公开(公告)号：US10808076B2

公开(公告)日：2020-10-20

申请号：US15919770

申请日：2018-03-13

申请人： Andrey Bagreev ,  George E. Hicks

发明人： Andrey Bagreev ,  George E. Hicks

IPC分类号： C08G65/30 ,  C08G65/26 ,  B01J20/28 ,  B01J20/10 ,  B01J20/22 ,  B01J20/30

摘要： A method of purifying a crude polyalkylene oxide polymer that contains a catalyst, such as potassium hydroxide. The method comprises contacting the crude polyalkylene oxide polymer with a composition comprising an acid functionalized silicate, such as an acid functionalized magnesium silicate adsorbent containing at least one acid in an amount effective to remove the catalyst from the polyalkylene oxide polymer. Such a method provides for an improved removal of the catalyst from the polyalkylene oxide polymer.

公开(公告)号：US20200087452A1

公开(公告)日：2020-03-19

申请号：US16467353

申请日：2017-12-04

申请人： COVESTRO DEUTSCHLAND AG

发明人： Chenxi ZHANG ,  Erika ZHU ,  Liang XUE

IPC分类号： C08G65/30 ,  C08G18/48 ,  C08G18/76 ,  C08G18/32 ,  C08G18/66

摘要： The present invention relates to a method for the preparation of a low odor polyether polyol, including: a) providing a basic polyether polyol which comprises one or more aldehyde compounds in an amount of lower than 2 wt. %, based on the amount of said basic polyether polyol as 100 wt. %; b) adding to said basic polyether polyol an aldehyde trapping agent and said aldehyde trapping agent is reacted with said one or more aldehyde compounds to remove said one or more aldehyde compounds, wherein said aldehyde trapping agent is in an amount of 0.1 to 5 wt. %, based on the weight of said basic polyether polyol as 100 wt. %; and c) removing the excess aldehyde trapping agent to obtain said low odor polyether polyol. The present invention also relates to the low odor polyether polyol prepared by said method.

公开(公告)号：US20190309120A1

公开(公告)日：2019-10-10

申请号：US16470306

申请日：2017-12-28

申请人： SANYO CHEMICAL INDUSTRIES, LTD.

发明人： Erika NOBUKUNI ,  Takashi YABUTA

IPC分类号： C08G18/48 ,  C08G65/26 ,  C08G65/30

摘要： The present invention aims to provide a method of producing a polyether polyol having a low aldehyde content, the method including simpler steps; and a method of producing polyurethane foam having a reduced amount of aldehyde volatilization. The present invention provides a method of producing a polyether polyol (F) including step (1) of obtaining a crude polyether polyol composition (D2) having a pH higher than 5.0 by contact of a crude polyether polyol composition (D1) containing a polyether polyol (A) with an acid catalyst (B) in the presence of water, the polyether polyol (A) being obtainable by ring-opening polymerization of an alkylene oxide with an active hydrogen compound; and step (2) of removing a volatile component containing an aldehyde (C) after step (1).

公开(公告)号：US10301427B2

公开(公告)日：2019-05-28

申请号：US15863156

申请日：2018-01-05

申请人： Evonik Degussa GmbH

发明人： Matthias Lobert ,  Volker Zellmer ,  Anja Brösgen ,  Thomas Reibold

IPC分类号： C08G65/324 ,  C08G65/26 ,  C08G65/30 ,  C08G65/336 ,  C08G65/337 ,  C08L71/02

摘要： Described are a process for producing hydrosilylable polyoxyalkylene ethers, comprising the steps of (1) alkoxylation of at least one terminally unsaturated alcohol with alkylene oxides to afford a polyoxyalkylene ether, (2) etherification of the polyoxyalkylene ether from step (1) and (3) neutralization of the product from step (2) under buffered conditions, and hydrosilylable polyoxyalkylene ether mixtures.

公开(公告)号：US20190077910A1

公开(公告)日：2019-03-14

申请号：US16185920

申请日：2018-11-09

申请人： Zeon Chemicals L.P.

发明人： Kentaro TSUBATA

IPC分类号： C08G65/24 ,  C08G65/30 ,  C08J3/24 ,  C08L71/03 ,  C08L7/00

摘要： A copolymer comprising about 50 to about 80 mol % alkylene oxide, about 5 to about 50 mol % halo epoxide, and 0 to about 15 mol % diene-epoxide. The copolymer has a water-soluble amount of less than 10 wt %. In some embodiments, the volume resistivity of a semi-conductive composition made from the copolymer is between about 1.0*105 about to 3.5*107 ohms*cm.

公开(公告)号：US20180353875A1

公开(公告)日：2018-12-13

申请号：US16060043

申请日：2016-12-12

申请人： BASF SE

发明人： Pedro Sa Gomes ,  Bastiaan Bram Pieter Staal ,  Felicitas Guth ,  Nigel A. Langley

IPC分类号： B01D15/34 ,  B01D15/18 ,  C08G65/30 ,  C08G65/08

CPC分类号： B01D15/34 ,  B01D15/1807 ,  B01D15/1821 ,  B01D15/1871 ,  B01D15/1892 ,  C08G65/08 ,  C08G65/30 ,  C08G2650/58

摘要： A process for purification of polyether block copolymers comprising polyoxyethylene and polyoxypropylene moieties using sequential multi-column size exclusion chromatography apparatus operated as a counter current moving bed wherein a process cycle comprises the steps of.

公开(公告)号：US10150837B2

公开(公告)日：2018-12-11

申请号：US15190841

申请日：2016-06-23

申请人： Covestro LLC

发明人： Jenna L. Caputo ,  Matthew S. Otto ,  Mark A. Christman, II ,  Daniel R. Wagner

IPC分类号： C08G65/30 ,  B01D3/14 ,  B01D3/42

摘要： Disclosed are processes and systems for removing water from a polyether polyol that employs a controlled temperature and pressure profile.

公开(公告)号：US10011682B2

公开(公告)日：2018-07-03

申请号：US13922020

申请日：2013-06-19

申请人： Nektar Therapeutics

发明人： J. Milton Harris ,  Antoni Kozlowski ,  Lihong Guo

IPC分类号： C08G63/91 ,  C08G65/332 ,  C08G65/334 ,  A61K31/765 ,  C08F251/00 ,  C08F261/04 ,  C08F265/00 ,  C08F271/00 ,  C08F283/06 ,  C08F289/00 ,  C08F291/00 ,  C08G65/30

CPC分类号： C08G63/91 ,  A61K31/765 ,  C08F251/00 ,  C08F261/04 ,  C08F265/00 ,  C08F271/00 ,  C08F283/06 ,  C08F289/00 ,  C08F291/00 ,  C08G65/30 ,  C08G65/332 ,  C08G65/3322 ,  C08G65/3346

摘要： Methods for preparing water soluble, non-peptidic polymers carrying carboxyl functional groups, particularly carboxylic acid functionalized poly(ethylene glycol) (PEG) polymers are disclosed, as are the products of these methods. In general, an ester reagent R(C═O)OR′, wherein R′ is a tertiary group and R comprises a functional group X, is reacted with a water soluble, non-peptidic polymer POLY-Y, where Y is a functional group which reacts with X to form a covalent bond, to form a tertiary ester of the polymer, which is then treated with a strong base in aqueous solution, to form a carboxylate salt of the polymer. Typically, this carboxylate salt is then treated with an inorganic acid in aqueous solution, to convert the carboxylate salt to a carboxylic acid, thereby forming a carboxylic acid functionalized polymer.

公开(公告)号：US20170313818A1

公开(公告)日：2017-11-02

申请号：US15502012

申请日：2015-08-06

申请人： IMPERIAL INNOVATIONS LIMITED

发明人： Marc Shaepertoens ,  Piers Robert James Gaffney ,  Gyorgy Szekely ,  Andrew Guy Livingston

IPC分类号： C08G65/30 ,  A61K47/60 ,  B01D61/00

CPC分类号： C08G65/30 ,  A61K47/60 ,  B01D61/00 ,  B01D2315/16 ,  C08G65/329 ,  C08G65/46 ,  C08G2650/30 ,  C08G2650/38 ,  C08G2650/50 ,  C08G2650/64 ,  C08L2203/02

摘要： A process for preparing non-naturally-occurring defined monomer sequence polymers is provided, and in which a high degree of synthetic control is obtained by the use of solvent resistant diafiltration membranes. Also provided is a process for separating non-naturally-occurring defined monomer sequence polymers from synthetic by-products or excess reagents using solvent resistant diafiltration membranes, and a use of a solvent resistant diafiltration membrane in processes for preparing and separating non-naturally-occurring defined monomer sequence polymers.

公开(公告)号：US09604956B2

公开(公告)日：2017-03-28

申请号：US14359319

申请日：2012-11-23

申请人： Ticona GMBH

发明人： Michael Haubs ,  Klaus Kurz ,  Jurgen Lingnau

IPC分类号： C07D323/06 ,  C07C47/04 ,  C08G2/10 ,  C08G2/30 ,  C08G65/30 ,  C08G65/06 ,  C08G65/16 ,  C08J11/28 ,  C08G2/36 ,  C07D323/04 ,  C08J11/16

CPC分类号： C07D323/06 ,  C07C47/04 ,  C07D323/04 ,  C08G2/10 ,  C08G2/36 ,  C08G65/06 ,  C08G65/16 ,  C08G65/30 ,  C08G2650/62 ,  C08J11/16 ,  C08J11/28 ,  C08J2359/02 ,  Y02P20/125

摘要： The present invention relates to a process for producing cyclic acetal comprising i) preparing a liquid reaction mixture comprising a) formaldehyde source, b) an aprotic compound and c) a catalyst; and ii) converting the formaldehyde source into cyclic acetals.