公开(公告)号：WO2011010116A3

公开(公告)日：2011-01-27

申请号：PCT/GB2010/001424

申请日：2010-07-26

Applicant: INVISTA TECHNOLOGIES S.à.R.L. ,  WHISTON, Keith ,  LANGRICK, Charles Richard ,  SEDDON, Kenneth Richard ,  PUGA, Alberto Vaca

Inventor： WHISTON, Keith ,  LANGRICK, Charles Richard ,  SEDDON, Kenneth Richard ,  PUGA, Alberto Vaca

IPC: C08G65/00

Abstract: The disclosures herein provide a process for conducting a nucleophilic aromatic substitution reaction in an ionic liquid and forming a polymeric material.

公开(公告)号：EP2718014A2

公开(公告)日：2014-04-16

申请号：EP12728884.3

申请日：2012-06-01

Applicant: Invista Technologies S.à.r.l.

Inventor： FRAGA-DUBREUIL, Joan ,  MEDHEKAR, Vinay ,  MICKA, Thomas, A. ,  WHISTON, Keith

IPC: B01J31/18 ,  C22B23/02 ,  C07C253/10 ,  B01J35/10

CPC classification number: B01J31/22 ,  B01J23/755 ,  B01J31/1845 ,  B01J31/185 ,  B01J31/2409 ,  B01J35/002 ,  B01J35/006 ,  B01J35/1009 ,  B01J2231/322 ,  B01J2531/007 ,  B01J2531/847 ,  C07C253/10 ,  C22B23/021 ,  Y10T428/2982 ,  C07C255/04

Abstract: A novel nickel particulate form is provided that efficiently forms a zero-valent nickel complex with a phosphorus-containing ligands in an organic liquid to form a hydrocyanation catalyst. Particles in the nickel particulate form comprise nickel crystallites. For example, the nickel particulate form can have a BET Specific Surface Area of at least about 1 m2/gm; an average crystallite size less than about 20-25 nm, the nickel particulate form can have at least 10% of the crystallites in the nickel form can have a diameter (C10) of less than about 10 nm, and/or there are on average at least about 1015 surface crystallites per gram nickel. A ratio of BET SSA to C50 for the nickel particulate form can be at least about 0.1×109 m/gm and preferably at least about 0.4×109 m/gm. Methods of preparation and use are also provided.

公开(公告)号：EP2162435B1

公开(公告)日：2013-09-04

申请号：EP08756424.1

申请日：2008-05-29

Applicant: Invista Technologies S.à.r.l.

Inventor： FORSYTH, Stewart ,  SEDDON, Kenneth, R. ,  WHISTON, Keith

IPC: C07D211/14 ,  C07D223/04 ,  C25B3/00

CPC classification number: C07D211/14 ,  C07D223/04 ,  C25B3/02

公开(公告)号：EP2173800A2

公开(公告)日：2010-04-14

申请号：EP08776100.3

申请日：2008-07-31

Applicant: Invista Technologies S.à.r.l.

Inventor： WHISTON, Keith ,  FORSYTH, Stewart ,  SEDDON, Kenneth, R.

IPC: C08J11/18 ,  C07D201/12

CPC classification number: C08J11/18 ,  C07D201/12 ,  Y02P20/542 ,  Y02W30/706

Abstract: An improved process for the hydrolysis of nylon polymer is herein disclosed using ionic liquids and optionally one equivalent of sulfuric acid per amide residue of the polymer. The process provides for a simplified means for separation of the hydrolyzed polyamide constituent monomers.

公开(公告)号：EP1844014A1

公开(公告)日：2007-10-17

申请号：EP04785350.2

申请日：2004-10-01

Applicant: INVISTA Technologies S.à.r.l.

Inventor： THOMAS, William, Barry ,  WHISTON, Keith ,  GARCIA-VERDUGO, Eduardo, Cepeda ,  POLIAKOFF, Martyn ,  HAMLEY, Paul Anthony

IPC: C07D213/807

CPC classification number: C07D213/803 ,  C07D213/80 ,  Y02P20/544

Abstract: A process for the production of a heteroaromatic carboxylic acid comprising contacting in the presence of a catalyst, a precursor of said carboxylic acid with an oxidant, such contact being effected with said precursor and the oxidant in an aqueous solvent comprising water under supercritical conditions or near supercritical conditions close to the supercritical point.

公开(公告)号：EP2771347B1

公开(公告)日：2016-07-27

申请号：EP12806121.5

申请日：2012-10-15

Applicant: Invista Technologies S.à.r.l.

Inventor： FORSYTH, Stewart ,  TURNER, John, Arthur ,  WHISTON, Keith ,  VOS, Thomas, E.

IPC: C07F9/144 ,  C07F9/145 ,  C07F9/146 ,  C07F9/6574

CPC classification number: C07F9/144 ,  C07F9/145 ,  C07F9/146 ,  C07F9/65744

公开(公告)号：EP2771347A1

公开(公告)日：2014-09-03

申请号：EP12806121.5

申请日：2012-10-15

Applicant: Invista Technologies S.à.r.l.

Inventor： FORSYTH, Stewart ,  TURNER, John, Arthur ,  WHISTON, Keith ,  VOS, Thomas, E.

IPC: C07F9/145 ,  C07F9/146 ,  C07F9/6574

CPC classification number: C07F9/144 ,  C07F9/145 ,  C07F9/146 ,  C07F9/65744

Abstract: Claimed is a process for producing a phosphorus-containing ligand, preferably a diphosphite ligand structure (DLS) such as structure I. The method includes contacting a phosphorochloridite (structure II) with a compound having the structure X-OH (which can be a bisaryl compound), and a tertiary organic amine to provide structure I' and as prefered embodiment structure I.

公开(公告)号：EP2718015A2

公开(公告)日：2014-04-16

申请号：EP12728885.0

申请日：2012-06-01

Applicant: Invista Technologies S.à.r.l.

Inventor： FRAGA-DUBREUIL, Joan ,  MEDHEKAR, Vinay ,  MICKA, Thomas A. ,  WHISTON, Keith ,  OSTERMAIER, John J. ,  SLATEN, Colin S.

IPC: B01J31/18

CPC classification number: B01J31/22 ,  B01J23/755 ,  B01J31/1845 ,  B01J31/185 ,  B01J31/2409 ,  B01J35/002 ,  B01J35/006 ,  B01J35/1009 ,  B01J2231/322 ,  B01J2531/007 ,  B01J2531/847 ,  C07C253/10 ,  C22B23/021 ,  Y10T428/2982 ,  C07C255/04

Abstract: A novel nickel particulate form is provided that efficiently forms a zero-valent nickel complex with a phosphorus-containing ligands in an organic liquid to form a hydrocyanation catalyst. Particles in the nickel particulate form comprise nickel crystallites. For example, the nickel particulate form can have a BET Specific Surface Area of at least about 1 m2/gm; an average crystallite size less than about 20-25 nm, the nickel particulate form can have at least 10% of the crystallites in the nickel form can have a diameter (C10) of less than about 10 nm, and/or there are on average at least about 1015 surface crystallites per gram nickel. A ratio of BET SSA to C50 for the nickel particulate form can be at least about 0.1×109 m/gm and preferably at least about 0.4×109 m/gm. Methods of preparation and use are also provided.

公开(公告)号：EP1501778A1

公开(公告)日：2005-02-02

申请号：EP03731081.0

申请日：2003-05-06

Applicant: Invista Technologies S.à.r.l.

Inventor： WHISTON, Keith ,  JONES, Graham, Howard

IPC: C07C51/00

CPC classification number: C07C51/265 ,  C07C63/26

Abstract: A process for the production of a carboxylic acid or its ester by catalytic liquid phase oxidation of a corresponding precursor in acetic acid as solvent, said process comprising: (i) forming a reaction medium comprising acetic acid, oxidation catalyst, precursor and oxidant; (ii) optionally recycling methyl acetate produced from the acetic acid as a by-product back to the reaction medium; (iii) introducing additional methyl acetate and/or methanol into the reaction medium, said additional methyl acetate and/or methanol being additional to any recovered methyl acetate recycled back to the reaction medium.

公开(公告)号：EP2173800B1

公开(公告)日：2011-04-13

申请号：EP08776100.3

申请日：2008-07-31

Applicant: Invista Technologies S.à.r.l.

Inventor： WHISTON, Keith ,  FORSYTH, Stewart ,  SEDDON, Kenneth, R.

IPC: C08J11/18 ,  C07D201/12

CPC classification number: C08J11/18 ,  C07D201/12 ,  Y02P20/542 ,  Y02W30/706

Abstract: An improved process for the hydrolysis of nylon polymer is herein disclosed using ionic liquids and optionally one equivalent of sulfuric acid per amide residue of the polymer. The process provides for a simplified means for separation of the hydrolyzed polyamide constituent monomers.