Patents by Inventor Maik Caspari

Maik Caspari has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for preparing C-H acidic (meth)acrylates
    Patent number: 11912648
    Abstract: The invention relates to a method for preparing C—H acidic (meth)acrylates and the uses thereof.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: February 27, 2024
    Assignee: Evonik Operations GmbH
    Inventors: Marcel Treskow, Maik Caspari, Thorben Schütz, Steffen Krill
  • A METHOD FOR THE PURIFICATION OF ETHYLENE CYANOHYDRIN
    Publication number: 20240034715
    Abstract: A process for purifying ethylene cyanohydrin involves incubating an industrial grade ethylene cyanohydrin product with at least one titanium(IV)alkoxide. Ethylene cyanohydrin products with purities of >99% contain less than 0.05% of ethylene glycol (EG), and/or contain a water content of less than 1000 ppm.
    Type: Application
    Filed: November 8, 2021
    Publication date: February 1, 2024
    Applicant: Evonik Operations GmbH
    Inventors: Sebastian Bestgen, Günther Gräff, Maik Caspari, Thorben Schütz, Harald Trauthwein
  • Process for preparing glycerol carbonate (meth)acrylate
    Publication number: 20220388943
    Abstract: A process prepares glycerol carbonate (meth)acrylate by transesterification of methyl (meth)acrylate with glycerol carbonate, in the presence of a zirconium acetylacetonate catalyst. The catalyst is pretreated with 2% by weight to 25% by weight of water, based on the amount of catalyst.
    Type: Application
    Filed: October 2, 2020
    Publication date: December 8, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Marcel TRESKOW, Günther Gräff, Maik Caspari, Thorben Schütz, Steffen Krill
  • METHOD FOR PRODUCING GLYCEROL MONO(METH)ACRYLATE
    Publication number: 20220251019
    Abstract: The invention relates to a method for producing glycerol mono(meth)acrylate from 2,2-dimethyl-1,3-dioxolan-4-ylmethyl (meth)acrylate by acid-catalysed reaction with methanol.
    Type: Application
    Filed: June 18, 2020
    Publication date: August 11, 2022
    Applicant: EVONIK OPERATIONS GMBH
    Inventors: Sebastian BESTGEN, Maik CASPARI, Thorben SCHÜTZ, Tim BLEITH
  • PROCESS FOR PREPARING CARBONATES BY ADDITION OF CO2 WITH AN EPOXIDE
    Publication number: 20220056005
    Abstract: The invention relates to a process for preparing cyclic organic carbonates, characterized in that an epoxide is initially charged in the presence of CO2 and then a catalyst is added.
    Type: Application
    Filed: June 7, 2019
    Publication date: February 24, 2022
    Applicant: EVONIK OPERATIONS GMBH
    Inventors: Marcel TRESKOW, Günther GRÄFF, Maik CASPARI, Thorben SCHÜTZ, Steffen KRILL, Tim BLEITH
  • CH-ACIDIC METHACRYLIC ESTERS FOR THE PREPARATION OF AQUEOUS POLYMER DISPERSIONS
    Publication number: 20210332005
    Abstract: The present invention relates to CH-acidic methacrylic esters and also copolymers obtainable from CH-acidic methacrylic esters. Furthermore, the present invention relates to coating compositions comprising these copolymers.
    Type: Application
    Filed: July 8, 2019
    Publication date: October 28, 2021
    Applicant: EVONIK OPERATIONS GMBH
    Inventors: Marcel TRESKOW, Maik CASPARI, Thorben SCHÜTZ, Steffen KRILL
  • METHOD FOR PREPARING C-H ACIDIC (METH)ACRYLATES
    Publication number: 20210269393
    Abstract: The invention relates to a method for preparing C—H acidic (meth)acrylates and the uses thereof.
    Type: Application
    Filed: July 10, 2019
    Publication date: September 2, 2021
    Applicant: EVONIK OPERATIONS GMBH
    Inventors: Marcel TRESKOW, Maik CASPARI, Thorben SCHÜTZ, Steffen KRILL
  • PROCESS FOR PREPARING CARBONATES BY ADDITION OF CO2 WITH AN EPOXIDE
    Publication number: 20210163439
    Abstract: The invention relates to a process for preparing cyclic organic carbonates, characterized in that an epoxide is initially charged in the presence of CO2 and then a catalyst is added.
    Type: Application
    Filed: June 7, 2019
    Publication date: June 3, 2021
    Applicant: EVONIK OPERATIONS GMBH
    Inventors: Marcel TRESKOW, Günther GRÄFF, Maik CASPARI, Thorben SCHÜTZ, Steffen KRILL, Tim BLEITH
  • METHOD FOR THE PRODUCTION OF HIGH-PURITY GLYCEROL DIMETHACRYLATE
    Publication number: 20170022142
    Abstract: The present invention claims a process for preparing high-purity glycerol dimethacrylate comprising <500 ppm of glycidyl methacrylate, characterized in that an aftertreatment with acidic adsorbent is effected.
    Type: Application
    Filed: February 10, 2015
    Publication date: January 26, 2017
    Applicant: Evonik Roehm GmbH
    Inventors: Joachim KNEBEL, Volker HERZOG, Maik CASPARI
  • Process for preparing glyceryl carbonate
    Patent number: 7790908
    Abstract: The present invention relates to a process for preparing highly pure glyceryl carbonate by transesterifying dialkyl carbonates or cyclic carbonates in the presence of a basic catalyst.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: September 7, 2010
    Assignee: Evonik Roehm GmbH
    Inventors: Bardo Schmitt, Joachim Knebel, Maik Caspari
  • Process for Preparing Glyceryl Carbonate
    Publication number: 20080255372
    Abstract: The present invention relates to a process for preparing highly pure glyceryl carbonate by transesterifying dialkyl carbonates or cyclic carbonates in the presence of a basic catalyst.
    Type: Application
    Filed: October 11, 2006
    Publication date: October 16, 2008
    Applicant: Evonik Roehm GmbH
    Inventors: Bardo Schmitt, Joachim Knebel, Maik Caspari
  • Method for producing glycerol carbonate methacrylate
    Patent number: 7414147
    Abstract: The invention relates to a method for producing glycerol carbonate methacrylate in the presence of metal-chelate catalysts of the metal ion-1,3-diketonate type.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: August 19, 2008
    Assignee: Roehm GmbH & Co. KG
    Inventors: Bardo Schmitt, Maik Caspari
  • Method for producing glycerol carbonate methacrylate
    Publication number: 20070106044
    Abstract: The invention relates to a method for producing glycerol carbonate methacrylate in the presence of metal-chelate catalysts of the metal ion-1,3-diketonate type.
    Type: Application
    Filed: August 24, 2004
    Publication date: May 10, 2007
    Applicant: ROEHM GBMH & CO. KG
    Inventors: Bardo Schmitt, Maik Caspari
  • Synthesis of alkylaminoalkyl (meth)acrylate by transesterification
    Patent number: 7071351
    Abstract: The invention relates to a method for transesterifying methyl methacrylate involving catalysis, particularly zirconium acetylacetonate catalysis. The obtained esters of formula (I) are characterized by having an extremely low content of cross-linking agents.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: July 4, 2006
    Assignee: Roehm GmbH & Co. KG
    Inventors: Bardo Schmitt, Joachim Knebel, Maik Caspari
  • Synthesis of alkylaminoalkyl (meth)acrylate by transesterification
    Publication number: 20040249191
    Abstract: The invention relates to a method for transesterifying methyl methacrylate involving catalysis, particularly zirconium acetylacetonate catalysis. The obtained esters of formula (I) are characterized by having an extremely low content of cross-linking agents.
    Type: Application
    Filed: February 27, 2004
    Publication date: December 9, 2004
    Inventors: Bardo Schmitt, Joachim Knebel, Maik Caspari