公开(公告)号：US12049440B2

公开(公告)日：2024-07-30

申请号：US17554438

申请日：2021-12-17

Applicant: SI GROUP, INC.

Inventor： Cornelius Haase ,  Ricky Biittig ,  Allyson Staats ,  Philip David Atwood ,  Jim Webb ,  Kelly Chichak

IPC: C07C37/20 ,  B01J31/02 ,  C07C39/15 ,  C08G8/12

CPC classification number: C07C37/20 ,  B01J31/0239 ,  B01J31/0244 ,  C07C39/15 ,  C08G8/12 ,  C07C37/20 ,  C07C39/17

Abstract: This invention relates to a process for preparing a calixarene compound by reacting a phenolic compound and an aldehyde in the presence of at least one nitrogen-containing base as a catalyst to form the calixarene compound. The invention also relates to processes for high-yield, high solid-content production of a calixarene compound, with high selectivity toward a high-purity calix[8]arene compound, without carrying out a recrystallization step.

公开(公告)号：US20240174592A1

公开(公告)日：2024-05-30

申请号：US18148408

申请日：2022-12-29

Applicant: Sennics Co.,Ltd.

Inventor： Jinguo XING ,  Xiangyun GUO ,  Gan LIANG ,  Jiaqiang ZHANG ,  Zhimin TANG

IPC: C07C211/55 ,  B01J21/18 ,  B01J23/42 ,  B01J25/02 ,  B01J31/02 ,  C07C209/26 ,  C08K5/18 ,  C08L7/00

CPC classification number: C07C211/55 ,  B01J21/18 ,  B01J23/42 ,  B01J25/02 ,  B01J31/0239 ,  C07C209/26 ,  C08K5/18 ,  C08L7/00 ,  B01J2231/44 ,  B01J2531/002 ,  B60C1/0016 ,  C07C2601/14 ,  C08L2201/08

Abstract: A polyalkyl p-phenylenediamine antidegradant having a structure represented by Formula I, its intermediates and a preparation method thereof are provided. The polyalkyl p-phenylenediamine antidegradant provides good thermal oxidative aging resistance and UV aging resistance.

公开(公告)号：US11964951B2

公开(公告)日：2024-04-23

申请号：US18206953

申请日：2023-06-07

Applicant: Supernus Pharmaceuticals, Inc.

Inventor： Yanjun Sun ,  Bhaskara Rao Nallaganchu ,  Gary L. Olson

IPC: C07D265/30 ,  B01J31/02

CPC classification number: C07D265/30 ,  B01J31/0239 ,  B01J2231/347 ,  B01J2231/348 ,  B01J2531/002 ,  C07B2200/07

Abstract: Provided here are methods of making derivatives and prodrugs of substituted morpholines or pharmaceutically acceptable salts thereof. Further provided are methods of making derivatives and prodrugs of substituted morpholines having the following chemical structure:

公开(公告)号：US11760707B2

公开(公告)日：2023-09-19

申请号：US17095777

申请日：2020-11-12

Applicant: Fujian Yongjing Technology Co., Ltd

Inventor： Changyue Zhou ,  Yong Wang

IPC: C07C17/281 ,  C07C17/25 ,  B01J23/26 ,  B01J27/12 ,  B01J31/02 ,  C07C17/269

CPC classification number: C07C17/281 ,  B01J23/26 ,  B01J27/12 ,  B01J31/0239 ,  C07C17/25 ,  C07C17/269 ,  B01J2531/985 ,  C07C2523/745 ,  C07C2523/843 ,  C07C2523/86 ,  C07C17/269 ,  C07C19/10 ,  C07C17/25 ,  C07C21/18 ,  C07C17/269 ,  C07C21/18

Abstract: The present invention pertains to a novel process of manufacturing the compound 2,3,3,3-tetrafluoropropene (1234yf). The compound 1234yf is the newest refrigerant with zero OPD (Ozone Depleting Potential) and zero GWP (Global Warming Potential). Thus, the invention relates to a process, involving a carbene generation route, for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), of the compound 243db (2,3-dichloro-1,1,1-trifluoropropane), and optionally of the compound 2-chloro-1,1,1-trifluoropropene (1233xf) via carbene route and compound 243db (2,3-dichloro-1,1,1-trifluoropropane). The invention also relates to a process for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), wherein the compound 243db (2,3-dichloro-1,1,1-trifluoropropane) serves as a starting material, for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf). Further, the invention relates to a process for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), and of the compound 243db (2,3-dichloro-1,1,1-trifluoropropane), the initial starting materials are selected from the group consisting of com-pound 123 (2,2-dichloro-1,1,1-trifluoroethane), compound 124 (2-chloro-1,1,1,2-tetrafluoroethane), and compound 125 (pentafluoroethane).

公开(公告)号：US20230286936A1

公开(公告)日：2023-09-14

申请号：US17694287

申请日：2022-03-14

Applicant: Baker Hughes Oilfield Operations LLC

Inventor： Analette Carrasco ,  Jerry J. Weers ,  Catherine C. Blackwell ,  Sankaran Murugesan ,  Xiaofeng Wang ,  Douglas Nugent ,  Corby A. Roberts

IPC: C07D317/38 ,  B01J31/02

CPC classification number: C07D317/38 ,  B01J31/0239 ,  C07C2527/24

Abstract: A method for direct synthesis of cyclic carbonates is achieved by reacting at least one epoxide with carbon dioxide in the presence of a choline catalyst, such as choline chloride, under mild conditions such as a temperature between about 25° C. to 150° C. and a pressure of from about atmospheric to 75 psi (0.52 MPa), in a cyclic carbonate solvent. The choline catalyst may be the only catalyst used, and a co-catalyst or hydrogen bond donor is not necessary. The concentration of choline catalyst in the solvent ranges from about 0.5 mol % to about 10 mol %, based on the epoxide.

公开(公告)号：US20190248721A1

公开(公告)日：2019-08-15

申请号：US16271499

申请日：2019-02-08

Applicant: SI GROUP, INC.

Inventor： Cornelius HAASE ,  Ricky BIITTIG ,  Allyson STAATS ,  Philip David ATWOOD ,  Jim WEBB ,  Kelly CHICHAK

IPC: C07C37/20 ,  C07C39/15 ,  B01J31/02

CPC classification number: C07C37/20 ,  B01J31/0239 ,  B01J31/0244 ,  C07C39/15 ,  C08G8/12 ,  C07C39/17

Abstract: This invention relates to a process for preparing a calixarene compound by reacting a phenolic compound and an aldehyde in the presence of at least one nitrogen-containing base as a catalyst to form the calixarene compound. The invention also relates to processes for high-yield, high solid-content production of a calixarene compound, with high selectivity toward a high-purity calix[8]arene compound, without carrying out a recrystallization step.

公开(公告)号：US20180237586A1

公开(公告)日：2018-08-23

申请号：US15754319

申请日：2016-09-14

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Taeko NAKANO ,  Tadashi KISEN ,  Makoto OKAMOTO

IPC: C08G65/12 ,  C10M145/24

CPC classification number: C08G65/12 ,  B01J31/0239 ,  B01J31/0268 ,  B01J31/143 ,  C10M145/24 ,  C10M145/36 ,  C10M2209/104 ,  C10M2209/105 ,  C10N2220/021 ,  C10N2220/022 ,  C10N2230/02 ,  C10N2230/41 ,  C10N2240/02 ,  C10N2240/04 ,  C10N2240/10 ,  C10N2240/30 ,  C10M2209/108

Abstract: In the method for producing a polyether compound of the present invention, an oxirane monomer is polymerized with a trialkylaluminum and a non-halogen-containing onium salt to produce a polyether compound.

公开(公告)号：US10052620B2

公开(公告)日：2018-08-21

申请号：US15102842

申请日：2014-12-04

Applicant: Chuanhua He ,  Benjamin Fonfe ,  Harald Jakob ,  Xiangyu Yang

Inventor： Chuanhua He ,  Benjamin Fonfe ,  Harald Jakob ,  Xiangyu Yang

IPC: C07C309/00 ,  B01J31/02 ,  B01J37/04 ,  B01J37/03 ,  C07C303/16 ,  C07C319/24 ,  B01J37/02

CPC classification number: B01J31/0239 ,  B01J23/22 ,  B01J23/8472 ,  B01J37/0236 ,  B01J37/031 ,  B01J37/04 ,  B01J2231/70 ,  B01J2531/004 ,  C07C303/16 ,  C07C319/24 ,  C07C309/04 ,  C07C321/14

Abstract: The present invention relates to a catalyst for oxidation reactions, particularly for oxidation of mercaptan dialkyldisulfides and/or dialklypolysulfides with oxygen to alkanesulfonic acids.

公开(公告)号：US20180133704A1

公开(公告)日：2018-05-17

申请号：US15102842

申请日：2014-12-04

Applicant: Chuanhua HE ,  Benjamin FONFE ,  Harald JAKOB ,  Xiangyu YANG

Inventor： Chuanhua HE ,  Benjamin FONFE ,  Harald JAKOB ,  Xiangyu YANG

IPC: B01J31/02 ,  B01J37/04 ,  B01J37/03 ,  B01J37/02 ,  C07C303/16 ,  C07C319/24

CPC classification number: B01J31/0239 ,  B01J23/22 ,  B01J23/8472 ,  B01J37/0236 ,  B01J37/031 ,  B01J37/04 ,  B01J2231/70 ,  B01J2531/004 ,  C07C303/16 ,  C07C319/24 ,  C07C309/04 ,  C07C321/14

Abstract: The present invention relates to a catalyst for oxidation reactions, particularly for oxidation of mercaptan dialkyldisulfides and/or dialklypolysulfides with oxygen to alkanesulfonic acids.

公开(公告)号：US09944574B2

公开(公告)日：2018-04-17

申请号：US14409448

申请日：2014-05-23

Applicant: TIANJIN UNIVERSITY

Inventor： Jijun Zou ,  Xiangwen Zhang ,  Li Wang ,  Qingfa Wang

IPC: B01J19/12 ,  B01J35/00 ,  C07C5/22 ,  B01J31/02 ,  B01J31/34 ,  B01J31/36 ,  B01J31/38 ,  B01J31/26

CPC classification number: C07C5/2266 ,  B01J19/123 ,  B01J31/0208 ,  B01J31/0237 ,  B01J31/0239 ,  B01J31/0271 ,  B01J31/26 ,  B01J31/34 ,  B01J31/36 ,  B01J31/38 ,  B01J35/004 ,  C07C5/2213 ,  C07C5/222 ,  C07C2521/06 ,  C07C2523/02 ,  C07C2523/06 ,  C07C2523/20 ,  C07C2523/30 ,  C07C2531/02 ,  C07C2531/26 ,  C07C2531/34 ,  C07C2531/36 ,  C07C2531/38 ,  C07C2603/86 ,  Y02P20/582 ,  C07C13/68

Abstract: The invention discloses a continuous process for producing high-pure quadricyclane, in which “a reaction-rectification integral process” or “a reaction followed by rectification process” may be employed. The two processes both use a novel composite catalyst which is obtained by loading an organic photo-sensitizer on a solid photocatalyst, and the composite catalyst has a high activity and a good stability. In the reaction-rectification integral process, the composite catalyst is used by being blended with rectification fillers or covering the rectification fillers, so as to achieve the integration of the reaction and the rectification. In the reaction followed by rectification process, the composite catalyst and the rectification fillers are placed separately from each other. The two processes achieve a relatively short residence time of reactants, produce highly-pure quadricyclane, and reduce the formation of cokes.