Kyung Kim
Filed: 30 Jun 21
Utility
Camera Lens Assembly Having User-designated Functions
23 Nov 23
Provided are a camera lens assembly capable of communicating with a camera body and having a controller and a memory therein.
Hyun Hee LEE, Ji Hoon LEE
Filed: 24 Mar 20
Utility
Method for producing sweetener allulose
21 Nov 23
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.
Ji Won Park, Sung Won Park, Chong Jin Park
Filed: 17 Apr 18
Utility
Method for the synthesis of 2,5-furandicarboxylic acid
24 Oct 23
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.
Chun Rim Oh, Deuk Rak Lee, Won Jung Lee, Chi Wan Lee, Ji Eun Choi, Young Sug Kim, Jung Woon Yang, Tae Woo Lee
Filed: 20 Mar 20
Utility
Novel Naphthalimide Sulfonate Derivative, and Photoacid Generator and Photoresist Composition Which Comprise Same
19 Oct 23
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.
Chun Rim OH, Dae Hyuk CHOI, Min Jung KIM, Deuk Rak LEE, Won Jung LEE, Yu Na CHOI, Ji Eun CHOI
Filed: 29 Sep 21
Utility
Low-caloric beverage
10 Oct 23
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.
Tae-Chul Han, Bong Chan Kim, Yong-In Kim, Il Seo, Seung Mi Lee, Su Youn Lim, Hye Jin Lim
Filed: 27 Nov 18
Utility
Functional crystalline sweetener
3 Oct 23
The present invention relates to functional saccharides having specific crystallinity, a method for preparing thereof, and a functional sweetener comprising the crystalline saccharides.
Go-Eun Kim, Ji Won Park, Sung Won Park, Kyung-Hun Ryu, Chong Jin Park
Filed: 12 Feb 18
Design
Interchangeable lens for camera
3 Oct 23
Byung Wook Chin, Soo Won Yoon
Filed: 7 Oct 21
Utility
Composition for Hydrogel Formation, Hydrogel Formed by Photo-crosslinking Same, and Method for Preparing Hydrogel
21 Sep 23
The present invention relates to a composition for hydrogel formation, a hydrogel formed by photo-crosslinking same, and a method for preparing the hydrogel and, more specifically, to a composition which comprises a photo-initiator and a polyglutamic acid polymer having a photo-crosslinkable functional group introduced thereto and is capable of forming a hydrogel in real time through photo-crosslinking, to a hydrogel which is formed by photo-crosslinking the composition and can be utilized as a tissue adhesive, a surgical sealant, anti-adhesive agent, or the like due to excellent biocompatibility, superior adhesive strength in wet environments, flexibility, and ease of use, and to a method for preparing the hydrogel.
Ji Hyun CHANG, Hyung Hwan KIM, Hye Sung YOON
Filed: 5 Aug 21
Utility
Polysiloxane-polycarbonate Copolymer Using Hydroxy-terminated Polysiloxane Mixture, and Method for Producing Same
21 Sep 23
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.
Yun Ju CHANG, Kyung Moo SHIN, Ki Tae KANG, Mi Ran KIM, Seung Pil JUNG, Jin Sik CHOI, Seong Hyen HEO
Filed: 22 Apr 21
Utility
Polyol Composition Using Glucose-containing Saccharide Composition, and Polyurethane Foam Including Same
10 Aug 23
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.
Jun Seop IM, Hoon RYU
Filed: 5 Jul 21
Utility
Alkylene-oxide-added Polyol Composition, Polyurethane Using Same, and Hot-melt Adhesive Comprising Same
10 Aug 23
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.
Gwang Seok SONG, Hoon RYU, Jae Guk NOH, Seung Hyun YOO, Min Jung CHANG
Filed: 7 Jul 21
Utility
Hydrophilic Acrylic-modified Polyurethane and Method for Preparing Same, and Water-based Paint Composition Prepared Therefrom and Manufacturing Method Thereof
27 Jul 23
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.
Jae Hoon LEE, Seong Ye SEO, Hoon RYU, Jun Seop IM
Filed: 16 Jun 21
Utility
Thermoplastic Resin Composition for Low Gloss Non-painting, Method for Manufacturing Molded Article Using Same, and Molded Article
6 Jul 23
Provided herein are a thermoplastic resin composition for a low gloss non-painting, a method for manufacturing a molded article using the same, and a molded article.
Kyeong Hoon Jang, In Soo Han, Seul Yi, Do Young Bae, Suk Woo Kang, Tae Jin An, Jung Kyu Han
Filed: 22 Dec 22