Patents by Inventor Jeong Sik Bae
Jeong Sik Bae has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 10829668Abstract: The present application relates to a pressure-sensitive adhesive composition, a protective film, an optical element and a display device. The pressure-sensitive adhesive composition of the present application has excellent storage stability, exhibits an appropriate low-speed and high-speed peel forces after the cross-linked structure is formed, and has excellent balance of both. Furthermore, the pressure-sensitive adhesive formed by the pressure-sensitive adhesive composition does not leave contaminants in the adherend after peeling, while exhibiting re-detachability. Accordingly, when the pressure-sensitive adhesive composition is applied to, for example, a protective film, it is also advantageous in terms of high-speed processes by being easily peeled off upon high-speed peeling as well as it exhibits an excellent protective effect, thereby being capable of exhibiting excellent antistatic characteristics.Type: GrantFiled: December 7, 2016Date of Patent: November 10, 2020Assignee: LG Chem, Ltd.Inventors: Sang Ha Son, Jeong Sik Bae, Jeong Ae Yoon, Sung Soo Yoon
-
Publication number: 20200123423Abstract: The present application relates to a pressure-sensitive adhesive composition, a protective film, an optical element and a display device. The pressure-sensitive adhesive composition of the present application has excellent storage stability, exhibits an appropriate low-speed and high-speed peel forces after the cross-linked structure is formed, and has excellent balance of both. Furthermore, the pressure-sensitive adhesive formed by the pressure-sensitive adhesive composition does not leave contaminants in the adherend after peeling, while exhibiting re-detachability. Accordingly, when the pressure-sensitive adhesive composition is applied to, for example, a protective film, it is also advantageous in terms of high-speed processes by being easily peeled off upon high-speed peeling as well as it exhibits an excellent protective effect, thereby being capable of exhibiting excellent antistatic characteristics.Type: ApplicationFiled: December 7, 2016Publication date: April 23, 2020Applicant: LG Chem, Ltd.Inventors: Sang Ha SON, Jeong Sik BAE, Jeong Ae YOON, Sung Soo YOON
-
Patent number: 10308751Abstract: A block copolymer, a method for preparing a block copolymer, a resin composition, and a film are provided. The block copolymer can be useful in inhibiting complete separation of the hard segment even under a severe high-temperature condition by increasing the chemical cross-linking density around the hard segment without causing an increase in glass transition temperature of the hard segment, thereby maintaining high-temperature durability.Type: GrantFiled: September 1, 2014Date of Patent: June 4, 2019Assignee: LG Chem, Ltd.Inventors: Jeong Ae Yoon, Su Jeong Kim, Sung Soo Yoon, Min Ki Lee, Kee Young Kim, Han Na Chi, Sang Hyun Hong, Jeong Sik Bae
-
Patent number: 10131820Abstract: The present invention relates to a pressure-sensitive adhesive composition, a protective film, an optical element, and a display device. A pressure-sensitive adhesive sheet formed using the pressure-sensitive adhesive composition according to the present invention can have proper high-speed and low-speed peel strengths and simultaneously can exhibit an excellent balance between the high-speed and low-speed peel strengths. The pressure-sensitive adhesive sheet formed using the pressure-sensitive adhesive composition according to one exemplary embodiment of the present invention exhibits a proper level of surface resistance and excellent electrostatic discharge characteristics, and has no contaminants with respect to an adherend even when the pressure-sensitive adhesive sheet is peeled from the adherend after the pressure-sensitive adhesive sheet is attached to the adherend for a long period of time.Type: GrantFiled: August 3, 2015Date of Patent: November 20, 2018Assignee: LG Chem, Ltd.Inventors: Sang Ha Son, Sung Soo Yoon, Kee Young Kim, Jeong Sik Bae
-
Patent number: 10066130Abstract: A pressure-sensitive adhesive composition, a protective film, an optical element and a display device are provided. The pressure-sensitive adhesive composition has excellent storage stability, exhibits proper low-speed and high-speed peel strengths after formation of a cross-linked structure, and also has an excellent balance between the low-speed and high-speed peel strengths. Therefore, when the pressure-sensitive adhesive composition is applied to a protective film, the pressure-sensitive adhesive composition can have an excellent protective effect, and can also be advantageous to perform a high-speed process since the pressure-sensitive adhesive composition is easily peeled during a high-speed peeling process. In the high-speed peeling process, the pressure-sensitive adhesive composition can exhibit excellent antistatic characteristics.Type: GrantFiled: December 18, 2014Date of Patent: September 4, 2018Assignee: LG Chem, Ltd.Inventors: Kee Young Kim, Sung Soo Yoon, Jeong Sik Bae
-
Patent number: 10066133Abstract: Provided are a pressure-sensitive adhesive composition, a protective film, an optical device, and a display device. The pressure-sensitive adhesive composition may exhibit excellent storage stability, suitable low speed and high speed peel-off strengths after forming a crosslinking structure, and have an excellent balance between them. Accordingly, the pressure-sensitive adhesive composition may exhibit an excellent protective effect when applied to a protective film, may be easily peeled in a high speed peel-off and thus advantageous for a high speed process, and may exhibit an excellent antistatic characteristic.Type: GrantFiled: June 19, 2014Date of Patent: September 4, 2018Assignee: LG Chem, Ltd.Inventors: Jeong Sik Bae, Sung Soo Yoon, Kee Young Kim
-
Publication number: 20170260423Abstract: The present invention relates to a pressure-sensitive adhesive composition, a protective film, an optical element, and a display device. A pressure-sensitive adhesive sheet formed using the pressure-sensitive adhesive composition according to the present invention can have proper high-speed and low-speed peel strengths and simultaneously can exhibit an excellent balance between the high-speed and low-speed peel strengths. The pressure-sensitive adhesive sheet formed using the pressure-sensitive adhesive composition according to one exemplary embodiment of the present invention exhibits a proper level of surface resistance and excellent electrostatic discharge characteristics, and has no contaminants with respect to an adherend even when the pressure-sensitive adhesive sheet is peeled from the adherend after the pressure-sensitive adhesive sheet is attached to the adherend for a long period of time.Type: ApplicationFiled: August 3, 2015Publication date: September 14, 2017Applicant: LG Chem, Ltd.Inventors: Sang Ha Son, Sung Soo Yoon, Kee Young Kim, Jeong Sik Bae
-
Publication number: 20160376480Abstract: Provided are a pressure-sensitive adhesive composition, a protective film, an optical device, and a display device. The pressure-sensitive adhesive composition may exhibit excellent storage stability, suitable low speed and high speed peel-off strengths after forming a crosslinking structure, and have an excellent balance between them. Accordingly, the pressure-sensitive adhesive composition may exhibit an excellent protective effect when applied to a protective film, may be easily peeled in a high speed peel-off and thus advantageous for a high speed process, and may exhibit an excellent antistatic characteristic.Type: ApplicationFiled: June 19, 2014Publication date: December 29, 2016Applicant: LG Chem, Ltd.Inventors: Jeong Sik Bae, Sung Soo Yoon, Kee Young Kim
-
Publication number: 20160208039Abstract: A block copolymer, a method for preparing a block copolymer, a resin composition, and a film are provided. The block copolymer can be useful in inhibiting complete separation of the hard segment even under a severe high-temperature condition by increasing the chemical cross-linking density around the hard segment without causing an increase in glass transition temperature of the hard segment, thereby maintaining high-temperature durability.Type: ApplicationFiled: September 1, 2014Publication date: July 21, 2016Applicant: LG Chem, Ltd.Inventors: Jeong Ae Yoon, Su Jeong Kim, Sung Soo Yoon, Min Ki Lee, Kee Young Kim, Han Na Chi, Sang Hyun Hong, Jeong Sik Bae
-
Publication number: 20150093533Abstract: A pressure-sensitive adhesive composition, a protective film, an optical element and a display device are provided. The pressure-sensitive adhesive composition has excellent storage stability, exhibits proper low-speed and high-speed peel strengths after formation of a cross-linked structure, and also has an excellent balance between the low-speed and high-speed peel strengths. Therefore, when the pressure-sensitive adhesive composition is applied to a protective film, the pressure-sensitive adhesive composition can have an excellent protective effect, and can also be advantageous to perform a high-speed process since the pressure-sensitive adhesive composition is easily peeled during a high-speed peeling process. In the high-speed peeling process, the pressure-sensitive adhesive composition can exhibit excellent antistatic characteristics.Type: ApplicationFiled: December 18, 2014Publication date: April 2, 2015Inventors: Kee Young Kim, Sung Soo Yoon, Jeong Sik Bae