Patents Assigned to Sachem, Inc.
  • Publication number: 20250090435
    Abstract: Various preservatives and compositions incorporating these preservatives as well as various methods of using these preservatives and compositions are described. For example, various compositions that include cosmetic and pharmaceutical compositions containing a preservative such as 3-(heptyloxy)propane-1,2-diol and one or more other ingredients (e.g., natural ingredients) are described.
    Type: Application
    Filed: July 29, 2022
    Publication date: March 20, 2025
    Applicant: SACHEM, INC.
    Inventors: Helénè Eeckman, Tim Engel, Cedrick Mahieux, Ari Kar, Robert York
  • Patent number: 12180328
    Abstract: 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: Grant
    Filed: May 4, 2022
    Date of Patent: December 31, 2024
    Assignee: SACHEM, INC.
    Inventors: Barry L. Haymore, Sara S. Moghaddam, Charles B. Little, Ari K. Kar
  • Patent number: 11884753
    Abstract: A compound having Formula (I) or Formula (II): or a mixture thereof, in which R is —H; —CH3; —CH—(CH3)2; —CH2—CH—(CH3)2; —CH—(CH3)—CH2—CH3; —CH2—(C6H5); —CH2—(3-indole); —CH2—CH2—S—CH3; —CH2—OH; —CH—(CH3)—OH; —CH2—SH; —CH2-(p-C6H4OH); —CH2—CH2—CH2—CH2—NH2; —CH2—CO—NH2; —CH2—CH2—CO—NH2; —CH2—CH2—COOH; —CH2—COOH; or —CH2—CH2—NH—C?NH2(NH2); and X is a suitable non-interfering anion, a process for making the compound having Formula (I) or Formula (II), and a process for reacting the compound having Formula (I) or Formula (II) or a mixture thereof with a (poly)saccharide to form a cationized (poly)saccharide.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: January 30, 2024
    Assignee: SACHEM, INC.
    Inventor: Tim Engel
  • Patent number: 11201321
    Abstract: Disclosed is a process for coating onto a substrate, including preparing a precursor having a general formula Qm/nMOxFy by a reaction M(OH)x+yHF+m/nQ(OH)n?Qn+m/n(MOxFy)m?, wherein Q is an onium ion, selected from quaternary alkyl ammonium, quaternary alkyl phosphonium and trialkylsulfonium; M is a metal capable of forming an oxofluorometallate, where M may further comprise one or more additional metal, metalloid, and one or more of phosphorus (P), sulfur (S) and selenium (Se), iodine (I), and arsenic (As) or a combination thereof, and x>0, y>0, m?1, n?1; combining the precursor with a lithium ion source and with the substrate, and mixing to form a coating composition comprising a lithium oxofluorometallate having a general formula LimMOxFy on the substrate. Further disclosed is a core-shell electrode active material including a core capable of intercalating and deintercalating lithium coated with the lithium oxofluorometallate having the general formula LimMOxFy.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: December 14, 2021
    Assignee: SACHEM, INC.
    Inventors: Jianjun Hao, James C. Knight
  • Patent number: 10843929
    Abstract: A process for making SSZ-39 zeolite employing at least one organic structure-directing agent (OSDA), in which a substantial quantity of the at least one OSDA, which otherwise would be required to form a zeolite such as SSZ-39, is replaced by at least one quaternary ammonium or phosphonium compound (PFA) or a mixture of two or more thereof that is not itself an OSDA for making SSZ-39. A composition including at least one oxide of silicon; faujasite; at least one organic structure directing agent (OSDA) for making SSZ-39 zeolite; at least one PFA that is not an OSDA for making SSZ-39 zeolite; an alkali metal hydroxide; and water.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: November 24, 2020
    Assignee: SACHEM, Inc.
    Inventors: Roger Moulton, Charles B. Little
  • Patent number: 10710891
    Abstract: An aluminosilicate zeolite comprising at least 90% phase pure AEI zeolite crystals, the crystals having a plate-shaped morphology. In embodiments, at least 50% of the crystals have at least one ratio in at least one pair of dimensions in the range from 3:1 to 20:1, and thickness of 30-100 nm. A process of making the AEI zeolite comprising reacting an oxide of silicon, faujasite, a quaternary ammonium compound comprising 2,4,4,6-tetramethylmorpholinium cation, alkali metal hydroxide and water at at least 100 C to form crystals of a zeolite having an AEI framework. A crystalline AEI zeolite having pores comprising a 2,4,4,6-tetramethylmorpholinium, cation. The zeolite may comprise at least 90% phase pure AEI zeolite with the 2,4,4,6-tetramethylmorpholinium cation within pores of the zeolite. In some embodiments the zeolite comprises crystals having a plate-shaped morphology and with the 2,4,4,6-tetramethylmorpholinium cation within pores of the AEI zeolite.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: July 14, 2020
    Assignee: SACHEM, INC.
    Inventors: Roger Moulton, Charles B. Little
  • Patent number: 10297465
    Abstract: The present invention provides a process for selectively etching molybdenum or titanium relative to a oxide semiconductor film, including providing a substrate comprising a layer of oxide semiconductor and a layer comprising molybdenum or titanium on the layer of oxide semiconductor; preparing the substrate by applying a photoresist layer over the layer comprising molybdenum or titanium, and then patterning and developing the photoresist layer to form an exposed portion of the layer comprising molybdenum or titanium; providing a composition comprising ammonia or ammonium hydroxide, a quaternary ammonium hydroxide and a peroxide; and applying the composition to the exposed portion for a time sufficient to etch and remove the exposed portion of the layer comprising molybdenum or titanium, wherein the etching selectively removes the molybdenum or titanium relative to the oxide semiconductor.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: May 21, 2019
    Assignee: SACHEM, Inc.
    Inventors: Paul Vermeulen, Craig Allen
  • Patent number: 10138131
    Abstract: The present invention relates to structure directing agents for synthesis of crystalline materials generally known as zeolites, by use of an enhanced content of the trans isomer of a 3,5-dimethyl-N,N-dimethylpiperidinium cation together with the conventional oxides used to form zeolites.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: November 27, 2018
    Assignee: SACHEM, INC.
    Inventor: Roger Moulton
  • Patent number: 9981879
    Abstract: A process for producing a ceramic material including providing an aqueous solution comprising at least one transition metal ion and one or more further transition metal ion and/or one or more additional ion; adding to the aqueous solution a quaternary ammonium or phosphonium hydroxide comprising at least one alkyl group containing about 8 or more carbon atoms to form a combined aqueous solution; mixing the combined aqueous solution to form a gel; transferring the formed gel to a furnace; and heating the formed gel to a temperature sufficient for a time sufficient to calcine the gel to form a solid ceramic material. The process in accordance with the present invention provides an improved ceramic material, in some embodiments of which is suitable for use in the cathode material of a lithium ion battery.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: May 29, 2018
    Assignee: SACHEM, Inc.
    Inventor: Jianjun Hao
  • Patent number: 9944853
    Abstract: A composition including a quaternary onium hydroxide in a non-aqueous solvent, wherein the quaternary ammonium hydroxide has a concentration in the range from about 5% by weight to about 50% by weight of the composition; and imidazolidine-2,4-dione, wherein the imidazolidine-2,4-dione has a concentration in the range from about 10 to about 5000 parts per million of the composition.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: April 17, 2018
    Assignee: SACHEM, Inc.
    Inventors: Tim Engel, Alfred Van Lier
  • Patent number: 9650595
    Abstract: A composition including (a) a quaternary ammonium hydroxide having a general formula (I): as defined herein, and (b) a dipolar aprotic solvent substantially free of water.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: May 16, 2017
    Assignee: Sachem, Inc.
    Inventor: Charles B. Little
  • Patent number: 9634321
    Abstract: The present invention provides a process for depositing an oxide coating on an inorganic substrate, including providing an aqueous composition containing a tetraalkylammonium polyoxoanion and hydrogen peroxide; contacting the aqueous composition with an inorganic substrate for a time sufficient to deposit a hydroxide derived from the polyoxoanion on surfaces of the inorganic substrate to form an initially coated inorganic substrate; and heating the initially coated inorganic substrate for a time sufficient to convert the hydroxide to an oxide to form on the inorganic substrate an oxide coating derived from the polyoxoanion. The inorganic substrate may be a ceramic material or a semiconductor material, a glass or other dielectric material, and the ceramic material may be a lithium ion battery cathode material.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: April 25, 2017
    Assignee: Sachem, Inc.
    Inventors: Craig S. Allen, Jianjun Hao
  • Patent number: 9634318
    Abstract: The present invention provides a process for depositing an oxide coating on an inorganic substrate, including providing an aqueous composition containing a tetraalkylammonium polyoxoanion and lithium hydroxide; contacting the aqueous composition with an inorganic substrate for a time sufficient to deposit a lithium polyoxoanion on surfaces of the inorganic substrate to form an initially coated inorganic substrate; and heating the initially coated inorganic substrate for a time sufficient to convert the lithium polyoxoanion to an oxide to form on the inorganic substrate an oxide coating derived from the polyoxoanion. The inorganic substrate may be a ceramic material or a semiconductor material, a glass or other dielectric material, and the ceramic material may be a lithium ion battery cathode material.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: April 25, 2017
    Assignee: Sachem, Inc.
    Inventors: Jianjun Hao, Craig S. Allen
  • Publication number: 20160028079
    Abstract: The present invention provides a process for depositing an oxide coating on an inorganic substrate, including providing an aqueous composition containing a tetraalkylammonium polyoxoanion and hydrogen peroxide; contacting the aqueous composition with an inorganic substrate for a time sufficient to deposit a hydroxide derived from the polyoxoanion on surfaces of the inorganic substrate to form an initially coated inorganic substrate; and heating the initially coated inorganic substrate for a time sufficient to convert the hydroxide to an oxide to form on the inorganic substrate an oxide coating derived from the polyoxoanion. The inorganic substrate may be a ceramic material or a semiconductor material, a glass or other dielectric material, and the ceramic material may be a lithium ion battery cathode material.
    Type: Application
    Filed: March 12, 2013
    Publication date: January 28, 2016
    Applicant: SACHEM, INC.
    Inventors: Craig S. ALLEN, Jianjun HAO
  • Publication number: 20150380727
    Abstract: The present invention provides a process for depositing an oxide coating on an inorganic substrate, including providing an aqueous composition containing a tetraalkylammonium polyoxoanion and lithium hydroxide; contacting the aqueous composition with an inorganic substrate for a time sufficient to deposit a lithium polyoxoanion on surfaces of the inorganic substrate to form an initially coated inorganic substrate; and heating the initially coated inorganic substrate for a time sufficient to convert the lithium polyoxoanion to an oxide to form on the inorganic substrate an oxide coating derived from the polyoxoanion. The inorganic substrate may be a ceramic material or a semiconductor material, a glass or other dielectric material, and the ceramic material may be a lithium ion battery cathode material.
    Type: Application
    Filed: March 12, 2013
    Publication date: December 31, 2015
    Applicant: SACHEM, INC.
    Inventors: Jianjun HAO, Craig S. ALLEN
  • Publication number: 20150368163
    Abstract: A process for producing a ceramic material including providing an aqueous solution comprising at least one transition metal ion and one or more further transition metal ion and/or one or more additional ion; adding to the aqueous solution a quaternary ammonium or phosphonium hydroxide comprising at least one alkyl group containing about 8 or more carbon atoms to form a combined aqueous solution; mixing the combined aqueous solution to form a gel; transferring the formed gel to a furnace; and heating the formed gel to a temperature sufficient for a time sufficient to calcine the gel to form a solid ceramic material. The process in accordance with the present invention provides an improved ceramic material, in some embodiments of which is suitable for use in the cathode material of a lithium ion battery.
    Type: Application
    Filed: February 14, 2013
    Publication date: December 24, 2015
    Applicant: SACHEM, INC.
    Inventor: Jianjun HAO
  • Patent number: 9120846
    Abstract: A process for separating organic compounds from a mixture by reverse-phase displacement chromatography, including providing a hydrophobic stationary phase; applying to the hydrophobic stationary phase a mixture comprising organic compounds to be separated; displacing the organic compounds from the hydrophobic stationary phase by applying thereto an aqueous composition comprising a non-surface active hydrophobic neutral zwitterionic displacer molecule and optionally an organic solvent; and collecting a plurality of fractions eluted from the hydrophobic stationary phase containing the separated organic compounds; in which the non-surface active hydrophobic neutral zwitterionic displacer molecule comprises a hydrophobic zwitterion having the general formula, as defined in the disclosure: [CM-R*—CM?].
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: September 1, 2015
    Assignee: Sachem, Inc.
    Inventor: Barry L. Haymore
  • Patent number: 9115050
    Abstract: A process for recovering an onium hydroxide from a composition containing onium ions and a process residue, including providing a composition containing onium ions and a process residue; adding a quantity of a surfactant to the composition to obtain a surfactant-modified composition; providing a cation exchange media; collecting the onium ions by applying the surfactant-modified composition to the cation exchange media wherein the onium ions become bound to and retained by the cation exchange media and the process residue and the surfactant do not become bound to the cation exchange media and are substantially not retained by the cation exchange media; and recovering the onium ions from the cation exchange media as an onium hydroxide by applying a cation-containing hydroxide composition to the cation exchange media.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: August 25, 2015
    Assignee: Sachem, Inc.
    Inventors: Sharon Wong, Ryuichi Otogawa
  • Patent number: 9090859
    Abstract: A method of removing a residue from a surface, including applying to the surface a composition including (a) a quaternary ammonium hydroxide having a general formula (I): as defined herein, and (b) a dipolar aprotic solvent substantially free of water; and removing at least a substantial portion of the residue from the surface.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: July 28, 2015
    Assignee: Sachem, Inc.
    Inventor: Charles B. Little
  • Publication number: 20150183717
    Abstract: A process for recovering an onium hydroxide from a composition containing onium ions and a process residue, including providing a composition containing onium ions and a process residue; adding a quantity of a surfactant to the composition to obtain a surfactant-modified composition; providing a cation exchange media; collecting the onium ions by applying the surfactant-modified composition to the cation exchange media wherein the onium ions become bound to and retained by the cation exchange media and the process residue and the surfactant do not become bound to the cation exchange media and are substantially not retained by the cation exchange media; and recovering the onium ions from the cation exchange media as an onium hydroxide by applying a cation-containing hydroxide composition to the cation exchange media.
    Type: Application
    Filed: December 30, 2013
    Publication date: July 2, 2015
    Applicant: SACHEM, INC.
    Inventors: Sharon WONG, Ryuichi OTOGAWA