公开(公告)号：US11225450B2

公开(公告)日：2022-01-18

申请号：US17087422

申请日：2020-11-02

Applicant: SI GROUP, INC.

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

IPC: C07C37/20 ,  C08G8/00 ,  B01J31/02 ,  C07C39/15 ,  C08G8/12

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：US10781154B2

公开(公告)日：2020-09-22

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 ,  C08G8/00 ,  B01J31/02 ,  C07C39/15 ,  C08G8/12

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：US20190016660A1

公开(公告)日：2019-01-17

申请号：US16031844

申请日：2018-07-10

Applicant: SI GROUP, INC.

Inventor： Milan Knezevic ,  Cornelius Haase ,  Joseph Zampella ,  Scott Smith ,  Todd Makenzie

IPC: C07C51/353 ,  C07C65/10

Abstract: This invention relates to a process for preparing an alkylsalicylic acid. The process comprises reacting salicylic acid with an olefin having at least four carbon atoms at a temperature ranging from about 50° C. to about 200° C. in the presence of an arylsulfonic acid-containing catalyst (such as para-toluene sulfonic acid), to produce an alkylsalicylic acid. The resulting alkylsalicylic acid has various applications such as a food preservative, an oil field chemical for oil recovery, and a component in a color toner agent for electrophotography.

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：US11072572B2

公开(公告)日：2021-07-27

申请号：US16992747

申请日：2020-08-13

Applicant: SI GROUP, INC.

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

IPC: C07C37/00 ,  C07C39/00 ,  C07C37/20 ,  B01J31/02 ,  C07C39/15 ,  C08G8/12

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：US20180208702A1

公开(公告)日：2018-07-26

申请号：US15879270

申请日：2018-01-24

Applicant: SI GROUP, INC.

Inventor： Matthew Meketa ,  Cornelius Haase ,  Robert Cable ,  Ricky Biittig ,  Allyson Staats

IPC: C08G8/36 ,  C08G8/12 ,  B01D17/04

CPC classification number: C08G8/36 ,  B01D17/047 ,  C08G8/12 ,  C08L61/14 ,  C10G33/04 ,  C10G2300/1033

Abstract: This invention relates to an alkoxylated calixarene resin comprising one or more modified calixarene alkoxylate compounds. The invention also relates to a process for preparing a solubilized alkoxylated calixarene resin comprising reacting a phenolic resin mixture, comprising linear phenolic resins and calixarene compounds having phenolic hydroxyl groups, with one or more epoxide-containing compounds to alkoxylate one or more of the phenolic hydroxyl groups of the calixarene compounds to form a solubilized phenolic resin mixture, and reacting the solubilized phenolic resin mixture with one or more alkylene oxides.