Patents Examined by Randy P Gulakowski
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Patent number: 12252616Abstract: Curable silicone compositions, encapsulants including the same, and optical semiconductor devices including the encapsulants are provided herein. In an embodiment, a curable silicone composition includes: (A) an alkenyl group-containing organopolysiloxane having at least two alkenyl groups per molecule; (B) an organohydrogenpolysiloxane having at least two silicon atom-bonded hydrogen atoms per molecule; (C) an epoxy group-containing resinous organopolysiloxane represented by Average Unit Formula (I): (R13SiO1/2)f(R22SiO2/2)g(R1SiO3/2)h(SiO4/2)i(XO1/2)j wherein R1 are independently halogen-substituted or unsubstituted monovalent hydrocarbon groups, at least two R1 are alkenyl groups; R2 are independently halogen-substituted or unsubstituted monovalent hydrocarbon groups or epoxy group-containing organic groups, wherein at least one R2 is an epoxy group-containing organic group; X is a hydrogen atom or an alkyl group; 0?f<1; 0<g<1; 0?h<0.9; 0?i<0.5; and 0<j<0.5; f+g+h+i+j=1.Type: GrantFiled: December 16, 2021Date of Patent: March 18, 2025Assignees: Dupont Toray Specialty Materials Kabushiki Kaisha, DuPont Specialty Materials Korea Ltd.Inventors: Sawako Horie, Kasumi Takeuchi, Shunya Takeuchi, Hyunji Kang, Akihiko Kobayashi
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Patent number: 12234321Abstract: The objective of the present invention is to provide a method for producing a polycarbonate safely and efficiently. A method for producing a polycarbonate is characterized in comprising the step of irradiating a light to a composition comprising a C1-4 halogenated hydrocarbon, the specific diol compound and the specific base in the presence of oxygen.Type: GrantFiled: November 14, 2019Date of Patent: February 25, 2025Assignees: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY, MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventor: Akihiko Tsuda
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Patent number: 12215220Abstract: The invention relates to 3D printed parts made with thermoplastic polymers having a low stiffening temperature. 3D printed parts of the invention have very good Z layer adhesion, have a high elongation at break in the Z direction, preferably of more than 50 percent, and have at least an 80 percent ratio of Z to XY stress at yield or at break. The resulting part may be nearly isotropic—having similar mechanical properties in the XY and Z print directions. The excellent layer adhesion makes the resultant printed part more robust—able to withstand many cycles of use. Certain polymers of the invention produce printed parts that have a very low haze, and are nearly transparent.Type: GrantFiled: October 3, 2019Date of Patent: February 4, 2025Assignee: ARKEMA FRANCEInventors: David Shin-Ren Liu, Mark A. Aubart, Sara Reynaud
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Patent number: 12209165Abstract: Provided are methods of producing polyamides from beta-lactones. The polyamides include bio-based polyamides that may be obtained, either in part or completely, from renewable sources.Type: GrantFiled: June 14, 2023Date of Patent: January 28, 2025Assignee: Novomer, Inc.Inventors: Han Lee, Sadesh H. Sookraj, Alexander Tseitlin
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Patent number: 12210285Abstract: Provided is a resin composition which makes it possible to improve the resistance to a flux to be used in soldering and the resistance to reflow, and which, when used as a photosensitive resin composition, can be cured into a film capable of being imparted with such thick film processability that the film can be processed with high sensitivity even when the thickness of the film is as high as 15 ?m or more. A resin composition comprising (A) a resin having a structural unit represented by general formula (1) and/or general formula (2), (B) a phenolic resin and (C) an antioxidant agent, wherein the phenolic resin (B) contains a structure represented by general formula (3).Type: GrantFiled: July 25, 2019Date of Patent: January 28, 2025Assignee: TORAY INDUSTRIES, INC.Inventors: Keika Hashimoto, Yuki Masuda, Yuki Takeyama
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Patent number: 12202936Abstract: The objective of the present invention is to provide a method for producing a polycarbonate safely and efficiently. A method for producing a polycarbonate is characterized in comprising the step of irradiating a light to a composition comprising a C1-4 halogenated hydrocarbon, the specific diol compound and the specific base in the presence of oxygen.Type: GrantFiled: November 14, 2019Date of Patent: January 21, 2025Assignees: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY, MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventor: Akihiko Tsuda
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Patent number: 12187846Abstract: The invention provides a high-molecular-weight polyethylene glycol derivative that does not cause vacuolation of cells. The degradable polyethylene glycol derivative is represented by the following formula (1): wherein m is 1-7, n1 and n2 are each independently 45-682, p is 1-4, R is an alkyl group having 1-4 carbon atoms, Z is an oligopeptide with 2-8 residues composed of neutral amino acids excluding cysteine, Q is a residue of a compound having 2-5 active hydrogens, X is a functional group capable of reacting with a bio-related substance, and L1, L2, L3, L4 and L5 are each independently a single bond or a divalent spacer.Type: GrantFiled: March 29, 2019Date of Patent: January 7, 2025Assignees: NOF Corporation, Tokyo Institute of TechnologyInventors: Hiroki Yoshioka, Masaki Kamiya, Yuji Yamamoto, Midori Hirai, Akiko Sasaki, Nobuhiro Nishiyama, Makoto Matsui, Hiroyasu Takemoto, Kazuki Miyauchi, Takahiro Nomoto, Keishiro Tomoda
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Patent number: 12187867Abstract: A composition can be used for producing a PMMA-based cast polymer with a low styrene content using urea (derivatives) as a formulation constituent, and a hydrophilic inorganic compound as a filler. It is possible to produce PMMA-based cast polymers and mouldings having surprisingly high mechanical stability from the composition.Type: GrantFiled: July 3, 2020Date of Patent: January 7, 2025Assignee: Evonik Operations GmbHInventors: Thomas Richter, Christoph Seipel, Kay Bernhard
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Patent number: 12188074Abstract: A method for reducing condensate in a subsurface formation is disclosed. The method includes introducing a reactive mixture including an aqueous solution, urea, dopamine, a silica nanoparticle precursor, a silane grafting compound, and an alcohol compound into the subsurface formation. The method also includes allowing generation of ammonia through thermal decomposition of the urea and allowing the silica nanoparticle precursor to hydrolyze, thereby forming silica nanoparticles. The method further includes allowing the silane grafting compound to graft onto the silica nanoparticles, thereby forming functionalized silica nanoparticles. The method also includes allowing polymerization of the dopamine, thereby forming polydopamine. The method also includes allowing the functionalized silica nanoparticles to attach to the subsurface formation via the polydopamine, thereby reducing condensate in the subsurface formation.Type: GrantFiled: September 24, 2020Date of Patent: January 7, 2025Assignee: Saudi Arabian Oil CompanyInventors: Wei Wang, Hooisweng Ow, Sehoon Chang
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Patent number: 12187887Abstract: An epoxy resin composition, and a prepreg, a laminate, and a metal foil-clad laminate manufactured using same. The epoxy resin composition comprises epoxy resin (A), phenolic curing agent (B), high molecular weight resin (C), and an optional inorganic filler (D), the high molecular weight resin (C) having the structure shown in formula (1), formula (2), formula (3), and formula (4), the weight-average molecular weight being between 100,000 and 200,000, and the content of the epoxy resin (A) containing a naphthalene ring skeleton and the phenolic curing agent (B) containing a naphthalene ring skeleton being 0%. The present epoxy resin composition, and the prepreg, the laminate, and the metal foil-clad laminate manufactured using same have good heat resistance, low modulus, and a low coefficient of thermal expansion.Type: GrantFiled: December 29, 2018Date of Patent: January 7, 2025Assignee: SHENGYI TECHNOLOGY CO., LTD.Inventors: Junqi Tang, Zhiguang Li
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Patent number: 12180328Abstract: A metal-chelating resin includes (a) a compound represented by Formula (I): or a stereoisomeric form thereof or a salt thereof, wherein R1, R2, R3, R4, Ra, Rb, Rc and Rd are as defined herein; and (b) an organic polymer resin having at least one complementary reactive functional group covalently linked with at least one linking group of the compound represented by Formula (I).Type: GrantFiled: May 4, 2022Date of Patent: December 31, 2024Assignee: SACHEM, INC.Inventors: Barry L. Haymore, Sara S. Moghaddam, Charles B. Little, Ari K. Kar
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Patent number: 12173110Abstract: A composition and a material prepared from the composition are provided.Type: GrantFiled: May 25, 2021Date of Patent: December 24, 2024Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chi-Jui Lin, Shin-Liang Kuo, Shu-Jiuan Huang
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Patent number: 12157815Abstract: A polyimide resin composition, a polyimide resin adhesive layer, a laminate, and a manufacturing method of an electronic component are provided. The polyimide resin composition includes a polyimide resin. The polyimide resin is obtained by the polymerization reaction of a diamine (A) and a tetracarboxylic dianhydride (B). The diamine (A) includes a diamine (A-1) represented by following Formula (I-1) and a diamine (A-2) represented by following Formula (I-2). A molar ratio ((A-1):(A-2)) of the diamine (A-1) to the diamine (A-2) is 0.1:0.2 to 0.6.Type: GrantFiled: June 21, 2021Date of Patent: December 3, 2024Assignee: eChem Solutions Corp.Inventors: Yung-Yu Lin, Chi-Yu Lai, Che-Wei Chang
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Patent number: 12139589Abstract: A composition can be used for producing a PMMA-based cast polymer with a low styrene content using urea (derivatives) as a formulation constituent, and a hydrophilic inorganic compound as a filler. It is possible to produce PMMA-based cast polymers and mouldings having surprisingly high mechanical stability from the composition.Type: GrantFiled: July 3, 2020Date of Patent: November 12, 2024Assignee: Evonik Operations GmbHInventors: Thomas Richter, Christoph Seipel, Kay Bernhard
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Patent number: 12139561Abstract: A process can be used for preparing polyether-modified polybutadienes. The process involves reacting at least one polybutadiene (A) with at least one epoxidizing reagent (B) to give at least one epoxy-functional polybutadiene (C). The at least one epoxy-functional polybutadiene (C) is then reacted with at least one hydroxy-functional compound (D) to give at least one hydroxy-functional polybutadiene (E). The at least one hydroxy-functional polybutadiene (E) is finally reacted with at least one epoxy-functional compound (F) to give at least one polyether-modified polybutadiene (G).Type: GrantFiled: November 23, 2020Date of Patent: November 12, 2024Assignee: Evonik Operations GmbHInventors: Frank Schubert, Frauke Henning, Sarah Otto, Frank Dzialkowsky, Heike Hahn
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Patent number: 12138615Abstract: A polymer represented by the following general formula (I): wherein X1, X2, and X3 each represent a chalcogen atom, R1 and R2 each independently represent any one selected from the group consisting of a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms, and an aralkyl group, R3 and R4 each independently represent any one selected from the group consisting of an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group, and an aralkyl group, R5 and R6 each independently represent any one selected from the group consisting of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group, and an aralkyl group, R7 represents a hydrogen atom or a methyl group, R8 represents any one selected from the group consisting of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group, and an aralkyl group, nType: GrantFiled: February 20, 2020Date of Patent: November 12, 2024Assignee: KURARAY CO., LTD.Inventors: Daiki Noguchi, Takashi Fukumoto, Yuki Nishijima
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Patent number: 12134710Abstract: One embodiment of the present invention provides an adhesive composition including, on the basis of the total weight thereof, 0.5 to 4.0% by weight of an epoxy compound, 1.0 to 8.0% by weight of an isocyanate compound, 1.7 to 22% by weight of a rubber latex, 1.0 to 8.0% by weight of a polyurethane dispersion (PUD) resin, 0.1 to 2.0% by weight of an amine compound, and 69 to 92% by weight of a solvent, wherein the epoxy compound and the isocyanate compound have a weight ratio of 1:1 to 1:10.Type: GrantFiled: March 21, 2018Date of Patent: November 5, 2024Assignee: KOLON INDUSTRIES, INC.Inventors: Da Ae Kim, Min Ho Lee, Ok Hwa Jeon
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Patent number: 12116456Abstract: A fluoropolyether group-containing compound of the following formula (1) or (2): RF1—X—RSi??(1) RSi—X—RF2—X—RSi??(2) wherein RF1, RSi and RF2 are as defined herein.Type: GrantFiled: September 24, 2021Date of Patent: October 15, 2024Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Tsuneo Yamashita, Hisashi Mitsuhashi, Takeshi Maehira, Yoshimi Motonari
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Patent number: 12104056Abstract: The present invention relates to a polyimide-based film which does not substantially cause a mura or rainbow phenomenon and has excellent visibility, a window cover film including the same, and a display panel including the same.Type: GrantFiled: April 19, 2021Date of Patent: October 1, 2024Assignees: SK Innovation Co., Ltd., SK ie technology Co., Ltd.Inventors: Sun Kug Kim, Hye Ri Kim, Jin Su Park, Hyun Joo Song, Seung Min Jeon
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Patent number: 12098239Abstract: Disclosed are a modified epoxy resin immobilized enzyme, a preparation method therefor and an application thereof. Herein, the preparation method includes the following steps: modifying an epoxy resin, adding a polyethyleneimine to a modified epoxy resin for further modification, and then adding an enzyme to be immobilized and a glutaraldehyde for immobilization, to obtain the modified epoxy resin immobilized enzyme. The epoxy resin is modified, the polyethyleneimine is added to the modified epoxy resin for the further modification, and an aldehyde group in the resin and an amino group in the polyethyleneimine are covalently bound to each enzyme, then it is activated by the bifunctional reagent glutaraldehyde.Type: GrantFiled: January 14, 2020Date of Patent: September 24, 2024Assignee: ASYMCHEM LIFE SCIENCE (TIANJIN) CO., LTD.Inventors: Hao Hong, Gage James, Yi Xiao, Vyasarayani Williams Rajasekar, Yuxia Cui, Na Zhang, Jiadong Zhao, Yanyan Gao