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Patent Agency Ranking
1.发明申请公开(公告)号：US20190330380A1
公开(公告)日：2019-10-31
申请号：US16465256
申请日：2016-12-08
Applicant: Eastman Chemical Company
Inventor： Robert Lin , Glenn Lewis Shoaf , Venkateswarlu Bhamidi , Shane Kipley Kirk , Marty L. Neal , Steven J. Adams
Abstract: Processes and systems for separating a mixture including at least one fluorocarboxylic acid and at least one carboxylic acid are provided herein. In some aspects, the present invention relates to processes and systems configured to provide a purified stream of fluorocarboxylic acid and a purified stream of carboxylic acid, even when the mixture includes an azeotrope, a pinch point, and/or a eutectic mixture of the fluorocarboxylic acid and carboxylic acid. Systems as described herein may include, for example, at least one distillation zone and at least one fractional crystallization zone arranged in series and configured to provide highly purified product streams having compositions heretofore unachievable by conventional means.
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公开(公告)号：US10011485B2
公开(公告)日：2018-07-03
申请号：US15440056
申请日：2017-02-23
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： Scott Donald Barnicki , Robert Thomas Hembre , Elaine Beatrice MacKenzie , Joy Lynn Laningham , Michael Richard Laningham , Shane Kipley Kirk , Larry Wayne Blair , Sumit Chakraborty , Venkateswarlu Bhamidi , Guoxiong Hua , John Derek Woollins
IPC: C01B17/02 , C01B17/12 , C07D341/00
CPC classification number: C01B17/0253 , C01B17/0243 , C01B17/12 , C07D341/00
Abstract: The present invention relates to a method for the manufacture of cyclododecasulfur, a cyclic sulfur allotrope wherein the number of sulfur (S) atoms in the allotrope's homocyclic ring is 12. The method includes reacting a metallasulfur derivative with an oxidizing agent in a reaction zone to form a cyclododecasulfur-containing reaction mixture.
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公开(公告)号：US11059722B2
公开(公告)日：2021-07-13
申请号：US16807671
申请日：2020-03-03
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： Scott Donald Barnicki , Robert Thomas Hembre , Elaine Beatrice Mackenzie , Joy Lynn Laningham , Michael Richard Laningham , Shane Kipley Kirk , Larry Wayne Blair , Sumit Chakraborty , Venkateswarlu Bhamidi , Guoxiong Hua , John Derek Woollins
IPC: C01B17/02 , C01B17/12 , C07D341/00
Abstract: The present invention relates to a method for the manufacture of cyclododecasulfur, a cyclic sulfur allotrope wherein the number of sulfur (S) atoms in the allotrope's homocyclic ring is 12. The method includes reacting a metallasulfur derivative with an oxidizing agent in a reaction zone to form a cyclododecasulfur-containing reaction mixture.
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公开(公告)号：US10000380B2
公开(公告)日：2018-06-19
申请号：US15440007
申请日：2017-02-23
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： Scott Donald Barnicki , Robert Thomas Hembre , Michael Richard Laningham , Sumit Chakraborty , Venkateswarlu Bhamidi
IPC: C01B17/12 , C07D341/00 , C01B17/02
CPC classification number: C01B17/0253 , C01B17/0243 , C01B17/12 , C07D341/00
Abstract: The present invention relates to a method for the manufacture of polymeric sulfur. The method includes reacting a metallasulfur derivative with an oxidizing agent to form polymeric sulfur.
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公开(公告)号：US20160060196A1
公开(公告)日：2016-03-03
申请号：US14835214
申请日：2015-08-25
Applicant: Eastman Chemical Company
Inventor： Venkateswarlu Bhamidi , Kyle Irion , Michael Joseph Stoltz , Richard S. Lott
CPC classification number: C07C37/84 , B65B63/08 , C07C39/08 , G03C7/39216 , G03C2007/3922
Abstract: Crystallized hydroquinone particles and methods for making the same are provided. Cooling profiles applied during crystallization of the hydroquinone from solution may be optimized to provide crystallized particles having suitable properties and that exhibit reduced agglomeration tendencies, even after long periods of time and/or transportation over long distances.
Abstract translation: 提供了结晶氢醌颗粒及其制备方法。 可以优化在从溶液中结晶氢醌期间施加的冷却曲线，以提供具有合适性质的结晶颗粒，并且即使经过长时间和/或长距离运输也表现出降低的聚集倾向。
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