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公开(公告)号：US20230226660A1
公开(公告)日：2023-07-20
申请号：US17928617
申请日：2021-07-10
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Hyoung Jae KIM , Do Yeon KIM , Tae Kyung LEE
Abstract: Provided are a polishing pad including a porous protrusion pattern, a polishing device including the same, and a manufacturing method of a polishing pad. The polishing pad includes a support layer, and a pattern layer disposed directly on the support layer, the pattern layer comprising a protrusion pattern having a plurality of pores. The pores contribute to an increase in perimeter length of the protrusion pattern in plan view, and a perimeter length of a polishing surface formed by the protrusion pattern per unit area is in a range of 1.0 mm/mm2 to 50.0 mm/mm2.
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382.发明公开公开(公告)号：US20230146767A1
公开(公告)日：2023-05-11
申请号：US17884580
申请日：2022-08-10
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Hyun Aee CHUN , Sook Yeon PARK , Yun Ju KIM , Su Jin PARK
CPC classification number: C08L63/04 , C08G59/245 , C08G59/621 , C08G59/688 , C08G59/4085 , C08G59/5006
Abstract: The present disclosure relates to an epoxy resin of which distribution of molecular weight having distribution range of molecular weight of 300 to 2,000,000 is adjusted such that an upper limit value is increased to a maximum of 2,000,000, a method of preparing the same, a composition comprising the same, and a use thereof. The epoxy resin having controlled distribution of molecular weight of the present disclosure may have improved thermal properties of an epoxy system by expanding the distribution of molecular weight, and may exhibit excellent processability.
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公开(公告)号：US20230044868A1
公开(公告)日：2023-02-09
申请号：US17658080
申请日：2022-04-05
Applicant: CHANGWON NATIONAL UNIVERSITY INDUSTRY UNIVERSITY CORPORATION FOUNDATION , KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Hyun Uk Hong , Ji un Park , Byoung Soo Lee , Hae-Jin Lee
Abstract: This application relates to a nickel-based superalloy suitable for additive manufacturing and a method for manufacturing a high-temperature member using the same. The nickel-based superalloy includes 13.7% to 14.3% by weight of Cr, 9.0% to 10.0% by weight of Co, 3.7% to 4.3% by weight of Mo, 2.6% to 3.4% by weight of Ti, 3.7% to 4.3% by weight of W, 2.6% to 3.4% by weight of Al, 0.15% to 0.19% by weight of C, greater than 0% by weight and not less than 0.005% by weight of B, 0.01% to 0.05% by weight of Zr, 2.0% to 2.7% by weight of Ta, 0.6% to 1.1% by weight of Hf, Ni residue, and unavoidable impurities. The nickel-based superalloy has a high fraction of strengthening phase, thereby maintaining excellent high-temperature strength. Additive manufacturing with the nick-based superalloy is much easier than existing nickel-based superalloys, thereby cost-effectively providing maximized cooling efficiency.
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公开(公告)号：US20220410240A1
公开(公告)日：2022-12-29
申请号：US17787580
申请日：2020-05-12
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Sang Kon LEE , In Kyu LEE , Sung Yun LEE , Myeong Sik JEONG , Sun Kwang HWANG , Dong Yong PARK
Abstract: According to the present disclosure, a hot stamping forming method for forming components having various strength according to parts through cooling control for each position includes: setting a required strength for each product part for a sheet supplied into a multi-point forming mold device to which a plurality of forming modules are coupled; adjusting an arrangement of the plurality of forming modules according to the set required strength; and performing cooling control for each part by controlling an amount of cooling air or mist sprayed to the sheet by the air jet nozzle in order to achieve a required cooling speed for each strength part of the supplied sheet, wherein components having various shapes are formable with respect to the supplied sheet in a single mold.
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公开(公告)号：US11255025B2
公开(公告)日：2022-02-22
申请号：US16098442
申请日：2017-04-24
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Wan Gyu Hahm , In Woo Nam , Seung Jin Lee , Ki Sub Lim
Abstract: The present invention relates to a spinning nozzle apparatus for manufacturing a high-strength fiber.
The spinning nozzle apparatus for manufacturing a high-strength fiber according to the present invention is designed to optimize a heating method for the spinning region of a spinning nozzle in the melt spinning process. The heat transfer method is optimized by disposing the spinning nozzle holes of spinning nozzle commercially available on the outside of, directly under the pack body and heating the spinning nozzle holes with a heating body. In addition, an instantaneous heat treatment at high temperature is adopted to control the molecular entanglement structure in the melted polymer, which enhances the drawability of the thermoplastic resin and hence improves the mechanical properties such as strength and elongation.-
Patent Agency Ranking
公开(公告)号：US11214583B2
公开(公告)日：2022-01-04
申请号：US16619464
申请日：2017-06-05
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Hyun-Aee Chun , Yun-Ju Kim , Sook-Yeon Park , Su-Jin Park , Tae-Kwang Kim
IPC: C07F7/18 , C08G61/10 , C08L63/00 , C09D163/04 , C09J163/04 , C08K3/36
Abstract: The present invention relates to a novel compound having an alkoxysilyl group and an active ester group, a method for preparing the same, a composition comprising the same, and a use, wherein the novel compound exhibits improved low moisture absorption and/or low dielectric properties when cured as an epoxy composition, but is not accompanied by loss of thermal expansion characteristics. Disclosed are a novel compound of formulae AF to LF having an alkoxysilyl group and an active ester group, and a method for preparing the same, a composition comprising the same, and a use of same.
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公开(公告)号：US20210398745A1
公开(公告)日：2021-12-23
申请号：US17292280
申请日：2019-11-25
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Hyun Rok CHA , Myeong Hwan HWANG , Jong Ho HAN , Dong Hyun KIM , Gye Seong LEE
Abstract: The present invention relates to an apparatus and a method for manufacturing a soft magnetic composite using ultrasonic vibration and a soft magnetic composite manufactured using the ultrasonic vibration. More specifically, the present invention relates to the apparatus for manufacturing a soft magnetic composite using ultrasonic vibration including: a die that has a putting-in space as an open space in which a powder material is put; a punch set that is inserted into the putting-in space and presses the powder material; an ultrasonic vibration applying unit including ultrasonic vibrators which are arranged along a circumference of an outer die surface of the die and are provided to come into contact with the die; a main body that is positioned below the die and is formed to slide around the die toward an outer circumference; and a control unit that controls a frequency of the ultrasonic vibrators depending on a degree of pressure of the punch set, a method for manufacturing a soft magnetic composite using ultrasonic vibration, and a soft magnetic composite manufactured using the same.
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公开(公告)号：US11149332B2
公开(公告)日：2021-10-19
申请号：US15488454
申请日：2017-04-15
Inventor： Donald S. Shih , Paul N. Wilson , Shae-Kwang Kim , Bong-Hwan Kim , Young-Ok Yoon
Abstract: An aluminum alloy including aluminum, about 6 to about 17.4 weight percent by weight magnesium, and at least one of chromium up to about 0.2 percent by weight, zirconium up to about 0.2 percent by weight and manganese up to about 0.3 percent by weight.
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公开(公告)号：US11031624B2
公开(公告)日：2021-06-08
申请号：US16186625
申请日：2018-11-12
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Bong Sang Cho , Ki Young Kim , Jun Choi , Do Hyung Park , Jae Chui Lee , Ji San Jeong , Kyung Min Kim , Sin Seok Oh , Seong Kwan Kim , Yong Pyo Lee
IPC: H01M10/0565 , C08G77/54 , H01M10/0525 , C08G65/336
Abstract: Disclosed is a polyalkylene glycol (PAG) polymer having urethane bonds, represented by Structural Formula 1 below. The present invention further relates to a solid polymer electrolyte composition, composed of a polyalkylene glycol polymer having urethane bonds, and a lithium salt. The solid polymer electrolyte of the invention can exhibit superior compatibility, stability, flexibility, mechanical properties and ionic conductivity.
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390.发明申请公开(公告)号：US20210155733A1
公开(公告)日：2021-05-27
申请号：US17103479
申请日：2020-11-24
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Sung Woo HONG , Sung Koo LEE , Pyong Hwa HONG , Gyeong Min MOON , Jin Sil KIM
Abstract: The present disclosure relates to a composition for forming a polyurethane film, a polyurethane film derived from the composition and an article comprising a substrate and the polyurethane film, and the composition for forming a polyurethane film comprises an OH group-containing polymer; a curing agent; and an amphoteric ion-based polymer.
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