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公开(公告)号：US20240158546A1
公开(公告)日：2024-05-16
申请号：US17987995
申请日：2022-11-16
发明人： Yong Zheng , Soon Min Kwon , Ki Yup Kim , Sang Yeup Lee
摘要： Provided are an ionomer composition including silica particles which satisfy a specific equation and are acidic in an aqueous solution state and an ionomer film produced therefrom. The ionomer composition has excellent miscibility, and when a film is produced using the composition, surface appearance such as transparency is well-improved, and wear resistance, coefficient of friction, and the like of the film are significantly improved.
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公开(公告)号：US20230383040A1
公开(公告)日：2023-11-30
申请号：US18325461
申请日：2023-05-30
发明人： Sang Yeup Lee , Soon Min Kwon , Ki Yup Kim
IPC分类号： C08F265/06
CPC分类号： C08F265/06
摘要： The present disclosure relates to an ethylene alkyl acrylate-based copolymer ionomer and a preparation method thereof. Specifically, the present disclosure relates to a preparation method of an ionomer including (a) preparing a mixture by mixing an ethylene-based copolymer selected from an ethylene alkyl acrylate copolymer and/or an ethylene alkyl methacrylate copolymer having a melt index of 1 to 500 g/10 min as measured according to ASTM D1238, and an alkali metal salt; and (b) melting at 100 to 400° C. and stirring the mixture to introduce a substituent of an acrylic acid salt and/or a methacrylic acid salt into the copolymer.
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公开(公告)号：US20240174795A1
公开(公告)日：2024-05-30
申请号：US18448370
申请日：2023-08-11
发明人： Do Young Kim , Hyun Sik Yang , Yu Hyun Kim , Ki Yup Kim , Joo Hyun Nam , Chul Soon Moon , Ji Hae Park , Sung Won Lee , Jun Haeng Lee , Ho Seung Lee
IPC分类号： C08G63/183 , C08G63/52 , C08G63/78
CPC分类号： C08G63/183 , C08G63/52 , C08G63/785 , C08G2230/00
摘要： Provided are a biodegradable aliphatic-aromatic polyester copolymer having excellent hydrolysis resistance and high viscosity which has a carboxyl end group (CEG) content of 15 mg KOH/g or less, a ratio (Mz/Mn) of a z-average molecular weight (Mz) to a number average molecular weight (Mn) of 3 to 15, and a melt index (MI) of 5 g/10 min or less as measured under conditions of a temperature of 190° C. and a load of 2.16 kg in accordance with ASTM D 1238. A method of preparing a biodegradable aliphatic-aromatic polyester copolymer is provided, including adding a chain extender and an anti-hydrolysis agent to an aliphatic-aromatic polyester pre-copolymer over time, whereby a significant viscosity rise and improvement of hydrolysis resistance may be implemented simultaneously.
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公开(公告)号：US11987667B1
公开(公告)日：2024-05-21
申请号：US18448370
申请日：2023-08-11
发明人： Do Young Kim , Hyun Sik Yang , Yu Hyun Kim , Ki Yup Kim , Joo Hyun Nam , Chul Soon Moon , Ji Hae Park , Sung Won Lee , Jun Haeng Lee , Ho Seung Lee
IPC分类号： C08G63/52 , C08G63/183 , C08G63/78
CPC分类号： C08G63/183 , C08G63/52 , C08G63/785 , C08G2230/00
摘要： Provided are a biodegradable aliphatic-aromatic polyester copolymer having excellent hydrolysis resistance and high viscosity which has a carboxyl end group (CEG) content of 15 mg KOH/g or less, a ratio (Mz/Mn) of a z-average molecular weight (Mz) to a number average molecular weight (Mn) of 3 to 15, and a melt index (MI) of 5 g/10 min or less as measured under conditions of a temperature of 190° C. and a load of 2.16 kg in accordance with ASTM D 1238. A method of preparing a biodegradable aliphatic-aromatic polyester copolymer is provided, including adding a chain extender and an anti-hydrolysis agent to an aliphatic-aromatic polyester pre-copolymer over time, whereby a significant viscosity rise and improvement of hydrolysis resistance may be implemented simultaneously.
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公开(公告)号：US08905749B2
公开(公告)日：2014-12-09
申请号：US14183850
申请日：2014-02-19
发明人： Hyuk Jun Kim , Ki Yup Kim , Sung Ho Son , Yong Gyun Cho , Chol Ho Lee , Yoo Seock Hwang
摘要： Disclosed is a casting belt used for manufacturing an optical film by means of a solvent casting process, in more detail, a casting belt for producing a transcendental wide width film which is used to produce a film in a gel state by casting a dope when manufacturing a film that is used for a polarizer of liquid crystal displays or optical compensation films.
摘要翻译： 公开了一种用于通过溶剂浇铸工艺制造光学膜的铸造带，更详细地说，一种用于制造超越宽幅膜的铸造带，其用于在制造时通过铸造涂料来生产胶凝状态的膜 用于液晶显示器的偏振器或光学补偿膜的膜。
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公开(公告)号：US20140238269A1
公开(公告)日：2014-08-28
申请号：US14190605
申请日：2014-02-26
发明人： Sang Yeup Lee , Hye Jin Lee , Jong Chae Kim , Seok Won Kim , Hyuk Jun Kim , Ki Yup Kim , Yong Gyun Cho
IPC分类号： C08L1/10
摘要： Disclosed is an optical film, and more particularly, an optical film having excellent mechanical physical properties and low vapor permeability.
摘要翻译： 公开了一种光学膜，更具体地说，具有优异的机械物理性能和低蒸汽渗透性的光学膜。
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公开(公告)号：US20130302537A1
公开(公告)日：2013-11-14
申请号：US13670901
申请日：2012-11-07
发明人： Sang Yeup Lee , Hye Jin Lee , Ki Yup Kim , Yong Gyun Cho
IPC分类号： G02B5/30 , G02F1/1335
CPC分类号： G02B5/3083 , C08J5/18 , C08J2301/12 , C08L1/12 , G02B1/041 , G02B5/3033 , G02F1/133528 , Y10T428/1041 , C08L1/10
摘要： Provided is a cellulose acylate film. More particularly, the present invention relates to a cellulose acylate film having a low light scattering efficiency (haze).
摘要翻译： 提供纤维素酰化物膜。 更具体地，本发明涉及具有低光散射效率（雾度）的纤维素酰化物膜。
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