Patents by Inventor Bernard E. Obi
Bernard E. Obi 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).
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Patent number: 10583637Abstract: The present disclosure provides a coextruded multi layer film. The coextruded multilayer film includes a core component having from 15 to 1000 alternating layers of layer A and layer B. Layer A has a thickness from 30 nm to 1000 nm and includes a propylene-based polymer having a crystallization temperature (T1c). Layer B includes a second polymer having a glass transition temperature (T2g), wherein T1c<T2g. Layer A has an effective moisture permeability less than 0.40 g-mil/100 in2/day.Type: GrantFiled: June 25, 2014Date of Patent: March 10, 2020Assignee: Dow Global Technologies LLCInventors: Steven R. Jenkins, Patrick Chang Dong Lee, Joseph Dooley, Donald E. Kirkpatrick, Bernard E. Obi
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Patent number: 10336041Abstract: The present disclosure provides a coextruded multilayer films. In one embodiment, the coextruded multilayer film includes a core component having from 15 to 1000 alternating layers of layer A and layer B. Layer A has a thickness from 30 nm to 1000 nni and layer A includes a propylene-based polymer having a crystallization temperature (Tpc). Layer B includes an ethylene-based polymer having a crystallization temperature (TEc), wherein Tpc<TEc. Layer A has an effective moisture permeability less than 0.40 g-mil/100 in2/day.Type: GrantFiled: June 25, 2014Date of Patent: July 2, 2019Assignee: Dow Global Technologies LLCInventors: Steven R. Jenkins, Patrick Chang Dong Lee, Joseph Dooley, Donald E. Kirkpatrick, Bernard E. Obi
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Patent number: 10259154Abstract: The present disclosure provides a coextruded multilayer film The coextruded multilayer film includes a core component having from 15 to 1000 alternating layers of layer A and layer B. Layer A has a thickness from 10 nm to 1000 nm and includes a beta-propylene-based polymer having a crystallization temperature (T1c). Layer B includes a second polymer having a glass transition temperature (T2g), wherein T1C<T2g. Layer A has an effective moisture permeability less than 6.2 g-mil/m2/24 hrs.Type: GrantFiled: May 27, 2015Date of Patent: April 16, 2019Assignee: Dow Global Technologies LLCInventors: Steven R. Jenkins, Patrick Chang Dong Lee, Joseph Dooley, Donald E. Kirkpatrick, Bernard E. Obi
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Patent number: 9688899Abstract: The present invention relates to compositions and methods for reducing or preventing the loss of drilling fluids and other well servicing fluids into a subterranean formation during drilling or construction of boreholes in said formation. Specifically, this invention comprises a curable composition capable of free radical polymerization for creating lost circulation material in-situ.Type: GrantFiled: May 3, 2012Date of Patent: June 27, 2017Assignee: Dow Global Technologies LLCInventors: Phillip S. Athey, Bernard E. Obi, Michael K. Poindexter
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Publication number: 20170120495Abstract: The present disclosure provides a coextruded multilayer film The coextruded multilayer film includes a core component having from 15 to 1000 alternating layers of layer A and layer B. Layer A has a thickness from 10 nm to 1000 nm and includes a beta-propylene-based polymer having a crystallization temperature (T1c). Layer B includes a second polymer having a glass transition temperature (T2g), wherein T1C<T2g. Layer A h an effective moisture permeability less than 6.2 g-mil/m2/24 hrs.Type: ApplicationFiled: May 27, 2015Publication date: May 4, 2017Inventors: Steven R. JENKINS, Patrick Chang Dong LEE, Joseph DOOLEY, Donald E. KIRKPATRICK, Bernard E. OBI
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Publication number: 20160152009Abstract: The present disclosure provides a coextruded multi layer film. The coextruded multilayer film includes a core component having from 15 to 1000 alternating layers of layer A and layer B. Layer A has a thickness from 30 nm to 1000 nm and includes a propylene-based polymer having a crystallization temperature (T1c). Layer B includes a second polymer having a glass transition temperature (T2g), wherein l\ c<T2g. Layer A has an effective moisture permeability less than 0.40 g-mil/100 in2/day.Type: ApplicationFiled: June 25, 2014Publication date: June 2, 2016Inventors: Steven R. Jenkins, Patrick Chang Dong Lee, Joseph Dooley, Donald E. Kirkpatrick, Bernard E. Obi
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Publication number: 20160144604Abstract: The disclosure provides a coextruded multilayer film. The coextruded multilayer film includes a core component having from 15 to 1000 alternating layers of layer A and layer B. Layer A has a thickness from 100 nm to 500 nm and includes an ethylene-based polymer. Layer B has a thickness from 100 nm to 500 nm and includes a cyclic olefin polymer (“COP”). Layer A has an effective moisture permeability less than 0.20 g-mil/100 in2/day and an effective oxygen permeability less than 150 cc-mil/100 in2/day/atm. In an embodiment, the multilayer film includes skin layers.Type: ApplicationFiled: June 25, 2014Publication date: May 26, 2016Inventors: Steven R. Jenkins, Patrick Chang Dong Lee, Joseph Dooley, Donald E. Kirkpatrick, Bernard E. Obi
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Publication number: 20160144605Abstract: The present disclosure provides a coextruded multilayer films. In one embodiment, the coextruded multilayer film includes a core component having from 15 to 1000 alternating layers of layer A and layer B. Layer A has a thickness from 30 nm to 1000 nni and layer A includes a propylene-based polymer having a crystallization temperature (TPc). Layer B includes an ethylene-based polymer having a crystallization temperature (TEc), wherein TPc<TEc. Layer A has an effective moisture permeability less than 0.40 g-mil/100 in2/day.Type: ApplicationFiled: June 25, 2014Publication date: May 26, 2016Inventors: Steven R. Jenkins, Patrick Chang Dong Lee, Joseph Dooley, Donald E. Kirkpatrick, Bernard E. Obi
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Patent number: 9290605Abstract: Flexible polyurethane foams are made using certain hydrolysable silane compounds in the foam formulation. The hydrolysable silane compounds contain at least one isocyanate-reactive group and at least one hydrolysable silane group. The presence of the hydrolysable silane compound in the foam formulation leads to improved tensile, tear and elongation properties without an adverse effect on other important foam properties such as resiliency and hysteresis loss.Type: GrantFiled: August 16, 2012Date of Patent: March 22, 2016Assignee: Dow Global Technologies LLCInventors: Parvinder S. Walia, Bernard E. Obi, Venkat S. Minnikanti, William A. Koonce, Kamesh R. Vyakaranam, Ling Zhang, Sabrina Fregni
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Patent number: 9266996Abstract: The present invention discloses a structure comprising a plurality of three dimensional cells, wherein each cell comprises exterior walls defining an interior void wherein the walls comprise a plurality of struts and windows, the struts forming borders for the plurality of windows, wherein the struts have a plurality of pores. The present invention further discloses a viscoelastic foam having a ratio of elastic modulus (E?) at 20° C. to 25% compression force deflection (CFD) of 25 to 125.Type: GrantFiled: October 5, 2012Date of Patent: February 23, 2016Assignee: Dow Global Technologies LLCInventors: Bernard E. Obi, Alan K. Schrock, Rogelio R. Gamboa, Asjad Shafi, Kaoru Aou
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Patent number: 9255174Abstract: Embodiments of the present invention relate to polyurethane foams having high air flow while maintaining viscoelastic properties. In one embodiment, a reaction system for preparation of a viscoelastic polyurethane foam is provided. The reaction system comprises (a) a polyisocyanate component and (b) an isocyanate reactive component. The isocyanate reactive component comprises (i) from 35 to 74% by weight of the isocyanate reactive component of one or more propylene oxide rich (PO-rich) polyols having a combined number average equivalent weight from 200 to 500, (ii) from 24 to 50% by weight of the isocyanate reactive component of one or more ethylene oxide rich (EO-rich) polyols having a combined number average equivalent weight from 200 to 2,800, and (iii) from 2 to 10% by weight of the isocyanate reactive component of one or more butylene oxide rich (BO-rich) polyethers having a number average equivalent weight of 2,000 or more.Type: GrantFiled: August 23, 2011Date of Patent: February 9, 2016Assignee: Dow Global Technologies LLCInventors: Kaoru Aou, Rogelio R. Gamboa, Bernard E. Obi
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Patent number: 8791168Abstract: A viscoelastic polyurethane foam is the reaction product of at least one natural oil derived polyol and at least one aromatic compound having an average of more than one isocyanate group. A viscoelastic polyurethane foam has an air flow of at least about 0.5 l/s, wherein the foam is formed in the substantial absence of copolymer polyol and has not (yet) been mechanically reticulated and is preferably prepared using at least one natural oil derived polyol, more preferably in an amount of at least about 20 weight percent of the polyols used. A process of preparing a viscoelastic foam, comprises steps of (A) forming a reaction mixture including at least one polyol, at least one polyisocyanate, water, at least one catalyst wherein a the polyol comprises at least one natural oil derived polyol; and (B) subjecting the reaction mixture to conditions sufficient to result in the reaction mixture to expand and cure to form a viscoelastic polyurethane foam.Type: GrantFiled: September 7, 2007Date of Patent: July 29, 2014Assignees: Dow Global Technologies, Dow Brasil Sudeste Industrial LtdaInventors: David A. Babb, Bernard E. Obi, Robert E. O'Neill, Alvaro Pauperio-Neto
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Publication number: 20140179815Abstract: Flexible polyurethane foams are made using certain hydrolysable silane compounds in the foam formulation. The hydrolysable silane compounds contain at least one isocyanate-reactive group and at least one hydrolysable silane group. The presence of the hydrolysable silane compound in the foam formulation leads to improved tensile, tear and elongation properties without an adverse effect on other important foam properties such as resiliency and hysteresis loss.Type: ApplicationFiled: August 16, 2012Publication date: June 26, 2014Applicant: DOW GLOBAL TECHNOLOGIES LLCInventors: Parvinder S. Walia, Bernard E. Obi, Venkat S. Minnikanti, William A. Koonce, Kamesh R. Vyakaranam, Ling Zhang, Sabrina Fregni
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Patent number: 8686058Abstract: Embodiments of the present invention disclose viscoelastic foams having a renewable natural resource contents of between about 1 and about 25 wt % of the foam. The foams may have a ratio of elastic modulus (E?) at 20° C. to 25% compression force deflection (CFD) of 25 to 125.Type: GrantFiled: July 15, 2009Date of Patent: April 1, 2014Assignee: Dow Global Technologies LLCInventors: Bernard E. Obi, Alan K. Schrock, Rogelio R. Gamboa, Asjad Shafi
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Publication number: 20140057811Abstract: The present invention relates to compositions and methods for reducing or preventing the loss of drilling fluids and other well servicing fluids into a subterranean formation during drilling or construction of boreholes in said formation. Specifically, this invention comprises a curable composition capable of free radical polymerization for creating lost circulation material in-situ.Type: ApplicationFiled: May 3, 2012Publication date: February 27, 2014Applicant: DOW GLOBAL TECHNOLOGIES LLCInventors: Phillip S. Athey, Bernard E. Obi, Michael K. Poindexter
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Publication number: 20130178548Abstract: Embodiments of the present invention relate to polyurethane foams having high air flow while maintaining viscoelastic properties. In one embodiment, a reaction system for preparation of a viscoelastic polyurethane foam is provided. The reaction system comprises (a) a polyisocyanate component and (b) an isocyanate reactive component. The isocyanate reactive component comprises (i) from 35 to 74% by weight of the isocyanate reactive component of one or more propylene oxide rich (PO-rich) polyols having a combined number average equivalent weight from 200 to 500, (ii) from 24 to 50% by weight of the isocyanate reactive component of one or more ethylene oxide rich (EO-rich) polyols having a combined number average equivalent weight from 200 to 2,800, and (iii)from 2 to 10% by weight of the isocyanate reactive component of one or more butylene oxide rich (BO-rich) polyethers having a number average equivalent weight of 2,000 or more.Type: ApplicationFiled: August 23, 2011Publication date: July 11, 2013Applicant: DOW GLOBAL TECHNOLOGIES LLCInventors: Kaoru Aou, Rogelio R. Gamboa, Bernard E. Obi
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Publication number: 20130085200Abstract: Polyurethane foams and methods for making polyurethane foams are provided. The method may comprise forming a reaction mixture including a toluene diisocyanate (TDI) component, an isocyanate reactive component comprising one or more propylene oxide rich (PO-rich) polyols, one or more ethylene oxide rich (EO-rich) polyols having a combined number average equivalent weight from 100 to 500 comprising from 10% to 28% by weight of the total isocyanate reactive component, water, and a catalyst component comprising at least one catalyst, and subjecting the reaction mixture to conditions sufficient to result in the reaction mixture to expand and cure to form a viscoelastic polyurethane foam having a resilience of less than 25%, as measured according to ASTM D3574 Test H.Type: ApplicationFiled: June 20, 2011Publication date: April 4, 2013Applicant: DOW GLOBAL TECHNOLOGIES LLCInventors: Kaoru Aou, Rogelio R. Gamboa, Bernard E. Obi, Asjad Shafi
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Publication number: 20110136930Abstract: Viscoelastic polyurethane foam is prepared by using certain additives in the foam formulation. The additives include 1) alkali metal or transition metal salts of carboxylic acids; 2) 1,3,5-tris alkyl- or 1,3,5-tris (N,N-dialkyl amino alkyl)-hexahydro-s-triazine compounds; and 3) C1-12 carboxylate salts of quaternary ammonium compounds. The additives significantly improve processing and in particular permit the use of higher isocyanate indices, which helps to improve foam physical properties.Type: ApplicationFiled: February 11, 2011Publication date: June 9, 2011Applicant: Dow Global Technologies LLC (Formerly Known as Dow Global Technologies Inc.)Inventors: Denise R. Butler, Bernard E. Obi, Rogelio R. Gamboa, Robert E. O'Neill
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Publication number: 20110124762Abstract: Embodiments of the present invention disclose viscoelastic foams having a renewable natural resource contents of between about 1 and about 25 wt % of the foam. The foams may have a ratio of elastic modulus (E?) at 20° C. to 25% compression force deflection (CFD) of 25 to 125.Type: ApplicationFiled: July 15, 2009Publication date: May 26, 2011Applicant: Dow Global Technologies LLCInventors: Bernard E. Obi, Alan K. Schrock, Rogelio R. Gamboa, Asjad Shafi
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Publication number: 20090306237Abstract: A viscoelastic polyurethane foam is the reaction product of at least one natural oil derived polyol and at least one aromatic compound having an average of more than one isocyanate group. A viscoelastic polyurethane foam has an air flow of at least about 0.5 l/s, wherein the foam is formed in the substantial absence of copolymer polyol and has not (yet) been mechanically reticulated and is preferably prepared using at least one natural oil derived polyol, more preferably in an amount of at least about 20 weight percent of the polyols used. A process of preparing a viscoelastic foam, comprises steps of (A) forming a reaction mixture including at least one polyol, at least one polyisocyanate, water, at least one catalyst wherein a the polyol comprises at least one natural oil derived polyol; and (B) subjecting the reaction mixture to conditions sufficient to result in the reaction mixture to expand and cure to form a viscoelastic polyurethane foam.Type: ApplicationFiled: September 7, 2007Publication date: December 10, 2009Applicants: Dow Global Technologies Inc., Dow Brasil Sudeste Industrial Ltda.Inventors: David A. Babb, Bernard E. Obi, Robert E. O'Neill, Alvaro Pauperio-Neto