Patents by Inventor Main Chang

Main Chang 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).

  • Patent number: 10144790
    Abstract: The presently disclosed and claimed inventive concept(s) relates to solid catalyst components comprising titanium, magnesium, halogen and an internal electron donor compound having at least one ester group and at least one alkoxy group, and catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds. The presently disclosed and claimed inventive concept(s) further relates to methods of making the catalyst components and the catalyst systems, and methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: December 4, 2018
    Assignee: W.R. Grace & Co.-Conn.
    Inventor: Main Chang
  • Patent number: 9738736
    Abstract: Solid catalyst components are disclosed including titanium, magnesium, halogen and an internal electron donor compound having a combination of internal electron donor compounds including at least one 1,8-naphthyl diester and at least one secondary internal donor compound selected from alkyl 2-alkoxy-1-naphthoates, alkyl 2-alkoxybenzoates, alkyl 2,6-dialkoxybenzoates, (2-alkoxyphenyl)(pyrrolidin-1-yl)alkanones, dialkyl phthalates, alkyl alkionates, and dialkyl cyclohexane-1,2-dicarboxylates, and catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds. Further, methods of making the catalyst components and the catalyst systems are disclosed as well as methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: August 22, 2017
    Assignee: W. R. GRACE & CO.-CONN
    Inventors: Vladimir P. Marin, Ahmed Hintolay, Main Chang, Neil O'Reilly, Binh Thanh Nguyen
  • Publication number: 20170121433
    Abstract: The presently disclosed and claimed inventive concept(s) relates to solid catalyst components comprising titanium, magnesium, halogen and an internal electron donor compound having at least one ester group and at least one alkoxy group, and catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds. The presently disclosed and claimed inventive concept(s) further relates to methods of making the catalyst components and the catalyst systems, and methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.
    Type: Application
    Filed: January 17, 2017
    Publication date: May 4, 2017
    Inventor: Main Chang
  • Patent number: 9567410
    Abstract: The presently disclosed and claimed inventive concept(s) relates to solid catalyst components comprising titanium, magnesium, halogen and an internal electron donor compound having at least one ester group and at least one alkoxy group, and catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds. The presently disclosed and claimed inventive concept(s) further relates to methods of making the catalyst components and the catalyst systems, and methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: February 14, 2017
    Assignee: W.R. Grace & Co.-Conn.
    Inventor: Main Chang
  • Patent number: 9562119
    Abstract: The present invention relates to solid catalyst components comprising a reaction product of a titanium compound, a magnesium compound, an alcohol, an aluminum alkoxide, a siloxane mixture, and a maleate derivative; and catalyst systems comprising the solid catalyst components and organoaluminum compounds. The present invention also relates to methods of making the solid catalyst components and the catalyst systems, and methods of polymerizing or copolymerizing ethylene using the catalyst systems.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: February 7, 2017
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Main Chang, Thomas Garoff
  • Publication number: 20160145358
    Abstract: The presently disclosed and claimed inventive concept(s) relates to solid catalyst components comprising titanium, magnesium, halogen and an internal electron donor compound having at least one ester group and at least one alkoxy group, and catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds. The presently disclosed and claimed inventive concept(s) further relates to methods of making the catalyst components and the catalyst systems, and methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.
    Type: Application
    Filed: November 18, 2015
    Publication date: May 26, 2016
    Inventor: Main Chang
  • Patent number: 9284392
    Abstract: Solid catalyst components are disclosed, which include titanium, magnesium, halogen and a combination of internal electron donor compounds containing at least one 1,8 naphthyl diester compound of Formula (II-1) and at least one 3,3-bis(methoxymethyl) alkane of Formula (II-2): wherein R1, R2, R3, R4, R5, R6, R7, R8, A, and B are described herein. Catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds are also discussed. This disclosure relates to methods of making the solid catalyst components and the catalyst systems, and methods of polymerizing or copolymerizing alpha olefins using the catalyst systems.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 15, 2016
    Assignee: BASF Corporation
    Inventor: Main Chang
  • Publication number: 20160046740
    Abstract: Solid catalyst components are disclosed including titanium, magnesium, halogen and an internal electron donor compound having a combination of internal electron donor compounds including at least one 1,8-naphthyl diester and at least one secondary internal donor compound selected from alkyl 2-alkoxy-1-naphthoates, alkyl 2-alkoxybenzoates, alkyl 2,6-dialkoxybenzoates, (2-alkoxyphenyl)(pyrrolidin-1-yl)alkanones, dialkyl phthalates, alkyl alkionates, and dialkyl cyclohexane-1,2-dicarboxylates, and catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds. Further, methods of making the catalyst components and the catalyst systems are disclosed as well as methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.
    Type: Application
    Filed: August 12, 2014
    Publication date: February 18, 2016
    Inventors: Vladimir P. MARIN, Ahmed HINTOLAY, Main CHANG, Neil O'REILLY, Binh Thanh NGUYEN
  • Patent number: 9217047
    Abstract: The presently disclosed and claimed inventive concept(s) relates to solid catalyst components comprising titanium, magnesium, halogen and an internal electron donor compound having at least one ester group and at least one alkoxy group, and catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds. The presently disclosed and claimed inventive concept(s) further relates to methods of making the catalyst components and the catalyst systems, and methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: December 22, 2015
    Assignee: BASF Corporation
    Inventor: Main Chang
  • Patent number: 8933180
    Abstract: The present disclosure relates to solid catalyst components comprising titanium, magnesium, halogen and an internal electron donor compound containing at least one 9-(alkoxymethyl)-9H-fluorene compound. The 9-(alkoxymethyl)-9H-fluorene compound include octyl-9-(methoxymethyl)-9H-fluorene-9-carboxylate; 7-methyloctyl-9-(methoxymethyl)-9H-fluorene-9-carboxylate; 2-ethylhexyl-9-(methoxymethyl)-9H-fluorene-9-carboxylate; and 9-(methoxymethyl)-9H-fluorene-9-yl benzoate. The present disclosure further relates to catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds. The present disclosure also relates to methods of making the solid catalyst components and the catalyst systems, and methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: January 13, 2015
    Assignee: BASF Corporation
    Inventor: Main Chang
  • Publication number: 20140275452
    Abstract: Solid catalyst components are disclosed, which include titanium, magnesium, halogen and a combination of internal electron donor compounds containing at least one 1,8 naphthyl diester compound of Formula (II-1) and at least one 3,3-bis(methoxymethyl) alkane of Formula (II-2): wherein R1, R2, R3, R4, R5, R6, R7, R8, A, and B are described herein. Catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds are also discussed. This disclosure relates to methods of making the solid catalyst components and the catalyst systems, and methods of polymerizing or copolymerizing alpha olefins using the catalyst systems.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: BASF CATALYSTS LLC
    Inventor: Main CHANG
  • Publication number: 20140275451
    Abstract: The present disclosure relates to solid catalyst components comprising titanium, magnesium, halogen and an internal electron donor compound containing at least one 9-(alkoxymethyl)-9H-fluorene compound. The 9-(alkoxymethyl)-9H-fluorene compound include octyl-9-(methoxymethyl)-9H-fluorene-9-carboxylate; 7-methyloctyl-9-(methoxymethyl)-9H-fluorene-9-carboxylate; 2-ethylhexyl-9-(methoxymethyl)-9H-fluorene-9-carboxylate; and 9-(methoxymethyl)-9H-fluorene-9-yl benzoate. The present disclosure further relates to catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds. The present disclosure also relates to methods of making the solid catalyst components and the catalyst systems, and methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: BASF CATALYSTS LLC
    Inventor: Main CHANG
  • Publication number: 20140235805
    Abstract: The presently disclosed and claimed inventive concept(s) relates to solid catalyst components comprising titanium, magnesium, halogen and an internal electron donor compound having at least one ester group and at least one alkoxy group, and catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds. The presently disclosed and claimed inventive concept(s) further relates to methods of making the catalyst components and the catalyst systems, and methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.
    Type: Application
    Filed: April 17, 2014
    Publication date: August 21, 2014
    Applicant: BASF CORPORATION
    Inventor: Main Chang
  • Patent number: 8765626
    Abstract: The presently disclosed and claimed inventive concept(s) relates to solid catalyst components comprising titanium, magnesium, halogen and an internal electron donor compound having at least one ester group and at least one alkoxy group, and catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds. The presently disclosed and claimed inventive concept(s) further relates to methods of making the catalyst components and the catalyst systems, and methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: July 1, 2014
    Assignee: BASF Corporation
    Inventor: Main Chang
  • Patent number: 8569195
    Abstract: The present invention relates to catalyst systems containing solid catalyst components comprising titanium, magnesium, halogen and an internal electron donor compound having at least one ether group and at least one ketone group; organoaluminum compounds and alkyl benzoate derivatives as external electron donors. The present invention also relates to methods of making the catalyst systems, and methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: October 29, 2013
    Assignee: BASF Corporation
    Inventor: Main Chang
  • Publication number: 20130231447
    Abstract: Solid catalyst components are disclosed including titanium, magnesium, halogen and an internal electron donor compound having at least one ester group and at least one alkoxy group, and catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds. Further, methods of making the catalyst components and the catalyst systems are disclosed as well as methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.
    Type: Application
    Filed: April 2, 2013
    Publication date: September 5, 2013
    Applicant: BASF Corporation
    Inventor: Main CHANG
  • Publication number: 20130137568
    Abstract: The presently disclosed and claimed inventive concept(s) relates to solid catalyst components comprising titanium, magnesium, halogen and an internal electron donor compound having at least one ester group and at least one alkoxy group, and catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds. The presently disclosed and claimed inventive concept(s) further relates to methods of making the catalyst components and the catalyst systems, and methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.
    Type: Application
    Filed: November 30, 2011
    Publication date: May 30, 2013
    Inventor: Main Chang
  • Patent number: 8318626
    Abstract: The present invention relates to solid catalyst components comprising titanium, magnesium, halogen and an internal electron donor compound containing at least one 1,8-naphthyl diester compound. The 1,8-naphthyl diester compounds include naphthalene-1,8-diyl dicycloalkanecarboxylate derivatives, dicycloalkenecarboxylate derivatives, 8-(cycloalkanecarbonyloxy)naphthalene-1-yl benzoate derivatives, and 8-(cycloalkenecarbonyloxy)naphthalene-1-yl benzoate derivatives. The present invention further relates to catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds. The present invention also relates to methods of making the solid catalyst components and the catalyst systems, and methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: November 27, 2012
    Assignee: BASF Corporation
    Inventor: Main Chang
  • Patent number: 8227370
    Abstract: A catalyst system containing (a) a solid catalyst component containing a titanium halide, a magnesium halide, a first internal electron donor compound, and a second internal electron donor compound, (b) an organoaluminum compound, and (c) an external electron donor compound is disclosed. The first internal electron donor compound contains at least one ether group and at least one ketone group. The second internal electron donor compound is a 1,8-naphthyl diester compound. Methods of polymerizing or copolymerizing alpha-olefins using the catalyst system also are disclosed.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: July 24, 2012
    Assignee: BASF Corporation
    Inventor: Main Chang
  • Patent number: 8211819
    Abstract: The present invention relates to catalyst systems containing solid catalyst components comprising titanium, magnesium, halogen and a 1,8-naphthyl diaryloate internal electron donor compound; organoaluminum compounds and alkyl benzoate derivatives as external electron donors. The present invention also relates to methods of making the catalyst systems, and methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: July 3, 2012
    Assignee: BASF Corporation
    Inventor: Main Chang