Patents by Inventor Jiangdong Tong
Jiangdong Tong 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: 20220145617Abstract: Described herein is a corrugated intumescent composite structure comprising at least one metal mesh layer secured on or in an intumescent material, wherein the composite structure comprises a plurality of alternating flanges and ribs. In one embodiment, the corrugated intumescent composite structure disposed onto a metal decking for fire protection.Type: ApplicationFiled: March 23, 2020Publication date: May 12, 2022Inventors: Jiangdong Tong, Utsav Dogra, Elise Lariviere, Victor K. Oreskovich, Nicholas Vreugdenhil
-
Patent number: 10683457Abstract: A free-standing solid composite intumescent structure has at least one bendable metal mesh, preferably at least two, secured on or in a bendable intumescent sheet material. The structure is bendable by a bending force into a shape at a temperature above ?10° C. while retaining the bended shape when the bending force is removed. The intumescent sheet material has 10 wt % or more, based on total weight of the sheet material, of a polymeric resin; inorganic filler; and, an intumescent component. Fire protection barriers can be made from the free-standing solid composite intumescent structure, which can be used in fire protection systems where the fire protection barrier is installed on a substrate, for example steel building elements.Type: GrantFiled: October 31, 2014Date of Patent: June 16, 2020Assignee: 3M Innovative Properties CompanyInventors: Jiangdong Tong, Hui Zhu, David E Livingstone
-
Patent number: 10138421Abstract: A solid intumescent material is made of a of about 30 wt % or less, based on total weight of the intumescent material, of a hot melt thermoplastic or elastomeric resin (e.g. an EVA resin), a reinforcing material (e.g. glass fibers having an aspect ratio of at least about 100), inorganic filler and an intumescent component (e.g. ammonium polyphosphate, pentaerythritol and melamine). The intumescent material may be formed into fire protection barriers of various thicknesses and may be shaped at a temperature well below the activation temperature of the intumescent material to permit conforming the barrier to requirements at a job site.Type: GrantFiled: October 31, 2014Date of Patent: November 27, 2018Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Jiangdong Tong, Hui Zhu
-
Publication number: 20160272893Abstract: A solid intumescent material is made of a of about 30 wt % or less, based on total weight of the intumescent material, of a hot melt thermoplastic or elastomeric resin (e.g. an EVA resin), a reinforcing material (e.g. glass fibers having an aspect ratio of at least about 100), inorganic filler and an intumescent component (e.g. ammonium polyphosphate, pentaerythritol and melamine). The intumescent material may be formed into fire protection barriers of various thicknesses and may be shaped at a temperature well below the activation temperature of the intumescent material to permit conforming the barrier to requirements at a job site.Type: ApplicationFiled: October 31, 2014Publication date: September 22, 2016Inventors: Jiangdong Tong, Hui Zhu
-
Publication number: 20160272891Abstract: A free-standing solid composite intumescent structure has at least one bendable metal mesh, preferably at least two, secured on or in a bendable intumescent sheet material. The structure is bendable by a bending force into a shape at a temperature above ?10° C. while retaining the bended shape when the bending force is removed. The intumescent sheet material has 10 wt % or more, based on total weight of the sheet material, of a polymeric resin; inorganic filler; and, an intumescent component. Fire protection barriers can be made from the free-standing solid composite intumescent structure, which can be used in fire protection systems where the fire protection barrier is installed on a substrate, for example steel building elements.Type: ApplicationFiled: October 31, 2014Publication date: September 22, 2016Inventors: Jiangdong Tong, Hui Zhu, David E Livingstone
-
Patent number: 8444790Abstract: An intumescent fire protection barrier in the form of an adhesive sheet or continuous roll of tape. The barrier comprises laminated layers of an intumescent material, a reinforcing matrix, a pressure sensitive adhesive and a release liner. The intumescent material is adhesively applied to a structural steel substrate and expands by at least 10 times its original thickness during a fire to provide fire protection to the substrate. Multiple layers of the fire protection barrier may be installed on top of one another. This application method dramatically reduces installation time as compared with sprayed on fire protection coatings.Type: GrantFiled: December 9, 2011Date of Patent: May 21, 2013Assignee: 3M Innovative Properties CompanyInventor: Jiangdong Tong
-
Publication number: 20120080144Abstract: An intumescent fire protection barrier in the form of an adhesive sheet or continuous roll of tape. The barrier comprises laminated layers of an intumescent material, a reinforcing matrix, a pressure sensitive adhesive and a release liner. The intumescent material is adhesively applied to a structural steel substrate and expands by at least 10 times its original thickness during a fire to provide fire protection to the substrate. Multiple layers of the fire protection barrier may be installed on top of one another. This application method dramatically reduces installation time as compared with sprayed on fire protection coatings.Type: ApplicationFiled: December 9, 2011Publication date: April 5, 2012Inventor: Jiangdong Tong
-
Publication number: 20090255619Abstract: An intumescent fire protection barrier in the form of an adhesive sheet or continuous roll of tape. The barrier comprises laminated layers of an intumescent material, a reinforcing matrix, a pressure sensitive adhesive and a release liner. The intumescent material is adhesively applied to a structural steel substrate and expands by at least 10 times its original thickness during a fire to provide fire protection to the substrate. Multiple layers of the fire protection barrier may be installed on top of one another. This application method dramatically reduces installation time as compared with sprayed on fire protection coatings.Type: ApplicationFiled: February 5, 2009Publication date: October 15, 2009Inventor: Jiangdong Tong
-
Publication number: 20080097043Abstract: A method comprises providing a liner to at least a portion of at least one surface, the liner comprising the product of reaction of (a) at least one polymer selected from the group consisting of polyurethanes, polyureas, polythiocarbamates, and combinations thereof; and (b) at least one polymerizable reactive diluent; wherein the surface comprises at least one inorganic mineral other than a metal or a glass, with the proviso that the surface is a surface other than a trafficable surface.Type: ApplicationFiled: September 19, 2005Publication date: April 24, 2008Inventor: Jiangdong Tong
-
Publication number: 20080015310Abstract: A method comprises providing a liner to at least a portion of at least one surface, the liner comprising the product of reaction of (a) at least one prepolymer bearing isocyanate groups; (b) at least one polymer bearing isocyanate-reactive groups; and (c) at least one polymerizable reactive diluent; wherein the surface comprises at least one inorganic mineral other than a metal or a glass, with the proviso that the surface is a surface other than a trafficable surface.Type: ApplicationFiled: September 19, 2005Publication date: January 17, 2008Inventor: Jiangdong Tong
-
Patent number: 7290960Abstract: A liner is the product of reaction of (a) a hydrophilic prepolymer bearing isocyanate groups; and (b) a water-borne polymer dispersion, the polymer bearing groups that are reactive to isocyanate groups; wherein the dispersion has a sufficiently high solids content, and the polymer has a sufficiently high modulus and glass transition or crystalline melting temperature, that the product of reaction exhibits a 24-hour Tensile Strength of at least about 2.5 MPa.Type: GrantFiled: December 23, 2005Date of Patent: November 6, 2007Assignee: 3M Innovative Properties CompanyInventors: Ashok Sengupta, Jiangdong Tong
-
Publication number: 20060099034Abstract: A liner is the product of reaction of (a) a hydrophilic prepolymer bearing isocyanate groups; and (b) a water-borne polymer dispersion, the polymer bearing groups that are reactive to isocyanate groups; wherein the dispersion has a sufficiently high solids content, and the polymer has a sufficiently high modulus and glass transition or crystalline melting temperature, that the product of reaction exhibits a 24-hour Tensile Strength of at least about 2.5 MPa.Type: ApplicationFiled: December 23, 2005Publication date: May 11, 2006Inventors: Ashok Sengupta, Jiangdong Tong
-
Patent number: 7011865Abstract: A liner is the product of reaction of (a) a hydrophilic prepolymer bearing isocyanate groups; and (b) a water-borne polymer dispersion, the polymer bearing groups that are reactive to isocyanate groups; wherein the dispersion has a sufficiently high solids content, and the polymer has a sufficiently high modulus and glass transition or crystalline melting temperature, that the product of reaction exhibits a 24-hour Tensile Strength of at least about 2.5 MPa.Type: GrantFiled: September 6, 2002Date of Patent: March 14, 2006Assignee: 3M Innovative Properties CompanyInventors: Ashok Sengupta, Jiangdong Tong
-
Patent number: 6664414Abstract: The invention provides a process for reducing the amount of monomeric polyisocyanate in a composition comprising a polymer or oligomer bearing isocyanate groups, the method comprising reacting the composition with a quenching agent, the quenching agent comprising an arylalkyl alcohol and an alkoxysilane bearing a secondary amino group.Type: GrantFiled: September 11, 2001Date of Patent: December 16, 2003Assignee: 3M Innovative Properties CompanyInventors: Jiangdong Tong, Ashok Sengupta
-
Publication number: 20030125472Abstract: A liner is the product of reaction of (a) a hydrophilic prepolymer bearing isocyanate groups; and (b) a water-borne polymer dispersion, the polymer bearing groups that are reactive to isocyanate groups; wherein the dispersion has a sufficiently high solids content, and the polymer has a sufficiently high modulus and glass transition or crystalline melting temperature, that the product of reaction exhibits a 24-hour Tensile Strength of at least about 2.5 MPa.Type: ApplicationFiled: September 6, 2002Publication date: July 3, 2003Applicant: 3M Innovative Properties CompanyInventors: Ashok Sengupta, Jiangdong Tong
-
Publication number: 20030092932Abstract: The invention provides a process for reducing the amount of monomeric polyisocyanate in a composition comprising a polymer or oligomer bearing isocyanate groups, the method comprising reacting the composition with a quenching agent, the quenching agent comprising an arylalkyl alcohol and an alkoxysilane bearing a secondary amino group.Type: ApplicationFiled: September 11, 2001Publication date: May 15, 2003Inventors: Jiangdong Tong, Ashok Sengupta
-
Publication number: 20030092848Abstract: The invention provides a liner which is the product of reaction of a (a) hydrophilic prepolymer bearing isocyanate groups; and (b) a water-borne polyurethane dispersion, the polyurethane bearing groups that are reactive to isocyanate groups.Type: ApplicationFiled: September 11, 2001Publication date: May 15, 2003Inventors: Ashok Sengupta, Jiangdong Tong