Patents by Inventor Leah Langsdorf

Leah Langsdorf 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: 20230295452
    Abstract: Embodiments in accordance with the present invention encompass a composition containing a latent catalyst and a compound capable of generating a Bronsted acid with a counterion capable of coordinating and activating the latent catalyst along with one or more monomers which undergo ring open metathesis polymerization (ROMP) and one or more multi-functional crosslinkable molecules when said composition is exposed to a suitable radiation forms a three-dimensional (3D) object. The catalyst system employed therein can be sensitive to oxygen and thus inhibits polymerization in ambient atmospheric conditions. The three-dimensional objects made by this process exhibits improved mechanical properties, particularly, high distortion temperature, impact strength, elongation to break, among others. Accordingly, compositions of this invention are useful as 3D inkjet materials for forming high impact strength objects of various sizes with microscale features lower than 100 microns, among various other uses.
    Type: Application
    Filed: May 22, 2023
    Publication date: September 21, 2023
    Applicant: PROMERUS, LLC
    Inventors: OLEKSANDR BURTOVYY, WEI ZHANG, LEAH LANGSDORF, LARRY F. RHODES
  • Patent number: 11697744
    Abstract: Embodiments in accordance with the present invention encompass a composition containing a latent catalyst and a compound capable of generating a Bronsted acid with a counterion capable of coordinating and activating the latent catalyst along with one or more monomers which undergo ring open metathesis polymerization (ROMP) and one or more multi-functional crosslinkable molecules when said composition is exposed to a suitable radiation forms a three-dimensional (3D) object. The catalyst system employed therein can be sensitive to oxygen and thus inhibits polymerization in ambient atmospheric conditions. The three-dimensional objects made by this process exhibits improved mechanical properties, particularly, high distortion temperature, impact strength, elongation to break, among others. Accordingly, compositions of this invention are useful as 3D inkjet materials for forming high impact strength objects of various sizes with microscale features lower than 100 microns, among various other uses.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: July 11, 2023
    Assignee: PROMERUS, LLC
    Inventors: Oleksandr Burtovyy, Wei Zhang, Leah Langsdorf, Larry F Rhodes
  • Patent number: 11299566
    Abstract: Embodiments in accordance with the present invention encompass compositions comprising a organopalladium compound, a photoacid generator, a photosensitizer, one or more olefinic monomers and a stabilizer, such as for example a hindered amine, which undergo vinyl addition polymerization when said composition is exposed to a suitable actinic radiation to form a substantially transparent film. The compositions of this invention are stable at room temperature for several days to several months and can also be stored at higher temperatures from about 40° C. to 60° C. for several days and undergo mass polymerization only when subjected to suitable actinic radiation. The monomers employed therein have a range of optical and mechanical properties, and thus these compositions can be tailored to form films having various opto-electronic properties.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: April 12, 2022
    Assignee: PROMERUS, LLC
    Inventors: Shun Hayakawa, Guodong Deng, Ruslan Burtovyy, Leah Langsdorf, Larry F Rhodes
  • Publication number: 20220010157
    Abstract: Embodiments in accordance with the present invention encompass a composition containing a latent catalyst and a compound capable of generating a Bronsted acid with a counterion capable of coordinating and activating the latent catalyst along with one or more monomers which undergo ring open metathesis polymerization (ROMP) and one or more multi-functional crosslinkable molecules when said composition is exposed to a suitable radiation forms a three-dimensional (3D) object. The catalyst system employed therein can be sensitive to oxygen and thus inhibits polymerization in ambient atmospheric conditions. The three-dimensional objects made by this process exhibits improved mechanical properties, particularly, high distortion temperature, impact strength, elongation to break, among others. Accordingly, compositions of this invention are useful as 3D inkjet materials for forming high impact strength objects of various sizes with microscale features lower than 100 microns, among various other uses.
    Type: Application
    Filed: September 10, 2021
    Publication date: January 13, 2022
    Applicant: PROMERUS, LLC
    Inventors: OLEKSANDR BURTOVYY, WEI ZHANG, LEAH LANGSDORF, LARRY F RHODES
  • Publication number: 20220002453
    Abstract: Embodiments in accordance with the present invention encompass compositions comprising a organopalladium compound, a photoacid generator, a photosensitizer, one or more olefinic monomers and a stabilizer, such as for example a hindered amine, which undergo vinyl addition polymerization when said composition is exposed to a suitable actinic radiation to form a substantially transparent film. The compositions of this invention are stable at room temperature for several days to several months and can also be stored at higher temperatures from about 40° C. to 60° C. for several days and undergo mass polymerization only when subjected to suitable actinic radiation. The monomers employed therein have a range of optical and mechanical properties, and thus these compositions can be tailored to form films having various opto-electronic properties.
    Type: Application
    Filed: June 24, 2021
    Publication date: January 6, 2022
    Applicant: PROMERUS, LLC
    Inventors: SHUN HAYAKAWA, GUODONG DENG, RUSLAN BURTOVYY, LEAH LANGSDORF, LARRY F RHODES
  • Patent number: 11142662
    Abstract: Embodiments in accordance with the present invention encompass a composition containing a latent catalyst and a compound capable of generating a Bronsted acid with a counterion capable of coordinating and activating the latent catalyst along with one or more monomers which undergo ring open metathesis polymerization (ROMP) and one or more multi-functional crosslinkable molecules when said composition is exposed to a suitable radiation forms a three-dimensional (3D) object. The catalyst system employed therein can be sensitive to oxygen and thus inhibits polymerization in ambient atmospheric conditions. The three-dimensional objects made by this process exhibits improved mechanical properties, particularly, high distortion temperature, impact strength, elongation to break, among others. Accordingly, compositions of this invention are useful as 3D inkjet materials for forming high impact strength objects of various sizes with microscale features lower than 100 microns, among various other uses.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: October 12, 2021
    Assignee: PROMERUS, LLC
    Inventors: Oleksandr Burtovyy, Wei Zhang, Leah Langsdorf, Larry F Rhodes
  • Publication number: 20200199391
    Abstract: Embodiments in accordance with the present invention encompass a composition containing a latent catalyst and a compound capable of generating a Bronsted acid with a counterion capable of coordinating and activating the latent catalyst along with one or more monomers which undergo ring open metathesis polymerization (ROMP) and one or more multi-functional crosslinkable molecules when said composition is exposed to a suitable radiation forms a three-dimensional (3D) object. The catalyst system employed therein can be sensitive to oxygen and thus inhibits polymerization in ambient atmospheric conditions. The three-dimensional objects made by this process exhibits improved mechanical properties, particularly, high distortion temperature, impact strength, elongation to break, among others. Accordingly, compositions of this invention are useful as 3D inkjet materials for forming high impact strength objects of various sizes with microscale features lower than 100 microns, among various other uses.
    Type: Application
    Filed: December 23, 2019
    Publication date: June 25, 2020
    Applicant: PROMERUS, LLC
    Inventors: OLEKSANDR BURTOVYY, WEI ZHANG, LEAH LANGSDORF, LARRY F. RHODES
  • Patent number: 10227433
    Abstract: A variety of polycycloalkyl polynorbornene monomers and polymers derived therefrom are disclosed and claimed. The polymers and copolymers as disclosed herein are useful for forming pervaporation membranes, among other uses.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: March 12, 2019
    Assignee: PROMERUS, LLC
    Inventors: Andrew Bell, Leah Langsdorf, Oleksandr Burtovyy
  • Patent number: 9765200
    Abstract: Embodiments in accordance with the present invention encompass polymer compositions that are useful in the assembly of microelectronic components onto a variety of substrate materials. Such polymer compositions providing for both holding the microelectronic components at desired positions on a substrate, providing fluxing for the solder bonding of such components to the substrate and remaining in place as an underfill for such components.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: September 19, 2017
    Assignee: PROMERUS, LLC
    Inventors: Christopher Apanius, Andrew Bell, Leah Langsdorf, W. C. Peter Tsang
  • Publication number: 20160369026
    Abstract: A variety of polycycloalkyl polynorbornene monomers and polymers derived therefrom are disclosed and claimed. The polymers and copolymers as disclosed herein are useful for forming pervaporation membranes, among other uses.
    Type: Application
    Filed: September 6, 2016
    Publication date: December 22, 2016
    Applicant: PROMERUS, LLC
    Inventors: ANDREW BELL, LEAH LANGSDORF, OLEKSANDR BURTOVYY
  • Patent number: 9468890
    Abstract: Embodiments in accordance with the present invention provide forming various polycycloalkyl polynorbornene polymers and copolymers which are useful for forming pervaporation membranes, the membranes themselves and methods of making such membranes.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: October 18, 2016
    Assignee: PROMERUS, LLC
    Inventors: Andrew Bell, Leah Langsdorf, Oleksandr Burtovyy
  • Patent number: 8729166
    Abstract: Embodiments in accordance with the present invention encompass polymer compositions that act as both a tack agent and a fluxing agent for the assembly of microelectronic components onto a variety of substrate materials. Such polymer compositions embodiments encompass a sacrificial polymer, a carrier solvent, a thermal acid generator and, optionally, formic acid.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: May 20, 2014
    Assignee: Promerus, LLC
    Inventors: Christopher Apanius, Andrew Bell, Leah Langsdorf, W. C. Peter Tsang
  • Patent number: 8729215
    Abstract: Embodiments according to the present invention relate to sacrificial polymer compositions that include polycarbonate polymers having repeat units derived from stereospecific polycyclic 2,3-diol monomers. The sacrificial polymer compositions also include an acid generator that is selected from at least one photoacid generator and/or at least one thermal acid generator. In addition, embodiments according to the present invention relate to a method of forming a structure that includes a three-dimensional space interposed between a substrate and an overcoat layer, and a method of temporarily bonding first and second substrates together, which make use of the polycarbonate polymers.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: May 20, 2014
    Assignee: Promerus, LLC
    Inventors: Andrew Bell, Robert A. Shick, Leah Langsdorf, Keitaro Seto, W. C. Peter Tsang
  • Publication number: 20140042090
    Abstract: Embodiments in accordance with the present invention provide forming various polycycloalkyl polynorbornene polymers and copolymers which are useful for forming pervaporation membranes, the membranes themselves and methods of making such membranes.
    Type: Application
    Filed: August 6, 2013
    Publication date: February 13, 2014
    Applicant: Promerus, LLC
    Inventors: Andrew Bell, Leah Langsdorf, Oleksandr Burtovyy
  • Publication number: 20140024750
    Abstract: Embodiments in accordance with the present invention encompass polymer compositions that act as both a tack agent and a fluxing agent for the assembly of microelectronic components onto a variety of substrate materials. Such polymer compositions embodiments encompass a sacrificial polymer, a carrier solvent, a thermal acid generator and, optionally, formic acid.
    Type: Application
    Filed: September 27, 2013
    Publication date: January 23, 2014
    Applicant: Promerus, LLC
    Inventors: Christopher Apanius, Andrew Bell, Leah Langsdorf, W. C. Peter Tsang
  • Publication number: 20140024799
    Abstract: Embodiments according to the present invention relate to sacrificial polymer compositions that include polycarbonate polymers having repeat units derived from stereospecific polycyclic 2,3-diol monomers. The sacrificial polymer compositions also include an acid generator that is selected from at least one photoacid generator and/or at least one thermal acid generator. In addition, embodiments according to the present invention relate to a method of forming a structure that includes a three-dimensional space interposed between a substrate and an overcoat layer, and a method of temporarily bonding first and second substrates together, which make use of the polycarbonate polymers.
    Type: Application
    Filed: September 27, 2013
    Publication date: January 23, 2014
    Applicant: Promerus, LLC
    Inventors: Andrew Bell, Robert A. Shick, Leah Langsdorf, Keitaro Seto, W. C. Peter Tsang
  • Publication number: 20130327815
    Abstract: Embodiments in accordance with the present invention encompass polymer compositions that are useful in the assembly of microelectronic components onto a variety of substrate materials. Such polymer compositions providing for both holding the microelectronic components at desired positions on a substrate, providing fluxing for the solder bonding of such components to the substrate and remaining in place as an underfill for such components.
    Type: Application
    Filed: August 13, 2013
    Publication date: December 12, 2013
    Applicant: Promerus, LLC
    Inventors: Christopher Apanius, Andrew Bell, Leah Langsdorf, W. C. Peter Tsang
  • Patent number: 8575248
    Abstract: Embodiments in accordance with the present invention encompass polymer compositions that act as both a tack agent and a fluxing agent for the assembly of microelectronic components onto a variety of substrate materials. Such polymer compositions embodiments encompass a sacrificial polymer, a carrier solvent, a thermal acid generator and, optionally, formic acid.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: November 5, 2013
    Assignee: Promerus, LLC
    Inventors: Christopher Apanius, Andrew Bell, Leah Langsdorf, W. C. Peter Tsang
  • Patent number: 8575297
    Abstract: Embodiments according to the present invention relate to sacrificial polymer compositions that include polycarbonate polymers having repeat units derived from stereospecific polycyclic 2,3-diol monomers. The sacrificial polymer compositions also include an acid generator that is selected from at least one photoacid generator and/or at least one thermal acid generator. In addition, embodiments according to the present invention relate to a method of forming a structure that includes a three-dimensional space interposed between a substrate and an overcoat layer, and a method of temporarily bonding first and second substrates together, which make use of the polycarbonate polymers.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: November 5, 2013
    Assignee: Promerus, LCC
    Inventors: Andrew Bell, Robert A. Shick, Leah Langsdorf, Keitaro Seto, W. C. Peter Tsang
  • Patent number: 8535454
    Abstract: Embodiments in accordance with the present invention encompass polymer compositions that are useful in the assembly of microelectronic components onto a variety of substrate materials. Such polymer compositions providing for both holding the microelectronic components at desired positions on a substrate, providing fluxing for the solder bonding of such components to the substrate and remaining in place as an underfill for such components.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: September 17, 2013
    Assignee: Promerus, LLC
    Inventors: Christopher Apanius, Andrew Bell, Leah Langsdorf, W. C. Peter Tsang