Patents by Inventor Alexander A. Koukoulas
Alexander A. Koukoulas 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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Publication number: 20150152601Abstract: A method of producing a modified pulp comprising treating wood chips in an extraction process to remove hemicellose to form treated wood chips; and subjecting said treated wood chips to chemical or semichemical pulping to form a modified Kraft pulp wherein the amount of hemicellulose contained in the modified Kraft pulp is from about 5 to about 10% by dry weight of the modified pulp.Type: ApplicationFiled: February 9, 2015Publication date: June 4, 2015Inventors: ZHENG TAN, GOPAL GOYAL, ALEXANDER A. KOUKOULAS
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Publication number: 20150119838Abstract: A method of producing a modified pulp for use in paper or paper web products, the method comprising treating wood chips in an extraction process to remove hemicellose to form treated wood chips; and subjecting said treated wood chips to chemical or semichemical pulping to form a modified Kraft pulp wherein the amount of hemicellulose contained in the modified Kraft pulp is from about 5 to about 10% by dry weight of the modified pulp.Type: ApplicationFiled: January 6, 2015Publication date: April 30, 2015Inventors: ZHENG TAN, GOPAL GOYAL, ALEXANDER A. KOUKOULAS
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Publication number: 20130092336Abstract: A method of producing a modified pulp comprising treating wood chips in an extraction process to remove hemicellose to form treated wood chips; and subjecting said treated wood chips to chemical or semichemical pulping to form a modified Kraft pulp wherein the amount of hemicellulose contained in the modified Kraft pulp is from about 5 to about 10% by dry weight of the modified pulp.Type: ApplicationFiled: May 21, 2012Publication date: April 18, 2013Applicant: INTERNATIONAL PAPER COMPANYInventors: ZHENG TAN, GOPAL GOYAL, ALEXANDER A. KOUKOULAS
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Patent number: 8328983Abstract: A method of producing a modified pulp for use in paper or paper web products, the method comprising treating wood chips in an extraction process to remove hemicellose to form treated wood chips; and subjecting said treated wood chips to chemical or semichemical pulping to form a modified Kraft pulp wherein the amount of hemicellulose contained in the modified Kraft pulp is from about 5 to about 10% by dry weight of the modified pulp.Type: GrantFiled: May 24, 2006Date of Patent: December 11, 2012Assignee: International Paper CompanyInventors: Zheng Tan, Gopal Goyal, Alexander A Koukoulas
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Patent number: 8182650Abstract: A method of producing a modified pulp comprising treating wood chips in an extraction process to remove hemicellose to form treated wood chips; and subjecting said treated wood chips to chemical or semichemical pulping to form a modified Kraft pulp wherein the amount of hemicellulose contained in the modified Kraft pulp is from about 5 to about 10% by dry weight of the modified pulp.Type: GrantFiled: March 5, 2009Date of Patent: May 22, 2012Assignee: International Paper CompanyInventors: Zheng Tan, Gopal Goyal, Alexander A. Koukoulas
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Publication number: 20100252216Abstract: The invention provides a low density paperboard material and associated method for use in producing an insulated container, and is especially well-suited for making cups. The paperboard material comprises a paperboard web including wood fibers and expanded microspheres, and has a relatively low density ranging from about 6 to about 10 lb/3 MSF/mil (0.38 to about 0.64 g/cm3), a relatively high caliper ranging from about 24 to about 35 mil (609 to about 889 ?m), and an internal bond strength of at least about 80×10?3 ft-lbf (168×10?3 kj/m2), preferably at least 100×10?3 lft-lbf (210×10?3 kj/m2). For applications such as cups the material is also coated on one or both sides with a barrier coating, preferably low density polyethylene, to limit liquid penetration into the web. The low density paperboard material of the invention is convertible for manufacture of containers, particularly cups, and exhibits insulative properties comparable to higher cost materials conventionally used to make cups.Type: ApplicationFiled: June 22, 2010Publication date: October 7, 2010Applicant: Intemational Paper CompanyInventors: Kosaraju Krishna Mohan, Alexander A. Koukoulas, Peter Matthew Froass, David Verd Reed
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Patent number: 7740740Abstract: The invention provides a low density paperboard material and associated method for use in producing an insulated container, and is especially well-suited for making cups. The paperboard material comprises a paperboard web including wood fibers and expanded microspheres, and has a relatively low density ranging from about 6 to about 10 lb/3 MSF/mil, a relatively high caliper ranging from about 24 to about 35 mil, and an internal bond strength of at least about 80×10?3 ft-lbf., preferably at least 100×10?3 lft-lbf. For applications such as cups the material is also coated on one or both sides with a barrier coating, preferably low density polyethylene, to limit liquid penetration into the web. The low density paperboard material of the invention is convertible for manufacture of containers, particularly cups, and exhibits insulative properties comparable to higher cost materials conventionally used to make cups.Type: GrantFiled: September 27, 2007Date of Patent: June 22, 2010Assignee: International Paper CompanyInventors: Kosaraju Krishna Mohan, Alexander A Koukoulas, Peter Matthew Froass, David Verd Reed
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Patent number: 7682486Abstract: The invention provides a low density paperboard material and associated method for use in producing an insulated container, and is especially well-suited for making cups. The paperboard material comprises a paperboard web including wood fibers and expanded microspheres, and has a relatively low density ranging from about 6 to about 10 lb/3MSF/mil, a relatively high caliper ranging from about 24 to about 35 mil, and an internal bond strength of at least about 80×10?3 ft-lbf., preferably at least 100×10?3 lft-lbf. For applications such as cups the material is also coated on one or both sides with a barrier coating, preferably low density polyethylene, to limit liquid penetration into the web. The low density paperboard material of the invention is convertible for manufacture of containers, particularly cups, and exhibits insulative properties comparable to higher cost materials conventionally used to make cups.Type: GrantFiled: September 27, 2007Date of Patent: March 23, 2010Assignee: International Paper CompanyInventors: Kosaraju Krishna Mohan, Alexander A Koukoulas, Peter Matthew Froass, David Verd Reed
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Publication number: 20090165968Abstract: A method of producing a modified pulp comprising treating wood chips in an extraction process to remove hemicellose to form treated wood chips; and subjecting said treated wood chips to chemical or semichemical pulping to form a modified Kraft pulp wherein the amount of hemicellulose contained in the modified Kraft pulp is from about 5 to about 10% by dry weight of the modified pulp.Type: ApplicationFiled: March 5, 2009Publication date: July 2, 2009Applicant: International Paper CompanyInventors: ZHENG TAN, GOPAL GOYAL, ALEXANDER A. KOUKOULAS
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Patent number: 7520958Abstract: A method of producing a modified pulp comprising treating wood chips in an extraction process to remove hemicellose to form treated wood chips; and subjecting said treated wood chips to chemical or semichemical pulping to form a modified Kraft pulp wherein the amount of hemicellulose contained in the modified Kraft pulp is from about 5 to about 10% by dry weight of the modified pulp.Type: GrantFiled: October 18, 2006Date of Patent: April 21, 2009Assignee: International Paper CompanyInventors: Zheng Tan, Gopal Goyal, Alexander A. Koukoulas
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Publication number: 20080171186Abstract: The invention provides a low density paperboard material and associated method for use in producing an insulated container, and is especially well-suited for making cups. The paperboard material comprises a paperboard web including wood fibers and expanded microspheres, and has a relatively low density ranging from about 6 to about 10 lb/3MSF/mil, a relatively high caliper ranging from about 24 to about 35 mil, and an internal bond strength of at least about 80×10?3 ft-lbf., preferably at least 100×10?3 lft-lbf. For applications such as cups the material is also coated on one or both sides with a barrier coating, preferably low density polyethylene, to limit liquid penetration into the web. The low density paperboard material of the invention is convertible for manufacture of containers, particularly cups, and exhibits insulative properties comparable to higher cost materials conventionally used to make cups.Type: ApplicationFiled: September 27, 2007Publication date: July 17, 2008Inventors: Kosaraju Krishna Mohan, Alexander A. Koukoulas, Peter Matthew Froass, David Verd Reed
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Publication number: 20080163992Abstract: The invention provides a low density paperboard material and associated method for use in producing an insulated container, and is especially well-suited for making cups. The paperboard material comprises a paperboard web including wood fibers and expanded microspheres, and has a relatively low density ranging from about 6 to about 10 lb/3 MSF/mil, a relatively high caliper ranging from about 24 to about 35 mil, and an internal bond strength of at least about 80×10?3 ft-lbf., preferably at least 100×10?3 lft-lbf. For applications such as cups the material is also coated on one or both sides with a barrier coating, preferably low density polyethylene, to limit liquid penetration into the web. The low density paperboard material of the invention is convertible for manufacture of containers, particularly cups, and exhibits insulative properties comparable to higher cost materials conventionally used to make cups.Type: ApplicationFiled: September 27, 2007Publication date: July 10, 2008Inventors: Kosaraju Krishna Mohan, Alexander A. Koukoulas, Peter Matthew Froass, David Verd Reed
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Patent number: 7335279Abstract: The invention provides a low density paperboard material and associated method for use in producing an insulated container, and is especially well-suited for making cups. The paperboard material comprises a paperboard web including wood fibers and expanded microspheres, and has a relatively low density ranging from about 6 to about 10 lb/3MSF/mil, a relatively high caliper ranging from about 24 to about 35 mil, and an internal bond strength of at least about 80×10?3 ft-lbf., preferably at least 100×10?3 lft-lbf. For applications such as cups the material is also coated on one or both sides with a barrier coating, preferably low density polyethylene, to limit liquid penetration into the web. The low density paperboard material of the invention is convertible for manufacture of containers, particularly cups, and exhibits insulative properties comparable to higher cost materials conventionally used to make cups.Type: GrantFiled: September 19, 2003Date of Patent: February 26, 2008Assignee: International Paper CompanyInventors: Kosaraju Krishna Mohan, Alexander A. Koukoulas, Peter Matthew Froass, David Verd Reed
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Publication number: 20070051481Abstract: A method of producing a modified pulp comprising treating wood chips in an extraction process to remove hemicellose to form treated wood chips; and subjecting said treated wood chips to chemical or semichemical pulping to form a modified Kraft pulp wherein the amount of hemicellulose contained in the modified Kraft pulp is from about 5 to about 10% by dry weight of the modified pulp.Type: ApplicationFiled: October 18, 2006Publication date: March 8, 2007Inventors: Zheng Tan, Gopal Goyal, Alexander Koukoulas
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Publication number: 20070000627Abstract: A method of producing a modified pulp for use in paper or paper web products, the method comprising treating wood chips in an extraction process to remove hemicellose to form treated wood chips; and subjecting said treated wood chips to chemical or semichemical pulping to form a modified Kraft pulp wherein the amount of hemicellulose contained in the modified Kraft pulp is from about 5 to about 10% by dry weight of the modified pulp.Type: ApplicationFiled: May 24, 2006Publication date: January 4, 2007Inventors: Zheng Tan, Gopal Goyal, Alexander Koukoulas
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Publication number: 20050133183Abstract: The invention provides a low density paperboard material and associated method for use in producing an insulated container, and is especially well-suited for making cups. The paperboard material comprises a paperboard web including wood fibers and expanded microspheres, and has a relatively low density ranging from about 6 to about 10 lb/3MSF/mil, a relatively high caliper ranging from about 24 to about 35 mil, and an internal bond strength of at least about 80×10?3 ft?lbf., preferably at least 100×10?3 lft?lbf. For applications such as cups the material is also coated on one or both sides with a barrier coating, preferably low density polyethylene, to limit liquid penetration into the web. The low density paperboard material of the invention is convertible for manufacture of containers, particularly cups, and exhibits insulative properties comparable to higher cost materials conventionally used to make cups.Type: ApplicationFiled: October 5, 2004Publication date: June 23, 2005Inventors: Kosaraju Mohan, Alexander Koukoulas, Peter Froass, David Reed
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Patent number: 6846529Abstract: The invention provides a low density paperboard material for use in producing an insulated container, and is especially well-suited for making cups. The paperboard material comprises a paperboard web including wood fibers and expanded microspheres, and has a relatively low density ranging from about 6 to about 10 lb/3MSF/mil, a relatively high caliper ranging from about 24 to about 35 mil, and an internal bond strength of at least about 80×10?3 ft-lbf preferably at least 100×10?3 ft-lbf. For applications such as cups the material is also coated on one or both sides with a barrier coating, preferably low density polyethylene, to limit liquid penetration into the web. The low density paperboard material of the invention is convertible for manufacture of containers, particularly cups, and the surface of the low density board may have a Sheffield smoothness of 300 SU or greater.Type: GrantFiled: September 19, 2003Date of Patent: January 25, 2005Assignee: International Paper CompanyInventors: Kosaraju Krishna Mohan, Alexander A. Koukoulas, Peter Matthew Froass, David Verd Reed
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Patent number: 6802938Abstract: The invention provides a low density paperboard material and associated method for use in producing an insulated container, and is especially well-suited for making cups. The paperboard material comprises a paperboard web including wood fibers and expanded microspheres, and has a relatively low density ranging from about 6 to about 10 lb/3MSF/mil, a relatively high caliper ranging from about 24 to about 35 mil, and an internal bond strength of at least about 80×10−3 ft-lbf., preferably at least 100×10−3 lft-lbf. For applications such as cups the material is also coated on one or both sides with a barrier coating, preferably low density polyethylene, to limit liquid penetration into the web. The low density paperboard material of the invention is convertible for manufacture of containers, particularly cups, and exhibits insulative properties comparable to higher cost materials conventionally used to make cups.Type: GrantFiled: January 26, 2001Date of Patent: October 12, 2004Assignee: International Paper CompanyInventors: Kosaraju Krishna Mohan, Alexander A. Koukoulas
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Publication number: 20040065424Abstract: The invention provides a low density paperboard material and associated method for use in producing an insulated container, and is especially well-suited for making cups. The paperboard material comprises a paperboard web including wood fibers and expanded microspheres, and has a relatively low density ranging from about 6 to about 10 lb/3MSF/mil, a relatively high caliper ranging from about 24 to about 35 mil, and an internal bond strength of at least about 80×10−3 ft-lbf., preferably at least 100×10−3 lft-lbf. For applications such as cups the material is also coated on one or both sides with a barrier coating, preferably low density polyethylene, to limit liquid penetration into the web. The low density paperboard material of the invention is convertible for manufacture of containers, particularly cups, and exhibits insulative properties comparable to higher cost materials conventionally used to make cups.Type: ApplicationFiled: September 19, 2003Publication date: April 8, 2004Inventors: Kosaraju Krishna Mohan, Alexander A. Koukoulas, Peter Matthew Froass, David Verd Reed
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Publication number: 20040052989Abstract: The invention provides a low density paperboard material and associated method for use in producing an insulated container, and is especially well-suited for making cups. The paperboard material comprises a paperboard web including wood fibers and expanded microspheres, and has a relatively low density ranging from about 6 to about 10 lb/3MSF/mil, a relatively high caliper ranging from about 24 to about 35 mil, and an internal bond strength of at least about 80×10−3 ft-lbf., preferably at least 100×10−3 lft-lbf. For applications such as cups the material is also coated on one or both sides with a barrier coating, preferably low density polyethylene, to limit liquid penetration into the web. The low density paperboard material of the invention is convertible for manufacture of containers, particularly cups, and exhibits insulative properties comparable to higher cost materials conventionally used to make cups.Type: ApplicationFiled: September 19, 2003Publication date: March 18, 2004Inventors: Kosaraju Krishna Mohan, Alexander A. Koukoulas, Peter Matthew Froass, David Verd Reed