Patents by Inventor Stefan Hinrichs

Stefan Hinrichs 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).

  • Publication number: 20180171046
    Abstract: A process to form an ethylene-based polymer comprises polymerizing a reaction mixture comprising ethylene, at least one monomeric chain transfer agent, and at least one chain transfer agent system comprising at least one chain transfer agent (CTA) in the presence of at least one free-radical initiator and in a reactor configuration comprising at least two reaction zones, reaction zone 1 and reaction zone i (i?2), wherein the reaction zone i is downstream from reaction zone 1. The ratio of “the activity of the CTA system of the feed to the first reaction zone” to the “activity of the CTA system of the cumulative feed to the reaction zone i,” (Z1/Zi), is less than or equal to (0.8?0.2*log(Cs)), wherein Cs is from 0.0001 to 10.
    Type: Application
    Filed: June 24, 2016
    Publication date: June 21, 2018
    Inventors: Otto J. Berbee, Stefan Hinrichs, Sean W. Ewart, John O. Osby
  • Publication number: 20180171047
    Abstract: A process to form an ethylene-based polymer comprises polymerizing a reaction mixture comprising ethylene, at least one symmetrical polyene and at least one chain transfer agent system comprising at least one chain transfer agent (CTA) in the presence of at least one free-radical initiator and in a reactor configuration comprising at least two reaction zones, reaction zone 1 and reaction zone i (i?2), wherein reaction zone i is downstream from reaction zone 1. The ratio of “the activity of the CTA system of the feed to the first reaction zone” to the “activity of the CTA system of the cumulative feed to the reaction zone i,” (Z1/Zi), is less than or equal to (0.8-0.2*log(Cs)), wherein Cs is from 0.0001 to 10.
    Type: Application
    Filed: June 23, 2016
    Publication date: June 21, 2018
    Inventors: Otto J. Berbee, Stefan Hinrichs, Sean W. Ewart, John O. Osby
  • Publication number: 20180155457
    Abstract: Ethylene-based polymer, LDPE, is made in a high pressure polymerization process to comprising at least the step of polymerizing a reaction mixture comprising ethylene, using a reactor configuration comprising (A) at least two reaction zones, a first reaction zone (reaction zone 1) and an i reaction zone (reaction zone i where i>2), (B) at least two ethylene feed streams, each feed stream comprising a percentage of the total make-up ethylene fed to the polymerization process, in which a first ethylene feed stream is sent to reaction zone 1 and a second ethylene feed stream is sent to reaction zone i, and (C) a control system to control the percentage of the total make-up ethylene in the ethylene feed stream sent to reaction zone 1 and the percentage of the total make-up ethylene in the ethylene feed stream sent to reaction zone i.
    Type: Application
    Filed: June 24, 2016
    Publication date: June 7, 2018
    Inventors: Otto J. Berbee, Cornelis JF Hosman, Sergio E. Goncalves, Stefan Hinrichs
  • Publication number: 20180127523
    Abstract: The invention provides an ethylene homopolymer formed from a free-radical, high pressure polymerization process in a tubular reactor system, said homopolymer comprising the following properties: (A) a density from 0.9190 to 0.9250 g/cc; (B) a hexane extractable level that is less than, or equal to, 2.6 wt %, based on the total weight of the polymer; (C) a G? (at G?=500 Pa, 170 C) that meets the following equation: G??D+E[log (I2)], where D=150 Pa and E=?60 Pa/[log(dg/min)]; and (D) a melt in dex (I2) from 1.0 to 20 dg/min.
    Type: Application
    Filed: June 23, 2016
    Publication date: May 10, 2018
    Inventors: Stefan Hinrichs, Cornelis F. J. Den Doelder, Nhi T. Y. Dang, Otto J. Berbee
  • Patent number: 9963524
    Abstract: The invention provides an ethylene-based polymer comprising the following properties: a) weight fraction (w) of molecular weight above 5*106 g/mol, w>A?B*I2, where A=0.4 wt %, and B is 0.02 wt %/(dg/min), and w<C?B*I2%, where C=0.9 wt %; and b) G?>D?E*log(I2), where D=162 Pa and E=52 Pa/log(dg/min).
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: May 8, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Cornelis F. J. Den Doelder, Otto J. Berbee, Stefan Hinrichs, Teresa P. Karjala
  • Publication number: 20180112017
    Abstract: Ethylene-based polymers comprising the following properties: (A) a density from 0.9190 g/cc to 0.9240 g/cc; (B) a hexane extractable level that is less than or equal to the lower of: (1) (A+(B*density (g/cc))+(C*log(MI) dg/min)) based on total weight of the ethylene-based polymer; where A=250.5 wt %, B=?270 wt %/(g/cc), C=0.25 wt %/[log(dg/min)], or (2) 2.0 wt %; (C) a G? (at G?=500 Pa, 170° C.) that meets the following equation: G??D+E[log (12)], where D=150 Pa and E=?60 Pa/[log(dg/min)]; and (D) a melt index (12) from 1.0 to 20 dg/min; are made in process comprising the step of contacting in a reaction configuration, comprising a first tubular reaction zone 1 and a last tubular reaction zone i, in which i is greater than or equal to (?) 3, under high pressure polymerization conditions, and in which the first reaction zone 1 has a peak polymerization temperature greater than the peak temperature of the ith reaction zone, and wherein the difference in these two peak temperatures is ?30° C.
    Type: Application
    Filed: June 23, 2016
    Publication date: April 26, 2018
    Inventors: Otto J. Berbee, Cornelis F.J. Den Doelder, Stefan Hinrichs, Teresa P. Karjala, John O. Osby
  • Patent number: 9944733
    Abstract: A composition comprising an ethylene-based polymer, the ethylene-based polymer having the following properties: a) at least one incorporated structure derived from a polyene selected from the group consisting of i) through x), as described herein; and b) a Mw(abs) versus I2 relationship: Mw(abs)<A+B(I2), wherein A=2.40×105 g/mole and B=?8.00×103 (g/mole)/(dg/min). A composition comprising an ethylene-based polymer, the ethylene-based polymer comprising at least one incorporated structure derived from a polyene selected from the group consisting of i) through x), as described herein, wherein the polymer is formed in a reactor configuration comprising at least one tubular reactor.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: April 17, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Otto J. Berbee, Christopher R. Eddy, Stefan Hinrichs, Sarat Munjal, John O. Osby
  • Patent number: 9856338
    Abstract: The invention provides a high pressure, free-radical polymerization process for polymerizing an ethylene-based polymer, said process comprising polymerizing ethylene, in a reactor configuration comprising a reactor with at least two reaction zones, a first reaction zone and a reaction zone located downstream from the first reaction zone; and wherein CO (carbon monoxide) is added to the reactor in at least one reaction zone located downstream from the first reaction zone, and wherein, less than, or equal to, 95 weight percent of the total amount of CO, is fed to the first reaction zone.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: January 2, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Otto J. Berbee, Teresa P. Karjala, Stefan Hinrichs, James L. Cooper
  • Publication number: 20170362356
    Abstract: The invention provides an ethylene-based polymer comprising the following properties: a) weight fraction (w) of molecular weight above 5*106 g/mol, w>A?B*I2, where A=0.4 wt %, and B is 0.02 wt %/(dg/min), and w<C?B*I2%, where C=0.9 wt %; and b) G?>D?E*log(I2), where D=162 Pa and E=52 Pa/log(dg/min).
    Type: Application
    Filed: August 31, 2017
    Publication date: December 21, 2017
    Inventors: Cornelis F.J. Den Doelder, Otto J. Berbee, Stefan Hinrichs, Teresa P. Karjala
  • Publication number: 20170335034
    Abstract: A process to form an ethylene-based polymer including polymerizing ethylene and at least one asymmetrical polyene comprising an “alpha, beta unsaturated-carbonyl end” (“?,? unsaturated-carbonyl end”) and a “C—C double bond end,” wherein the polymerization takes place in the presence of at least one free-radical initiator; and wherein the polymerization takes place in a reactor configuration comprising at least two reaction zones, reaction zone 1 and reaction zone i (i?2), wherein reaction zone i is downstream from reaction zone 1.
    Type: Application
    Filed: July 11, 2017
    Publication date: November 23, 2017
    Inventors: Otto J. Berbee, Stefan Hinrichs, Christopher R. Eddy, Sarat Munjal, John O. Osby, Sean W. Ewart
  • Publication number: 20170283526
    Abstract: The invention provides an ethylene-based polymer comprising the following properties: a) a melt index (I2)?2.0 dg/min; b) a Mw(abs) versus I2 relationship: Mw(abs)<A+B(I2), where A=2.40×105 g/mole, and B=?8.00×103 (g/mole)/(dg/min); and c) a G? versus 12 relationship: G??C+D(I2), where C=127.5 Pa, and D=?1.25 Pa/(dg/min). The invention also provides an ethylene-based polymer comprising the following properties: a) a melt index (I2)?2.0 dg/min; b) a G? versus I2 relationship: G??C+D(I2), where C=127.5 Pa, and D=?1.25 Pa/(dg/min) c) a chloroform extractable (Clext) versus G? relationship: Clext.?E+FG?, where E=0.20 wt %, and F=0.060 wt %/Pa; and d) a “weight fraction (w) of molecular weight greater than 106 g/mole, based on the total weight of polymer, and as determined by GPC(abs),” that meets the following relationship: w<I+J(I2), where I=0.080, and J=?4.00×10?3 min/dg.
    Type: Application
    Filed: June 19, 2017
    Publication date: October 5, 2017
    Inventors: Otto J. Berbee, Cornelis F. J. Den Doelder, Stefan Hinrichs, Teresa P. Karjala
  • Patent number: 9765160
    Abstract: The invention provides an ethylene-based polymer comprising the following properties: a) weight fraction (w) of molecular weight above 5*106 g/mol, w>A?B*I2, where A=0.4 wt %, and B is 0.02 wt %/(dg/min), and w<C?B*I2%, where C=0.9 wt %; and b) G?>D?E*log(I2), where D=162 Pa and E=52 Pa/log(dg/min).
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: September 19, 2017
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Cornelis F. J. Den Doelder, Otto J. Berbee, Stefan Hinrichs, Teresa P. Karjala
  • Patent number: 9751964
    Abstract: The invention provides a process to form an ethylene-based polymer, said process comprising polymerizing ethylene and at least one asymmetrical polyene, comprising an “alpha, beta unsaturated—carbonyl end” and a “C—C double bond end,” and wherein the polymerization takes place in the presence of at least one free-radical initiator, and wherein the polymerization takes place in a reactor configuration comprising at least two reaction zones, reaction zone I and reaction zone i (i>2), wherein reaction zone I is downstream from reaction zone I; and wherein at least one chain transfer agent (CTA) is added to the polymerization, and wherein the CTA is a saturated hydrocarbon or an unsaturated hydrocarbon.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: September 5, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Christopher R. Eddy, John O. Osby, Sean W. Ewart, Sarat Munjal, Stefan Hinrichs, Otto J. Berbee
  • Patent number: 9718906
    Abstract: A process to form an ethylene-based polymer including polymerizing ethylene and at least one asymmetrical polyene comprising an “alpha, beta unsaturated-carbonyl end” (“?,?-unsaturated-carbonyl end”) and a “C—C double bond end,” wherein the polymerization takes place in the presence of at least one free-radical initiator; and wherein the polymerization takes place in a reactor configuration comprising at least two reaction zones, reaction zone 1 and reaction zone i (i>2), wherein reaction zone i is downstream from reaction zone 1.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: August 1, 2017
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Otto J. Berbee, Stefan Hinrichs, Christopher R. Eddy, Sarat Munjal, John O. Osby, Sean W. Ewart
  • Patent number: 9683058
    Abstract: The invention provides an ethylene-based polymer comprising the following properties: a) a melt index (I2)?2.0 dg/min; b) a Mw(abs) versus I2 relationship: Mw(abs)<A+B(I2), where A=2.40×105 g/mole, and B=?8.00×103 (g/mole)/(dg/min); and c) a G? versus I2 relationship: G??C+D(I2), where C=127.5 Pa, and D=?1.25 Pa/(dg/min). The invention also provides an ethylene-based polymer comprising the following properties: a) a melt index (I2)?2.0 dg/min; b) a G? versus I2 relationship: G??C+D(I2), where C=127.5 Pa, and D=?1.25 Pa/(dg/min) c) a chloroform extractable (Clext) versus G? relationship: Clext.?E+FG?, where E=0.20 wt %, and F=0.060 wt %/Pa; and d) a “weight fraction (w) of molecular weight greater than 106 g/mole, based on the total weight of polymer, and as determined by GPC(abs),” that meets the following relationship: w<I+J(I2), where I=0.080, and J=?4.00×10?3 min/dg.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: June 20, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Otto J. Berbee, Cornelis F. J. Den Doelder, Stefan Hinrichs, Teresa P. Karjala
  • Publication number: 20170114163
    Abstract: The invention provides a high pressure, free-radical polymerization process for polymerizing an ethylene-based polymer, said process comprising polymerizing ethylene, in a reactor configuration comprising a reactor with at least two reaction zones, a first reaction zone and a reaction zone located downstream from the first reaction zone; and wherein CO (carbon monoxide) is added to the reactor in at least one reaction zone located downstream from the first reaction zone, and wherein, less than, or equal to, 95 weight percent of the total amount of CO, is fed to the first reaction zone.
    Type: Application
    Filed: June 24, 2015
    Publication date: April 27, 2017
    Inventors: Otto J. Berbee, Teresa P. Karjala, Stefan Hinrichs, James L. Cooper
  • Publication number: 20160319053
    Abstract: The invention provides a composition comprising a first ethylene-based polymer, formed by a high pressure, free-radical polymerization process, and comprising the following properties: a) a Mw(abs) versus I2 relationship: Mw(abs)<A×[(I2)B], where A=5.00×102 (g/mole)/(dg/min)B, and B=?0.40; and b) a MS versus I2 relationship: MS?C×[(I2)D], where C=13.5 cN/(dg/min)D, and D=?0.55.
    Type: Application
    Filed: July 13, 2016
    Publication date: November 3, 2016
    Inventors: Otto J. Berbee, Cornelis F.J. Den Doelder, Teresa P. Karjala, Karl Zuercher, Jian Wang, Stefan Hinrichs
  • Publication number: 20160304638
    Abstract: The invention provides an ethylene-based polymer comprising the following properties: a) weight fraction (w) of molecular weight above 5*106 g/mol, w>A?B*I2, where A=0.4 wt %, and B is 0.02 wt %/(dg/min), and w<C?B*I2%, where C=0.9 wt %; and b) G?>D?E*log(I2), where D=162 Pa and E=52 Pa/log(dg/min).
    Type: Application
    Filed: November 20, 2014
    Publication date: October 20, 2016
    Inventors: Cornelis F.J. Den Doelder, Otto J. Berbee, Stefan Hinrichs, Teresa P. Karjala
  • Publication number: 20160304643
    Abstract: The invention provides a process to form an ethylene-based polymer, said process comprising polymerizing ethylene and at least one asymmetrical polyene, comprising an “alpha, beta unsaturated—carbonyl end” and a “C—C double bond end,” and wherein the polymerization takes place in the presence of at least one free-radical initiator, and wherein the polymerization takes place in a reactor configuration comprising at least two reaction zones, reaction zone 1 and reaction zone i (i?2), wherein reaction zone i is downstream from reaction zone 1; and wherein at least one chain transfer agent (CTA) is added to the polymerization, and wherein the CTA is a saturated hydrocarbon or an unsaturated hydrocarbon.
    Type: Application
    Filed: December 23, 2014
    Publication date: October 20, 2016
    Inventors: Christopher R. Eddy, John O. Osby, Sean W. Ewart, Sarat Munjal, Stefan Hinrichs, Otto J. Berbee
  • Publication number: 20160297905
    Abstract: A composition comprising an ethylene-based polymer, the ethylene-based polymer having the following properties: a) at least one incorporated structure derived from a polyene selected from the group consisting of i) through x), as described herein; N and b) a Mw(abs) versus I2 relationship: Mw(abs)<A+B(I2), wherein A=2.40×105 g/mole and B=?8.00×103 (g/mole) (dg/min). A composition comprising an ethylene-based polymer, the ethylene-based polymer comprising at least one incorporated structure derived from a polyene selected from the group consisting of i) through x), as described herein, wherein the polymer is formed in a reactor configuration comprising at least one tubular reactor.
    Type: Application
    Filed: December 23, 2014
    Publication date: October 13, 2016
    Inventors: Otto J. Berbee, Christopher R. Eddy, Stefan Hinrichs, Sarat Munjal, John O. Osby