Patents by Inventor Chor Huang
Chor Huang 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: 10077412Abstract: Provided are a viscosity modifier for lubricating oils for obtaining an additive composition for lubricating oils having excellent fluidity in a wide temperature range from low temperature to high temperature; and said additive composition for lubricating oils. Further provided are a viscosity modifier for lubricating oils for obtaining a lubricating oil composition capable of reducing viscosity in good balance in a wide temperature range from low temperature to high temperature; and said lubricating oil composition. The viscosity modifier for lubricating oils includes an ethylene ?-olefin copolymer (A) which includes 30 to 50 mole % of structural units derived from at least one ?-olefin selected from ?-olefins having 4 and 5 carbon atoms and 50 to 70 mole % of structural units derived from ethylene (with the proviso that the total of all structural units of said copolymer is 100 mole %) and which satisfies specific requirements (a), (b), and (c).Type: GrantFiled: March 27, 2015Date of Patent: September 18, 2018Assignees: MITSUI CHEMICALS, INC., THE LUBRIZOL CORPORATIONInventors: Atsushi Yamamoto, Terufumi Suzuki, Kenta Ide, Chor Huang
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Publication number: 20170175028Abstract: Provided are a viscosity modifier for lubricating oils for obtaining an additive composition for lubricating oils having excellent fluidity in a wide temperature range from low temperature to high temperature; and said additive composition for lubricating oils. Further provided are a viscosity modifier for lubricating oils for obtaining a lubricating oil composition capable of reducing viscosity in good balance in a wide temperature range from low temperature to high temperature; and said lubricating oil composition. The viscosity modifier for lubricating oils includes an ethylene ?-olefin copolymer (A) which includes 30 to 50 mole % of structural units derived from at least one ?-olefin selected from ?-olefins having 4 and 5 carbon atoms and 50 to 70 mole % of structural units derived from ethylene (with the proviso that the total of all structural units of said copolymer is 100 mole %) and which satisfies specific requirements (a), (b), and (c).Type: ApplicationFiled: March 27, 2015Publication date: June 22, 2017Applicants: MITSUI CHEMICALS, INC., THE LUBRIZOL CORPORATIONInventors: Atsushi YAMAMOTO, Terufumi SUZUKI, Kenta IDE, Chor HUANG
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Patent number: 9045574Abstract: It is an object to provide a lubricating oil composition having low-temperature properties and fuel efficiency at high temperatures which are superior to those of conventional lubricating oil compositions, and to provide a viscosity modifier for lubricating oils and an additive composition for lubricating oils which are used for obtaining said composition. The viscosity modifier for lubricating oils of the present invention comprises a propylene copolymer (A) which has a density of 875 kg/m3 or less and which comprises 60 mole % or more of structural unit derived from propylene.Type: GrantFiled: September 28, 2009Date of Patent: June 2, 2015Assignees: MITSUI CHEMICALS, INC., THE LUBRIZOL CORPORATIONInventors: Satoshi Ikeda, Nozomi Kamiya, Hiroshi Hoya, Jumpei Tanaka, Chor Huang
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Patent number: 8772211Abstract: The disclosed invention relates to a composition comprising an oil of lubricating viscosity, a hydrogenated copolymer of an olefin block and vinyl aromatic block, wherein the polymer is optionally functionalized, and a star polymer. Use of the composition as a lubricating composition is disclosed.Type: GrantFiled: July 6, 2010Date of Patent: July 8, 2014Assignee: The Lubrizol CorporationInventors: Jack C. Kelley, Chor Huang
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Publication number: 20140005086Abstract: The disclosed invention relates to lubricant compositions containing viscosity index improvers in the form of polymers comprising structural units derived from ethylene, propylene and butylenes.Type: ApplicationFiled: December 6, 2011Publication date: January 2, 2014Applicant: THE LUBRIZOL CORPORATIONInventors: Chor Huang, David Price, Jack C. Kelley
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Patent number: 8524645Abstract: A lubricant composition comprising an oil of lubricating viscosity; (A) 0.05 to 1.5 percent by weight of a copolymer comprising 70 to 79 percent by weight of units derived from ethylene (“E”), having a Mw of 50,000 to 100,000, Mw/ Mn less than 3, density (“D”) of 860 to 896 kg/m3, and a melting point (“Tm”) of 15° C. to 60° C., wherein E and Tm fulfill the expression 3.44E?206?Tm; and (B) 0.05 to 1.5 percent by weight of a block copolymer comprising a first block which comprises a vinyl aromatic comonomer and a second block which comprises a diene comonomer, the diene monomer-containing block being hydrogenated; wherein the weight ratio (A):(B) is 20:80 to 60:40; exhibits good low temperature performance and durability.Type: GrantFiled: July 12, 2010Date of Patent: September 3, 2013Assignee: The Lubrizol CorporationInventors: Chor Huang, Lewis Breon
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Patent number: 8354362Abstract: The invention provides a lubricating composition containing an oil of lubricating viscosity and a hydrogenated copolymer of an olefin block and vinyl aromatic block, wherein the copolymer is optionally functionalized. The invention further provides a method for preparing a hydrogenated copolymer; and the use of the lubricating composition.Type: GrantFiled: March 26, 2007Date of Patent: January 15, 2013Assignee: The Lubrizol CorporationInventors: David Price, William Barton, Chor Huang, Michael Sutton, Mark Davies, Rodney J. McAtee, Mark F. Wilkes, Stephen J. Cook
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Publication number: 20120190601Abstract: It is an object to provide a lubricating oil composition having low-temperature properties and fuel efficiency at high temperatures which are superior to those of conventional lubricating oil compositions, and to provide a viscosity modifier for lubricating oils and an additive composition for lubricating oils which are used for obtaining said composition. The viscosity modifier for lubricating oils of the present invention comprises a propylene copolymer (A) which has a density of 875 kg/m3 or less and which comprises 60 mole % or more of structural unit derived from propylene.Type: ApplicationFiled: September 28, 2009Publication date: July 26, 2012Inventors: Satoshi Ikeda, Nozomi Kamiya, Hiroshi Hoya, Jumpei Tanaka, Chor Huang
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Publication number: 20120157364Abstract: The disclosed invention relates to a composition comprising an oil of lubricating viscosity, a hydrogenated copolymer of an olefin block and vinyl aromatic block, wherein the polymer is optionally functionalized, and a star polymer. Use of the composition as a lubricating composition is disclosed.Type: ApplicationFiled: July 6, 2010Publication date: June 21, 2012Applicant: THE LUBRIZOL CORPORATIONInventors: Jack C. Kelley, Chor Huang
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Viscosity Improver Compositions Providing Improved LowTemperature Characteristics to Lubricating Oil
Publication number: 20100292114Abstract: A lubricant composition comprising an oil of lubricating viscosity; (A) 0.05 to 1.5 percent by weight of a copolymer comprising 70 to 79 percent by weight of units derived from ethylene (“E”), having a Mw of 50,000 to 100,000, Mw/ Mn less than 3, density (“D”) of 860 to 896 kg/m3, and a melting point (“Tm”) of 15° C. to 60° C., wherein E and Tm fulfill the expression 3.44E?206?Tm; and (B) 0.05 to 1.5 percent by weight of a block copolymer comprising a first block which comprises a vinyl aromatic comonomer and a second block which comprises a diene comonomer, the diene monomer-containing block being hydrogenated; wherein the weight ratio (A):(B) is 20:80 to 60:40; exhibits good low temperature performance and durability.Type: ApplicationFiled: July 12, 2010Publication date: November 18, 2010Applicant: The Lubrizol CorporationInventors: Chor Huang, Lewis Breon -
Patent number: 7776804Abstract: A lubricant composition comprising an oil of lubricating viscosity; (A) 0.05 to 1.5 percent by weight of a copolymer comprising 70 to 79 percent by weight of units derived from ethylene (“E”), having a Mw of 50,000 to 100,000, Mw/ Mn less than 3, density (“D”) of 860 to 896 kg/m3, and a melting point (“Tm”) of 15° C. to 60° C., wherein E and Tm fulfill the expression 3.44E?206?Tm; and (B) 0.05 to 1.5 percent by weight of a block- copolymer comprising a first block which comprises a vinyl aromatic comonomer and a second block which comprises a diene comonomer, the diene monomer-containing block being hydrogenated; wherein the weight ratio (A):(B) is 20:80 to 60:40; exhibits good low temperature performance and durability.Type: GrantFiled: March 16, 2005Date of Patent: August 17, 2010Assignee: The Lubrizol CorporationInventors: Chor Huang, Lewis Breon
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Publication number: 20100152082Abstract: The invention provides a lubricating composition containing an oil of lubricating viscosity and a hydrogenated copolymer of an olefin block and vinyl aromatic block, wherein the copolymer is optionally functionalised. The invention further provides a method for preparing a hydrogenated copolymer; and the use of the lubricating composition.Type: ApplicationFiled: March 26, 2007Publication date: June 17, 2010Applicant: The Lubrizol CorporationInventors: David Price, William Barton, Chor Huang, Michael Sutton, Mark Davies, Rodney J. McAtee
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Patent number: 7402235Abstract: A mixture comprising A) a copolymer comprising from about 70 to about 79% by weight of units derived from ethylene, and having (a) Mw measured by gel permeation chromatography employing polystyrene standard ranging from about 50,000 up to less than 130,000 and/or (f) SSI?18; (b) density (D) ranging from about 845 to about 895 kg/m3; (c) Mw/ Mn less than 3; (d) melting point (Tm) measured by differential scanning calorimeter ranging from about 15° C. to about 60° C.; and (e) degree of crystallinity?15%, and B) an amorphous polymer having Mw ranging from about 130,000 to about 1,000,000 having degree of crystallinity?5%. In one embodiment the density and the melting point of the copolymer A) fulfill the expression Tm?1.247 D?1037. In another embodiment, the percentage content (E: % by weight) of repeating units derived from ethylene and melting point (Tm: ° C.) of the copolymer A) fulfill the expression 3.44E?206?Tm.Type: GrantFiled: July 30, 2001Date of Patent: July 22, 2008Assignee: The Lubrizol CorporationInventor: Chor Huang
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Publication number: 20060211586Abstract: A lubricant composition comprising an oil of lubricating viscosity; (A) 0.05 to 1.5 percent by weight of a copolymer comprising 70 to 79 percent by weight of units derived from ethylene (“E”), having a {overscore (M)}w of 50,000 to 100,000, {overscore (M)}w/{overscore (M)}n less than 3, density (“D”) of 860 to 896 kg/m3, and a melting point (“Tm”) of 15° C. to 60° C., wherein E and Tm fulfill the expression 3.44E?206?Tm; and (B) 0.05 to 1.5 percent by weight of a block- copolymer comprising a first block which comprises a vinyl aromatic comonomer and a second block which comprises a diene comonomer, the diene monomer-containing block being hydrogenated; wherein the weight ratio (A):(B) is 20:80 to 60:40; exhibits good low temperature performance and durability.Type: ApplicationFiled: March 16, 2005Publication date: September 21, 2006Applicant: The Lubrizol CorporationInventors: Chor Huang, Lewis Breon
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Publication number: 20040038850Abstract: A mixture comprising A) a copolymer comprising from about 70 to about 79% by weight of units derived from ethylene, and having (a) Mw measured by gel permeation chromatography employing polystyrene standard ranging from about 50,000 up to less than 130,000 and/or (f) SSI≦18; (b) density (D) ranging from about 845 to about 895 kg/m3; (c) Mw/mn less than 3; (d) melting point (Tm) measured by differential scanning calorimeter ranging from about 15° C. to about 60° C.; and (e) degree of crystallinity≧15%, and B) an amorphous polymer having Mw ranging from about 130,000 to about 1,000,000 having degree of crystallinity≦5%. In one embodiment the density and the melting point of the copolymer A) fulfill the expression Tm≦1.147 D−1037. In another embodiment, the percentage content (E: % by weight) of repeating units derived from ethylene and melting point (Tm: ° C.) of the copolymer A) fulfill the expression 3.44E−206≧Tm.Type: ApplicationFiled: January 8, 2003Publication date: February 26, 2004Inventor: Chor Huang
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Patent number: 4911736Abstract: Oil-in-water emulsions are stabilized against separation of the components by the addition of a novel interpolymer comprising (1) about 97 to about 99 percent by weight of a water soluble polymerizable monomer containing at least one acid group or salt thereof, and (2) about 1 to about 3 percent by weight of an ester of acrylic acid.Type: GrantFiled: March 17, 1989Date of Patent: March 27, 1990Assignee: The Standard Oil CompanyInventors: Chor Huang, Lawrence E. Ball
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Patent number: 4509949Abstract: Polymers of 98.9 to 95.5 weight percent of olefinically unsaturated carboxylic acids containing at least one activated double bond, 1 to about 3.5 weight percent of an alkyl acrylate ester of acrylic or methacrylic acid wherein the alkyl group contains 10 to 30 carbon atoms and 0.1 to less than 1 weight percent of a crosslinking monomer, are efficient thickeners in many applications where high ionic environments are encountered and may be used at lower concentrations to obtain equivalent or better results than prior art thickeners, and have been found to be particularly effective in print paste applications wherein there are reactive dyes, direct dyes and disperse dyes with high and varying ionic content. Further, in screen printing, improved print pastes are provided when they contain the novel polymers of this invention that have better rheology with less bounce back on release of printing pressure, and textile prints so made have better penetration.Type: GrantFiled: June 13, 1983Date of Patent: April 9, 1985Assignee: The B. F. Goodrich CompanyInventors: Chor Huang, Robert K. Schlatzer
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Patent number: 4280954Abstract: Composite materials are disclosed which are formed by contacting collagen with a mucopolysaccharide and subsequently covalently crosslinking the resultant polymer. These composite materials have a balance of mechanical, chemical and physiological properties which make them useful in surgical sutures and prostheses of controlled biodegradability (resorption) and controlled ability to prevent development of a foreign body reaction, and many are also useful in applications in which blood compatibility is required.Type: GrantFiled: April 16, 1979Date of Patent: July 28, 1981Assignee: Massachusetts Institute of TechnologyInventors: Ioannis V. Yannas, Philip L. Gordon, Chor Huang, Frederick H. Silver, John F. Burke
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Patent number: 4060081Abstract: A multilayer membrane, which is useful as synthetic skin, is disclosed herein. A first layer is formed from a material which does not provoke an immune response and which is also insoluble and nondegradable in the presence of body fluids and/or body enzymes. Preferred materials for the first layer are crosslinked composites of collagen and a mucopolysaccharide. A second layer is formed from a nontoxic material which controls the moisture flux of the overall membrane to about 0.1 to 1 mg./cm.sup.2 /hr. Suitable materials for the second layer include synthetic polymers such as silicone resins, polyacrylate or polymethacrylate esters or their copolymers, and polyurethanes.Type: GrantFiled: July 15, 1975Date of Patent: November 29, 1977Assignee: Massachusetts Institute of TechnologyInventors: Ioannis V. Yannas, John F. Burke, Philip L. Gordon, Chor Huang