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公开(公告)号：US20240192621A1
公开(公告)日：2024-06-13
申请号：US18551358
申请日：2022-05-18
发明人： Dae Woong Choi , Ji Soo Lee
CPC分类号： G03G9/09385 , G03G9/09307 , G03G9/09708
摘要： A toner external additive composition of the present invention comprises, as a core component, tin oxide, to be usable as an alternative material for conventional titanium dioxide (TiO2), and thus can respond to future regulations on titanium dioxide and environment. In addition, the toner external additive composition and a toner composition comprising same comprise, as a shell component, a silane-based compound and aluminum hydroxide to reduce triboelectric charge so that a ghost phenomenon is alleviated and increase image density so that print quality is improved. Particularly, if aluminum hydroxide is used in a specific amount range, a print quality improvement effect can be further improved.
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公开(公告)号：US20180325244A1
公开(公告)日：2018-11-15
申请号：US15773761
申请日：2016-10-27
发明人： Ji Seon Jeong , Ju Hee Shin , Sung Hwan Bang , Ju Young Jung , Kil Seuk Byun , Kyong Min Lee
CPC分类号： A45D44/002 , A45D37/00 , A45D44/22 , A45D2200/1027 , A45D2200/1036 , A61K8/0212 , A61K8/731 , A61K9/0014 , A61K9/7007 , A61K9/7046 , A61L15/28 , A61L15/60 , A61L26/0023 , A61L26/008 , A61Q19/00 , C08J3/075 , C08J5/18 , C08J2301/28 , C08L1/26
摘要： The present invention relates to a method of preparing a dry hydrogel sheet including the steps of: preparing a cellulose ether dispersion solution; transferring the dispersion solution to a coater while maintaining the temperature of the dispersion solution in the range of a gelation temperature of the dispersion solution to a boiling point of a dispersion medium; applying the dispersion solution transferred to the coater as a sheet; preparing a hydrogel sheet by cooling the applied dispersion solution to induce gelation; and drying the hydrogel sheet. Since the dry hydrogel sheet prepared by the method has a low moisture content, it is possible to ensure the stability of active ingredients, quantify functional components to be applied to the dry hydrogel sheet, and ensure the uniformity of the surface appearance and thickness of the dry hydrogel sheet, which results in the improvement of the quality of a final product.
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公开(公告)号：US09637589B2
公开(公告)日：2017-05-02
申请号：US14423641
申请日：2013-05-20
发明人： Gyung Don Kang , Ki Chull Yun , Sang Yob Kim , Kil Seuk Byun , Jung Ryum , Boo Seong Kim , Sei Hoon Kim , Sung Bae Park
IPC分类号： C08G64/00 , C08G63/78 , C08G63/181 , C08G63/02
CPC分类号： C08G63/78 , C08G63/181 , C08G2230/00
摘要： Provided is a method of continuous preparation of a biodegradable aliphatic/aromatic polyester copolymer, the method including: performing a first esterification reaction of an aliphatic dihydroxy compound and an aliphatic dicarboxylic acid at a temperature of 185° C. or less; continuously performing a second esterification reaction of a reaction product obtained by the first esterification reaction; obtaining a pre-polymer by continuously performing a first polycondensation reaction of a reaction product obtained by the second esterification reaction; and continuously performing polycondensation reaction of the pre-polymer, wherein an aromatic carboxylic acid is added to a reactor in which the first esterification reaction or the second esterification reaction is performed, to prepare the biodegradable aliphatic/aromatic polyester copolymer. According to the method of continuous preparation of the biodegradable aliphatic/aromatic polyester copolymer as described above, the amount of the aliphatic dihydroxy compound used, which is a starting material, is reduced and accordingly, manufacturing costs are reduced.
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公开(公告)号：US09617378B2
公开(公告)日：2017-04-11
申请号：US14915711
申请日：2014-08-25
发明人： Ye Jin Kim , Gyung Don Kang , Ki Chull Yoon
摘要： A method of preparing a biodegradable polyester resin is provided. The method of preparing a biodegradable polyester resin includes: (a) synthesizing the biodegradable polyester resin having a reheating crystallization initiation temperature (Tch1), a reheating crystallization peak temperature (Tch), and a reheating crystallization end temperature (Tch2); and (b) crystallizing the biodegradable polyester resin synthesized in step (a) by cooling the resin from a temperature of T1 to a temperature of T2 and then maintaining the resin at a temperature of T2 for a time of tc. Thus, the biodegradable polyester resin with improved solidification rate may be obtained.
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5.发明授权Preparation method of acetylated cellulose ether, and acetylated cellulose ether prepared thereby 有权乙酰化纤维素醚的制备方法和由此制备的乙酰化纤维素醚公开(公告)号：US09469694B2
公开(公告)日：2016-10-18
申请号：US14363991
申请日：2012-11-16
发明人： Min Ju Song , Byoung Hee Son
摘要： Disclosed are a method of preparing acetylated cellulose ether, and acetylated cellulose ether prepared thereby. Here, the disclosed method of preparing the acetylated cellulose ether includes dissolving acetylated cellulose ether in an organic solvent to obtain a mixture comprising a solution of the acetylated cellulose ether; removing an insoluble component that is insoluble in the organic solvent from the mixture; and adding the mixture to water to precipitate the acetylated cellulose ether. The acetylated cellulose ether prepared thereby has a turbidity of less than 40 formazin turbidity units (FTU).
摘要翻译： 公开了制备乙酰化纤维素醚的方法和由此制备的乙酰化纤维素醚。 这里所公开的制备乙酰化纤维素醚的方法包括将乙酰化纤维素醚溶解在有机溶剂中，得到包含乙酰化纤维素醚溶液的混合物; 从混合物中除去不溶于有机溶剂的不溶性成分; 并将混合物加入水中以沉淀乙酰化的纤维素醚。 由此制备的乙酰化纤维素醚具有小于40 formazin浊度单位（FTU）的浊度。
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公开(公告)号：US11827565B2
公开(公告)日：2023-11-28
申请号：US17281457
申请日：2019-09-26
发明人： Hyun Ji Jeong , Bong Jin Kwon , Ji Eun Ju
CPC分类号： C04B24/386 , C04B14/06 , C04B24/126
摘要： The present disclosure relates to a cement mortar additive and a method of manufacturing the same. More particularly, the present disclosure relates to a cement mortar additive for solving the inhomogeneity, which is a problem caused by the deliquescence of urea, so that the deterioration of the physical properties of a cement mortar is prevented and the open time, water retentivity, and workability of the cement mortar are improved, and to a method of manufacturing the cement mortar additive.
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公开(公告)号：US10562983B2
公开(公告)日：2020-02-18
申请号：US15104561
申请日：2014-12-15
发明人： Sung Hwan Bang , Ju Hee Shin , Jin Ryul Son , Kyung Yeol Park , Jeong Hee Chun , Ji Seon Jeong , Sang Youb Lee
摘要： Disclosed are a method for preparing hydroxypropyl methylcellulose acetate succinate (HPMCAS) grains and HPMCAS grains. The disclosed method for preparing HPMCAS grains comprises: a step of esterifying hydroxypropyl methylcellulose (HPMC), acetic anhydride, and succinic anhydride in a reaction medium in the presence of a catalyst so as to obtain a reaction solution containing HPMCAS (esterification step); and a step of continuously or intermittently putting the reaction solution into water so as to form grains (granulating step).
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公开(公告)号：US09776099B2
公开(公告)日：2017-10-03
申请号：US15100472
申请日：2014-11-25
发明人： Kwang Nam Ko , Eun Jung Lee
CPC分类号： A63H33/28 , C09D101/284 , C11D1/94 , C11D3/046 , C11D3/2006 , C11D3/221 , C11D3/225 , C11D17/0039
摘要： A liquid droplet-making composition is provided. The liquid droplet-making composition may provide a liquid droplet with improved retentivity by including cellulose ether and a saccharide.
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公开(公告)号：US09750686B2
公开(公告)日：2017-09-05
申请号：US14649430
申请日：2013-07-22
发明人： Sung Hwan Bang , Kyung Yeol Park , Jin Ryul Son , Jyung Hee Jeon , Ju Hee Shin , Sang Youb Lee
IPC分类号： A61K9/00 , A61K9/70 , B32B23/22 , B32B37/12 , B32B37/00 , B32B37/10 , B32B37/18 , B32B23/20 , A61K47/38 , B32B27/08 , B32B27/18
CPC分类号： A61K9/0053 , A61K9/0065 , A61K9/009 , A61K9/70 , A61K47/38 , B32B23/20 , B32B23/22 , B32B27/08 , B32B27/18 , B32B37/00 , B32B37/0038 , B32B37/10 , B32B37/1284 , B32B37/18 , B32B2037/1276 , B32B2307/716 , B32B2317/18 , B32B2535/00
摘要： The inventive concept relates to a laminated film and a method of laminating films, and the disclosed laminated film includes at least two films sequentially stacked and bonded to each other, wherein each of the films may be each independently a gastric film or an enteric film.
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10.发明授权Method for continuous production of biodegradable aliphatic/aromatic polyester copolymer 有权连续生产生物降解脂肪/芳族聚酯共聚物的方法公开(公告)号：US09403938B2
公开(公告)日：2016-08-02
申请号：US14651489
申请日：2013-07-18
发明人： Gyung Don Kang , Ki Chull Yun , Sang Yob Kim , Kil Seuk Byun , Jung Ryum , Boo Seong Kim , Sei Hoon Kim , Sung Bae Park
CPC分类号： C08G63/80 , C08G63/16 , C08G63/181 , C08G63/78 , C08L67/02
摘要： A continuous preparation method of a biodegradable aliphatic/aromatic polyester copolymer includes: performing a first esterification reaction of an aliphatic dihydroxy compound with an aliphatic dicarboxylic acid at a temperature of 185° C. or less; continuously performing a second esterification reaction of a reaction product from the first esterification reaction; continuously performing a first polycondensation reaction of a reaction product from the second esterification reaction to obtain a prepolymer; continuously performing a second polycondensation reaction of the prepolymer to obtain a second polycondensation reaction product having a melting index from about 15 g/10 min to about 25 g/10 min; and continuously performing a third polycondensation reaction of the second polycondensation reaction product to prepare the biodegradable aliphatic/aromatic polyester copolymer, wherein the performing of the first esterification reaction or the continuously performing of the second esterification reaction includes adding an aromatic carboxylic acid.
摘要翻译： 生物降解性脂肪族/芳香族聚酯共聚物的连续制备方法包括：在185℃以下的温度下进行脂族二羟基化合物与脂肪族二羧酸的第一次酯化反应; 连续进行来自第一酯化反应的反应产物的第二次酯化反应; 连续进行来自第二酯化反应的反应产物的第一次缩聚反应，得到预聚物; 连续进行预聚物的第二缩聚反应，得到熔融指数为约15g / 10min至约25g / 10min的第二缩聚反应产物; 并连续进行第二缩聚反应产物的第三缩聚反应，制备生物降解性脂肪族/芳香族聚酯共聚物，其中进行第一酯化反应或连续进行第二酯化反应包括加入芳族羧酸。
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