28 patents
Utility
Polymer for formation of resist underlayer film, composition for formation of resist underlayer film comprising same and method for manufacturing semiconductor element by using same
15 Aug 23
The present invention relates to a polymer having a novel structure used in a process for manufacturing a semiconductor and a display; an underlayer film composition for a process for manufacturing a semiconductor and a display, including the same; and a method for manufacturing a semiconductor element by using the same.
Minho Jung, Namkyu Lee, Jinsu Ham, Kyunphyo Lee, Kwangkuk Lee, Kwangho Lee, Hyeryoung Lee, Sooyoung Hwang
Filed: 2 Jul 18
Utility
Use of a copolymer of ethylene and of acrylate(s) prepared in a tubular reactor for modifying the melt rheology of a thermoplastic composition
17 Jan 23
Provided herein is a copolymer of ethylene and acrylate(s) having a melt flow index (MFI) greater than or equal to 50 g/10 minutes, obtained by free-radical copolymerisation under high pressure carried out in a tubular reactor, and methods of using the same.
Paul Coupillaud, Sebastien Quinebeche, Alain Bouilloux
Filed: 26 Mar 19
Utility
Encapsulant of a photovoltaic module
20 Dec 22
An encapsulant of a photovoltaic module, intended for coating a photovoltaic cell, having a composition which does not include any cross-linking agent and including: an ethylene—alkyl acrylate copolymer, the copolymer making up 70% to 96% of the weight of the composition; a silane, making up 0.1% to 2% of the weight of the composition; wherein the composition also includes a terpolymer of ethylene—acrylic ester—maleic anhydride or glycidyl methacrylate, the terpolymer making up 2% to 29.9% of the weight of the composition.
Guillaume Jacques, Stéphane Bizet, Benoît Savignat
Filed: 8 Jun 15
Utility
Aqueous dispersion of ethylene-carboxylic acid copolymer and method of preparing the same
15 Nov 22
A method of preparing an aqueous dispersion of an ethylene-carboxylic acid copolymer according to exemplary embodiments of the present invention includes: mixing 30% by weight or more of an ethylene-(meth)acrylic acid copolymer, a basic compound, and water to form a mixed solution; and adding an inorganic salt compound to the mixed solution.
Hai Jin Shin, Doh Yeon Park, Yong Zheng, Hae Woong Park
Filed: 6 Oct 20
Utility
Adhesive composition based on ethylene copolymers, useful for extrusion-coating and extrusion-lamination on a variety of supports
4 Oct 22
The invention concerns an adhesive composition consisting of at least one ethylene polymer or copolymer, said composition comprising at least one unsaturated carboxylic acid ester comonomer, and at least one functional comonomer, useful in an extrusion-coating process for application on a support or in an extrusion-lamination process for bonding together several supports of different type or not, in a wide temperature range.
Jerome Pascal, Fabrice Chopinez, Damien Rauline
Filed: 13 Dec 05
Utility
Use of at least one phenolic compound to stabilise ethylene copolymerisation reactions
13 Sep 22
A method of stabilizing radical ethylene copolymerization reactions for approximately 5 to 10 minutes, the method including using a phenolic compound with other comonomers and performing the radical ethylene copolymerization reactions at high pressure.
Christian Laurichesse, Thibaut Severac, Angélique Lelievre, Claire Isabelle Michalowicz, Louis Defoor, Yves Cabon
Filed: 22 Dec 17
Utility
Polymer for organic bottom anti-reflective coating and bottom anti-reflective coatings comprising the same
6 Sep 22
Provided are a polymer for an organic bottom anti-reflective coating and a bottom anti-reflective coating composition containing the same.
Minho Jung, Cheolwoo Kim, Jinsu Ham, Sunjoo Kim, Myung Jun Park, Namkyu Lee, Hyesoo Lee
Filed: 4 Jul 18
Utility
Shaped dehydrogenation catalysts and process for converting paraffins to corresponding olefins, using same
23 Aug 22
Disclosed herein are a dehydrogenation catalyst having single-atom cobalt loaded on a silica-based, shaped support, a preparation method therefor, and a method for preparing an olefin by dehydrogenating a corresponding paraffin, particularly light paraffin in the presence of the dehydrogenation catalyst.
Ho Won Lee, Ju Hwan Im, Hee Soo Kim, Hye Jin Park, Je Mi Lim, Dae Hyun Choo
Filed: 18 Nov 20
Utility
Method for Producing Ethylene-Carboxylic Acid Copolymer
4 Aug 22
In a method of producing an ethylene-carboxylic acid copolymer according to an embodiment of the present invention, a carboxylic acid monomer and a polar co-solvent are introduced separately into a mixing unit or stored together in a supply unit to form a mixture.
In Hyoup Song, Hong Chan Kim, Jang Hoon Ock, Jung A Lee, Wan Ju Jeong
Filed: 29 Jan 20
Utility
Adhesive composition based on ethylene copolymers obtained by tube copolymerisation, that can be used for extrusion-coating and extrusion-lamination
26 Jul 22
An adhesive composition of at least one ethylene polymer or copolymer, wherein at least one first polymer or copolymer including the unsaturated carboxylic acid ester type comonomer is copolymerized in a continuous high-pressure tubular reactor, while a second polymer or copolymer including the functional comonomer is copolymerized by either autoclave or tubular continuous high-pressure radical means; the first and second polymer or copolymer possibly being of one and the same polymer/copolymer.
Clio Cocquet, Betty Laurent, Claire Michalowicz, Mathieu Bodiguel, Alain Bouilloux
Filed: 11 May 16
Utility
Method for oligomerizing olefins
14 Jun 22
The present invention relates to a method for oligomerizing olefins including the steps of: carrying out an oligomerization reaction of olefins by injecting an oligomerization transition metal catalyst, a cocatalyst, an olefin monomer and a solvent into a reactor; and injecting, into the reaction product of the oligomerization reaction, a catalyst inactivator including a gaseous inorganic material that contains oxygen.
Woosung Jung, Chansaem Park, Hyoseung Park, Sungreal Son, Inhyoup Song
Filed: 10 Sep 18
Utility
Method of producing carbon nanotubes in fluidized bed reactor
7 Jun 22
A method of producing carbon nanotubes in a fluidized bed reactor includes preparing a carbon nanotube by supplying a catalyst and a carbon source to an interior of the fluidized bed reactor having an internal pressure of 0.5 barg to 1.2 barg (gauge pressure), thereby improving the yield and purity of carbon nanotubes.
Sung Real Son, Ji Min Kim, Min Ji Sung, Sang Uk Kim, Jung Yul Son
Filed: 24 May 18
Utility
Method for preparing a linear alpha olefin including oxygen removal from the feed
10 May 22
Provided is a method for preparing a linear alpha olefin using a chromium-based catalyst, including the steps of: removing oxygen impurities by contacting an olefin with an oxygen adsorbent; injecting the olefin from which the oxygen impurities are removed; a chromium-based catalyst into a reactor; and oligomerizing the olefin in the reactor.
Chansaem Park, Hyoseung Park, Sungreal Son, Inhyoup Song, Woosung Jung
Filed: 11 Jun 19
Utility
Method for preparing paraffin
19 Apr 22
The present invention relates to a method for preparing paraffin, and can provide a method for preparing paraffin including a hydrogenation step of by-products of a process for preparing linear alpha olefins.
Sungreal Son, Jisun Choi, Chansaem Park, Hyo Seung Park, In Hyoup Song, Woo Sung Jung, Jae Suk Choi, Daehyun Choo
Filed: 9 Nov 18
Utility
Process for Reducing Unsaturated Hydrocarbons in Aromatic Fraction Through Selective Hydrogenation
10 Mar 22
Disclosed are a process and system that are capable of performing selective hydrogenation on aromatic fractions by configuring a catalyst bed through staged loading of a plurality of hydrogenation catalysts with different catalytic properties, or configuring a catalyst system in which a plurality of hydrogenation catalysts are arranged using a plurality of reactors in such a way as to be equivalent with the staged loading, and as a result, are capable of suppressing aromatic loss while improving the selective removal of unsaturated hydrocarbons in the aromatic fraction and durability compared to the case of using a single catalyst.
Sang Il Lee, Ji Hoon Lee, Young Eun Cheon
Filed: 30 Aug 21
Utility
Impervious breathable ethylene copolymer film
8 Mar 22
An impervious breathable film made of a composition that does not include polymers having polyether units and includes one or more polymers, at least one of which is an ethylene copolymer.
Laurent B. Cartier, Stéphane Bizet
Filed: 4 Apr 11
Utility
Encapsulant of a photovoltaic module
8 Feb 22
An encapsulant of a photovoltaic module, intended for coating a photovoltaic cell (10), including: a copolymer of ethylene-alkyl acrylate, the melt flow index (MFI) of the copolymer being 1 g/10 min to 40 g/10 min; and a silane making up 0.1% to 0.5% of the weight of the composition; wherein the encapsulant also includes a cross-linking agent making up 0.1% to 0.5% of the weight of the composition and wherein the copolymer makes up at least 99% of the weight of the composition.
Guillaume Jacques, Stephane Bizet, Benoit Savignat, Molly Cannet
Filed: 26 Jun 15
Utility
Oligomerization catalyst and method for preparing ethylene oligomer using same
1 Feb 22
The present invention relates to an oligomerization catalyst including a transition metal or transition metal precursor, a halogen-substituted organic ligand, and a heteroatom ligand, and to a method for selectively preparing 1-hexene or 1-octene from ethylene using the catalyst.
Sang Ick Lee, Eun Jung Baek, Sun Young Kim, Hyo Seung Park, Min Seon Jung
Filed: 11 May 17
Utility
Ligand, oligomerization catalyst comprising same, and method for producing ethylene oligomer by using oligomerization catalyst
18 Jan 22
The present invention relates to a ligand, an ethylene oligomerization catalyst including the ligand, and a method for selectively producing 1-hexene or 1-octene from ethylene by using the catalyst.
Hoseong Lee, Yongnam Joe
Filed: 12 Oct 18
Utility
Nickel-Based Oligomerization Catalysts and Method for Oligomerizing Light Olefins Using the Same
13 Jan 22
In the present disclosure, a heterogeneous nickel-based oligomerization catalyst in which nickel in the form of single atom is loaded on an Al-mesoporous silicate support by ion exchange and a method for producing the same, and a method for oligomerizing light olefins, specifically C4 olefins using the catalyst are described.
Jae Suk Choi, Ka Young Kim, Hee Soo Kim, Ju Hwan Im, Dae Hyun Choo, Ho Won Lee, Je Mi Lim
Filed: 29 Nov 19