Patents by Inventor Robert L. Sammler

Robert L. Sammler 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: 20240026208
    Abstract: Cement slurries are prepared that comprise water, a hydraulic cement and particles of an oil-absorbent material. The particles are present in an amount sufficient to alter a property of a non-aqueous drilling fluid. The cement slurry is placed in a subterranean well, whereupon the slurry contacts residual drilling fluid on casing and formation surfaces. The oil-absorbent material in the cement slurry may reduce the mobility of the drilling fluid, thereby improving zonal isolation. The oil-absorbent material may be a polyolefin block copolymer.
    Type: Application
    Filed: December 1, 2021
    Publication date: January 25, 2024
    Inventors: Dipti Singh, Robert L. Sammler, Tzu-Chi Kuo, Ron Weeks, Dominic Perroni, Anatoly Medvedev
  • Publication number: 20230382797
    Abstract: The present invention provides a dry mix composition of a low-viscosity cellulose ether (50 to 750 mPa·s at 1 wt. % solids, at 20 C, and a 514 s-1 shear rate, using a strain-controlled rotational rheometer (for example, ARES-G2™, TA Instruments), a graded aggregate, and a hydraulic cement, or a granular wet cement composition of the cement, graded aggregate and an admixture therefor including the cellulose ether. The wet granular hydraulic cement composition behaves like asphalt compositions and has zero or near zero slump, a high lubricity and from 5 wt. % to less than 13 wt. % of water, or, preferably from greater than 5 to 10.5 wt. %, based on the total weight of the granular wet cement composition. The low-viscosity cellulose ether enables lubricity without impairing compaction and without causing air entrainment.
    Type: Application
    Filed: February 11, 2022
    Publication date: November 30, 2023
    Inventors: Yi Fan, Jorg Theuerkauf, Michael J. Radler, Stacey A. Saba, Kurt A. Koppi, Sean M. Keenan, Jessica R. Levin, Robert L. Sammler
  • Publication number: 20230348643
    Abstract: Embodiments of this disclosure are directed to ethylene-based polymers. The ethylene-based polymers are polymerized units derived from ethylene, diene, and optionally one or more C3-C12?-olefins. The ethylene-based polymer includes a melt strength greater than negative 17 times the log base 10 of the melt index plus 25 ((MS)>?17*log (MI)+25). In the equation, MS is the melt strength in cN and MI is the melt index in g/10 min according to ASTM D1238. The ethylene-based polymer also includes an average g? that is greater than 0.70. The average g? is an intrinsic viscosity ratio determined by gel permeation chromatography using a triple detector.
    Type: Application
    Filed: March 26, 2021
    Publication date: November 2, 2023
    Applicant: Dow Global Technologies LLC
    Inventors: Robert D.J. Froese, Keran Lu, Robert L. Sammler, Cornelis F.J. Den Doelder, Teresita Kashyap, Luca Martinetti
  • Publication number: 20230125442
    Abstract: Embodiments of this disclosure are directed to ethylene-based polymers. The ethylene-based polymer are polymerized units derived from ethylene, diene, and optionally, one or more C3-C12 ?-olefins. The ethylene-based polymer includes a melt viscosity ratio (V0.1/V100) at 190 C greater than 20. The V0.1 is the viscosity of the ethylene-based polymer at 190 C at a frequency of 0.1 radians/second, and the V100 is the viscosity of the ethylene-based polymer at 190 C at a frequency of 100 radians/second. Additionally, the ethylene-based polymer includes an average g greater than 0.86, where the average g? is an intrinsic viscosity ratio determined by gel permeation chromatography using a triple detector.
    Type: Application
    Filed: March 26, 2021
    Publication date: April 27, 2023
    Applicant: Dow Global Technologies LLC
    Inventors: Robert D.J. Froese, Keran Lu, Robert L. Sammler, Cornelis F.J. Den Doelder
  • Publication number: 20230128663
    Abstract: The ethylene-based polymers include a low molecular weight polymer fraction and a high molecular weight polymer fraction, which are divided by Smax on a molecular weight distribution (MWD) curve determined via absolute gel permeation chromatography. The low molecular weight polymer fraction and the high molecular weight polymer fraction include a Ladder character, L, defined for a given absolute molecular weight (MW) as the fit of the log of the intrinsic viscosity [h] versus the log of the absolute MW (M) curve using the expression, log[?]=log(?)+? log(M)?L*? log(2) according to a Mark-Houwink-Sakurada curve, in which log(?) is the intercept and ax is the slope. The low molecular weight polymer fraction has an MW below Smax and all values of L between ?0.35 to 0.35; and the high molecular weight polymer fraction has an MW above Smax and a maximum value of L between 0.8 and 1.5.
    Type: Application
    Filed: March 26, 2021
    Publication date: April 27, 2023
    Applicant: Dow Global Technologies LLC
    Inventors: Robert D.J. Froese, Keran Lu, Robert L. Sammler
  • Patent number: 11633729
    Abstract: A polymeric bead having radius R wherein the polymer comprises 0.3% to 20% by weight, based on the weight of the polymer, of polymerized units of one or more multifunctional vinyl monomer and 80% to 99.7% by weight, based on the weight of the polymer, of polymerized units of one or more monofunctional vinyl monomer, (a) wherein the polymerized units of multifunctional vinyl monomer have radial distribution factor MR of 0.9 to 1.1, and (b) wherein some of the vinyl groups in the polymerized units of multivinyl monomer are unreacted, and the unreacted vinyl groups have a radial distribution factor VR of 2.5 or higher.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: April 25, 2023
    Assignee: DDP SPECIALTY ELECTRONIC MATERIALS US 5, LLC
    Inventors: Kenneth Laughlin, Alfred K. Schultz, John Reffner, Oscar David Redwine, Robert L. Sammler, Andrew M. Savo
  • Publication number: 20220227905
    Abstract: Embodiments of this disclosure include polymers comprising the polymerized product of ethylene, at least one diene comonomer, and optionally at least one C3 to C14 comonomer. The polymer comprises tri-functional long-chain branches resulting from the diene that occur at a frequency of at least 0.03 per 1000 carbon atoms of the polymer.
    Type: Application
    Filed: March 27, 2020
    Publication date: July 21, 2022
    Applicant: Dow Global Technologies LLC
    Inventors: Robert D. J. Froese, Teresita Kashyap, Oscar D. Redwine, Daniel J. Arriola, Robert L. Sammler, Cornelis F. J. Den Doelder
  • Publication number: 20200216590
    Abstract: A polymeric bead having radius R wherein the polymer comprises 0.3% to 20% by weight, based on the weight of the polymer, of polymerized units of one or more multifunctional vinyl monomer and 80% to 99.7% by weight, based on the weight of the polymer, of polymerized units of one or more monofunctional vinyl monomer, (a) wherein the polymerized units of multifunctional vinyl monomer have radial distribution factor MR of 0.9 to 1.1, and (b) wherein some of the vinyl groups in the polymerized units of multivinyl monomer are unreacted, and the unreacted vinyl groups have a radial distribution factor VR of 2.5 or higher.
    Type: Application
    Filed: September 25, 2018
    Publication date: July 9, 2020
    Inventors: Kenneth Laughlin, Alfred K. Schultz, John Reffner, Oscar David Redwine, Robert L. Sammler, Andrew M. Savo
  • Patent number: 10624376
    Abstract: A process for preparing an aqueous solution of a methylcellulose having anhydroglucose units joined by 1-4 linkages wherein hydroxy groups of anhydroglucose units are substituted with methyl groups such that s23/s26 is 0.36 or less, wherein s23 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 3-positions of the anhydroglucose unit are substituted with methyl groups and wherein s26 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 6-positions of the anhydroglucose unit are substituted with methyl groups, comprises the step of mixing the methylcellulose with an aqueous liquid at a temperature of not higher than 10° C. at a shear rate of at least 1000 s?1.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: April 21, 2020
    Inventors: Puspendu Deo, Kathryn Brown, David E. Wallick, Robert L. Sammler, Yongfu Li
  • Publication number: 20180042284
    Abstract: A process for preparing an aqueous solution of a methylcellulose having anhydroglucose units joined by 1-4 linkages wherein hydroxy groups of anhydroglucose units are substituted with methyl groups such that s23/s26 is 0.36 or less, wherein s23 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 3-positions of the anhydroglucose unit are substituted with methyl groups and wherein s26 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 6-positions of the anhydroglucose unit are substituted with methyl groups, comprises the step of mixing the methylcellulose with an aqueous liquid at a temperature of not higher than 10° C. at a shear rate of at least 1000 s?1.
    Type: Application
    Filed: October 25, 2017
    Publication date: February 15, 2018
    Inventors: Puspendu Deo, Kathryn Brown, David E. Wallick, Robert L. Sammler, Yongfu Li
  • Patent number: 9879138
    Abstract: The present invention provides thermosetting aqueous binder compositions of one or more diprimary diamine, e.g. lysine, or poly(primary amine), e.g. polyethylenimine, and one or more reducing sugar in which the number of equivalents of primary amine relative to the number of equivalents of carbonyl groups in the reducing sugar ranges from 0.4:1 to 2:1, the binders being suitable for use on fiber, nonwoven, woven web and finely divided substrates. The binders are at least substantially formaldehyde free, need no polycarboxylic or polycarboxylate component, and yet provide excellent hot wet tensile strength when cured for as little time as a minute or less in use.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: January 30, 2018
    Assignees: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: William Finch, Haksu Lee, Charles J. Rand, Robert L. Sammler, Frances J. Timmers, Barry Weinstein
  • Patent number: 9826768
    Abstract: A process for preparing an aqueous solution of a methylcellulose having anhydroglucose units joined by 1-4 linkages wherein hydroxy groups of anhydroglucose units are substituted with methyl groups such that s23/s26 is 0.36 or less, wherein s23 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 3-positions of the anhydroglucose unit are substituted with methyl groups and wherein s26 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 6-positions of the anhydroglucose unit are substituted with methyl groups, comprises the step of mixing the methylcellulose with an aqueous liquid at a temperature of not higher than 10° C. at a shear rate of at least 1000 s?1.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: November 28, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Puspendu Deo, Kathryn Brown, David E. Wallick, Robert L. Sammler, Yongfu Li
  • Patent number: 9820498
    Abstract: An aqueous solution comprising (a) one or more mono-, di- and/or oligosaccharides and (b) a methylcellulose, wherein the methylcellulose has anhydroglucose units joined by 1-4 linkages wherein hydroxy groups of anhydroglucose units are substituted with methyl groups such that s23/s26 is 0.36 or less, is produced by i) mixing the methylcellulose with an aqueous liquid comprising one or more mono-, di- and/or oligosaccharides at a shear rate of at least 1000 s?1 or ii) mixing one or more mono-, di- and/or oligosaccharides with the methylcellulose and/or an aqueous liquid before, simultaneously with or after mixing the methylcellulose with the aqueous liquid at a shear rate of at least 1000 s?1.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: November 21, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Puspendu Deo, Roland Adden, Matthias Knarr, Robert L. Sammler, Kathryn Brown
  • Patent number: 9757465
    Abstract: A liquid composition comprises an organic diluent and at least one cellulose ether having anhydroglucose units joined by 1-4 linkages and having methyl groups, hydroxyalkyl groups, and optionally alkyl groups being different from methyl as substituents such that hydroxyl groups of anhydroglucose units are substituted with methyl groups such that s23/s26 is 0.29 or less, wherein s23 is the molar fraction of anhydroglucose units wherein only the two hydroxyl groups in the 2- and 3-positions of the anhydroglucose unit are substituted with a methyl group and wherein s26 is the molar fraction of anhydroglucose units wherein only the two hydroxyl groups in the 2- and 6-positions of the anhydroglucose unit are substituted with a methyl group. The liquid composition can be used for preparing a solid dispersion of an active ingredient in a cellulose ether.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: September 12, 2017
    Inventors: Roland Adden, Robert L. Sammler, Meinolf Brackhagen, Nicholas S. Grasman, Oliver Petermann, Steven J. Guillaudeu
  • Patent number: 9616036
    Abstract: A sustained release dosage form comprises an active ingredient blended with a polymeric matrix. At least a portion of the polymeric matrix is formed by a cellulose ether having an onset dissolution temperature of at least 40° C., having anhydroglucose units joined by 1-4 linkages and having methyl groups, hydroxyalkyl groups, and optionally alkyl groups being different from methyl as substituents such that the cellulose ether has an MS (hydroxyalkyl) of 0.05 to 1.00, and hydroxyl groups of anhydroglucose units are substituted with methyl groups such that [s23/s26?0.2*MS(hydroxyalkyl)] is 0.31 or less, wherein s23 is the molar fraction of anhydroglucose units wherein only the two hydroxyl groups in the 2- and 3-positions of the anhydroglucose unit are substituted with a methyl group and wherein s26 is the molar fraction of anhydroglucose units wherein only the two hydroxyl groups in the 2- and 6-positions of the anhydroglucose unit are substituted with a methyl group.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: April 11, 2017
    Inventors: Meinolf Brackhagen, Roland Adden, Oliver Petermann, Robert L. Sammler, David E. Wallick
  • Patent number: 9591870
    Abstract: Cellulose ethers are described herein which are useful in food compositions. In these cellulose ethers the ether substituents are methyl groups, hydroxyalkyl groups, and optionally alkyl groups being different from methyl, the cellulose ether has a DS(methyl) of from 1.65 to 2.20, an MS(hydroxyalkyl) of from 0.10 to 1.00, and hydroxy groups of anhydroglucose units are substituted with methyl groups such that [s23/s26?0.2*MS(hydroxyalkyl)] is 0.35 or less, wherein s23 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 3-positions of the anhydroglucose unit are substituted with methyl groups and wherein s26 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 6-positions of the anhydroglucose unit are substituted with methyl groups.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: March 14, 2017
    Inventors: Britta Huebner-Keese, Carol E. Mohler, Meinolf Brackhagen, Roland Adden, Robert L. Sammler, Jonathan D. Moore, Matthias Knarr
  • Patent number: 9320799
    Abstract: An esterified cellulose ether comprises (i) aliphatic monovalent acyl groups or (ii) groups of the formula —C(O)—R—COOA wherein R is a divalent aliphatic or aromatic hydrocarbon group and A is hydrogen or a cation or (iii) a combination of aliphatic monovalent acyl groups and groups of the formula —C(O)—R—COOA, wherein the cellulose ether has anhydroglucose units joined by 1-4 linkages and has methyl groups, hydroxyalkyl groups, and optionally alkyl groups being different from methyl as substituents such that the esterified cellulose ether has an MS (hydroxyalkyl) of 0.05 to 1.00, and hydroxyl groups of anhydroglucose units are substituted with methyl groups such that [s23/s26?0.2*MS(hydroxyalkyl)] is 0.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: April 26, 2016
    Inventors: Robert L. Schmitt, Robert L. Sammler, Meinolf Brackhagen, Oliver Petermann, Roland Adden, Nicholas S. Grasman, Steven J. Guillaudeu
  • Patent number: 9295712
    Abstract: A flowable or spoonable medicament, food, food ingredient or food supplement is useful for inducing satiety. It comprises a protein and a methylcellulose (MC), wherein the weight ratio w(protein)/w(MC) is at least 0.7/1.0 and the methylcellulose has anhydroglucose units joined by 1-4 linkages wherein hydroxy groups of anhydroglucose units are substituted with methyl groups such that s23/s26 is 0.36 or less, wherein s23 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 3-positions of the anhydroglucose unit are substituted with methyl groups and wherein s26 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 6-positions of the anhydroglucose unit are substituted with methyl groups.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: March 29, 2016
    Inventors: Britta Huebner-Keese, Matthias Knarr, Roland Adden, Robert L. Sammler, Anne Adden
  • Publication number: 20160081384
    Abstract: A process for preparing an aqueous solution of a methylcellulose having anhydroglucose units joined by 1-4 linkages wherein hydroxy groups of anhydroglucose units are substituted with methyl groups such that s23/s26 is 0.36 or less, wherein s23 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 3-positions of the anhydroglucose unit are substituted with methyl groups and wherein s26 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 6-positions of the anhydroglucose unit are substituted with methyl groups, comprises the step of mixing the methylcellulose with an aqueous liquid at a temperature of not higher than 10° C. at a shear rate of at least 1000 s?1.
    Type: Application
    Filed: April 8, 2014
    Publication date: March 24, 2016
    Applicant: Dow Global Technologies LLC
    Inventors: Puspendu Deo, Kathryn Brown, David E. Wallick, Robert L. Sammler, Yongfu Li
  • Publication number: 20160015058
    Abstract: An aqueous solution comprising (a) one or more mono-, di- and/or oligosaccharides and (b) a methylcellulose, wherein the methylcellulose has anhydroglucose units joined by 1-4 linkages wherein hydroxy groups of anhydroglucose units are substituted with methyl groups such that s23/s26 is 0.36 or less, is produced by i) mixing the methylcellulose with an aqueous liquid comprising one or more mono-, di- and/or oligosaccharides at a shear rate of at least 1000 s?1 or ii) mixing one or more mono-, di- and/or oligosaccharides with the methylcellulose and/or an aqueous liquid before, simultaneously with or after mixing the methylcellulose with the aqueous liquid at a shear rate of at least 1000 s?1.
    Type: Application
    Filed: April 8, 2014
    Publication date: January 21, 2016
    Inventors: Puspendu Deo, Roland Adden, Matthias Knarr, Robert L. Sammler, Kathryn Brown