Featured patents

Crystallization Unit for Acrylic Acid and Method for Crystallization of Acrylic Acid Using the Same
US 08846977 B2, Sept. 30, 2014, Purification or recovery per se, Koji Ueno et al. / Nippon Shokubai Co. Ltd. (Osaka, JP)
A method for crystallization of acrylic acid comprising the following steps:…

Peroxycarboxylic Acid Compositions Suitable for Inline Optical or Conductivity Monitoring
US 08822719 B1, Sept. 2, 2014, Percarboxylic acids or salts thereof-O OH group, wherein the hydrogen may be replaced by a group IA or IIA light metal, or by substituted or unsubstituted ammonium), David D. McSherry et al. / Ecolab USA Inc. (Saint Paul, US)
A method for detecting a concentration of peroxycarboxylic acid and/or hydrogen…

Method of Producing Purified Optically Acitve 4-Amino-3-(Substituted Phenyl)butanoic Acid Compound
US 08791295 B2, July 29, 2014, In same chain as carboxyl, or salt thereof, Masahiro Takeda et al. / Sumitomo Chemical Company, Limited (Tokyo, JP)
A method of producing a purified optically active 4-amino-3-(substituted…

Method for Preparing Ramalin
US 08865934 B2, Oct. 21, 2014, Ureido, guanido, or hydrazine, Il Chan Kim et al. / Korea Ocean Research and Development Institute (Incheon, KR)
A method for synthesizing ramalin of formula 1, a salt thereof, a solvate…

Method of Producing Acid Halide and Acid Halide
US 08729302 B2, May 20, 2014, Carboxylic halides-halo group), Akiyoshi Goto / FUJIFILM Corporation (Tokyo, JP)
A compound represented by the following Formula (I-1), (I-7) or (I-29):…

Processes for Producing Acrylic Acids and Acrylates
US 08658823 B2, Feb. 25, 2014, Purification or recovery per se, Ilias Kotsianis et al. / Celanese International Corporation (Dallas, US)
A process for producing an acrylate product, the process comprising the steps of:…

Method of Producing Phthaloyl Dichloride Compound, Catalyst for Use in the Method, and Method of Forming the Catalyst
US 08642805 B2, Feb. 4, 2014, Plural -C(=O)-halo groups bonded directly to the same benzene ring, Yoshikazu Kimura et al. / Iharanikkei Chemical Industry Co., Ltd. (Shizuoka, JP)
A method of producing a phthaloyl dichloride compound, the method comprising:…

Method for Preparing Succinic Acid
US 08546611 B2, Oct. 1, 2013, Preparation by hydrogenation, Mikhail Lvovich Uchitel et al.
A method for preparing succinic acid, comprising:…

Production of Adipic Acid and Derivatives From Carbohydrate-Containing Materials
US 08501989 B2, Aug. 6, 2013, Polycarboxylic, Eric L. Dias et al. / Rennovia, Inc. (Menlo Park, US)
A process for preparing adipic acid comprising reacting a tetrahydrofuranic…

Carboxylic Acid Production Process Employing Solvent From Esterification of Lignocellulosic Material
US 08455680 B2, June 4, 2013, Air, oxygen, or ozone oxidant, Wout Fornara et al. / Eastman Chemical Company (Kingsport, US)
A process for producing an aromatic carboxylic acid, said process comprising…

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