Patents by Inventor Subhash H. Patel

Subhash H. Patel 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: 20080032145
    Abstract: A method for making a polymeric part having an anti-graffiti property is disclosed. The method includes formulating a first mixture of a polymer and a hydrocarbon mixture, forming a substantially planar sheet of the first mixture, formulating a second mixture of a mineral oil and a wax, coating a surface of a forming mold with the second mixture of a mineral oil and a wax, and thermoforming the substantially planar sheet to form the polymeric part using the forming mold coated with the second mixture of mineral oil and wax.
    Type: Application
    Filed: February 18, 2005
    Publication date: February 7, 2008
    Inventors: Subir K. Dey, Subhash H. Patel
  • Patent number: 6849339
    Abstract: Laminates include a thermoplastic substrate layer, a clear coat layer, and a tie layer. The tie layer most preferably includes an adhesive-enhancing effective amount of a branched or linear styrenic block copolymer which adhesively bonds the substrate and clear coat layers one to another. Advantageously, the tie layer includes a blend of the styrenic block copolymer and a tackifier resin, preferably a terpene resin. The laminate may be employed to manufacture a variety of shaped articles, most preferably automotive trim components.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: February 1, 2005
    Assignee: Guardian Industries Corporation
    Inventors: Subir K. Dey, Subhash H. Patel
  • Patent number: 6805927
    Abstract: Laminates include a thermoplastic substrate layer, a clear coat layer, and a tie layer between the substrate and clear coat layers. The tie layer most preferably includes a first layer adjacent the thermoplastic substrate layer which is comprised of a polyolefin, and a second layer adjacent to the clear coat layer which is comprised of a polyamide. Most preferably, the substrate layer is TPO and the clear coat layer is PVF. The laminates may be employed to manufacture a variety of shaped articles, most preferably automotive trim components.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: October 19, 2004
    Assignee: Guardian Industries Corporation
    Inventors: Subir K. Dey, Subhash H. Patel, Marino Xanthos
  • Patent number: 6805959
    Abstract: Laminates include a thermoplastic substrate layer, a clear coat layer, and a tie layer. The tie layer most preferably includes an adhesive-enhancing effective amount of a maleic anhydride grafted styrenic block copolymer which adhesively bonds the substrate and clear coat layers one to another. Advantageously, the tie layer includes a blend of the styrenic block copolymer and a diamine, especially 2-methylpentamethylenediamine. The laminate may be employed to manufacture a variety of shaped articles, most preferably automotive trim components.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: October 19, 2004
    Assignee: Guardian Industries Corporation
    Inventors: Subir K. Dey, Subhash H. Patel, Marino Xanthos
  • Patent number: 6696117
    Abstract: Laminates include a thermoplastic substrate layer, a clear coat layer, and a tie layer. The tie layer most preferably includes an adhesive-enhancing effective amount of a thermoplastic reactive terpolymer of ethylene-methyl acrylate-glycidyl methacrylate (E-MA-GMA) which adhesively bonds the substrate and clear coat layers one to another. Most preferably, the tie layer is a blend of E-MA-GMA and a tackifier (e.g., a C6-C8 cycloaliphatic hydrocarbon resin). The laminate may be employed to manufacture a variety of shaped articles, most preferably automotive trim components.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: February 24, 2004
    Assignee: Guardian Industries, Inc.
    Inventors: Subir K. Dey, Subhash H. Patel, Marino Xanthos
  • Publication number: 20040033365
    Abstract: Laminates include a thermoplastic substrate layer, a clear coat layer, and a tie layer between the substrate and clear coat layers. The tie layer most preferably includes a first layer adjacent the thermoplastic substrate layer which is comprised of a polyolefin, and a second layer adjacent to the clear coat layer which is comprised of a polyamide. Most preferably, the substrate layer is TPO and the clear coat layer is PVF. The laminates may be employed to manufacture a variety of shaped articles, most preferably automotive trim components.
    Type: Application
    Filed: August 16, 2002
    Publication date: February 19, 2004
    Inventors: Subir K. Dey, Subhash H. Patel, Marino Xanthos
  • Publication number: 20030099789
    Abstract: Laminates include a thermoplastic substrate layer, a clear coat layer, and a tie layer. The tie layer most preferably includes an adhesive-enhancing effective amount of a branched or linear styrenic block copolymer which adhesively bonds the substrate and clear coat layers one to another. Advantageously, the tie layer includes a blend of the styrenic block copolymer and a tackifier resin, preferably a terpene resin. The laminate may be employed to manufacture a variety of shaped articles, most preferably automotive trim components.
    Type: Application
    Filed: November 27, 2001
    Publication date: May 29, 2003
    Inventors: Subir K. Dey, Subhash H. Patel
  • Publication number: 20030099840
    Abstract: Laminates include a thermoplastic substrate layer, a clear coat layer, and a tie layer. The tie layer most preferably includes an adhesive-enhancing effective amount of a thermoplastic reactive terpolymer of ethylene-methyl acrylate-glycidyl methacrylate (E-MA-GMA) which adhesively bonds the substrate and clear coat layers one to another. Most preferably, the tie layer is a blend of E-MA-GMA and a tackifier (e.g., a C6-C8 cycloaliphatic hydrocarbon resin). The laminate may be employed to manufacture a variety of shaped articles, most preferably automotive trim components.
    Type: Application
    Filed: November 27, 2001
    Publication date: May 29, 2003
    Inventors: Subir K. Dey, Subhash H. Patel, Marino Xanthos
  • Publication number: 20030099790
    Abstract: Laminates include a thermoplastic substrate layer, a clear coat layer, and a tie layer. The tie layer most preferably includes an adhesive-enhancing effective amount of a maleic anhydride grafted styrenic block copolymer which adhesively bonds the substrate and clear coat layers one to another. Advantageously, the tie layer includes a blend of the styrenic block copolymer and a diamine, especially 2-methylpentamethylenediamine. The laminate may be employed to manufacture a variety of shaped articles, most preferably automotive trim components.
    Type: Application
    Filed: November 27, 2001
    Publication date: May 29, 2003
    Inventors: Subir K. Dey, Subhash H. Patel, Marino Xanthos
  • Patent number: 5672465
    Abstract: Described is a radiation sensitive imaging film containing a heat fixable radiation sensitive element, e.g., a diacetylene, of the formula: R--C.tbd.C--C.tbd.C--R', where R and R' are, e.g., both --CH.sub.2 --O--CONH--(CH.sub.2).sub.5 CH.sub.3. After exposure to X-radiation during diagnostic or X-ray therapy, the resulting image can be permanently dry fixed by a short heating step and then stored for a long period. Processes for making the film, new binder-convertor systems, and a device incorporating the film are described as well as other imaging, diagnostic and therapeutic methods utilizing the film in high energy radiation applications in the health care field.
    Type: Grant
    Filed: January 9, 1995
    Date of Patent: September 30, 1997
    Assignee: JP Laboratories, Inc.
    Inventors: Gordhanbhai N. Patel, Yao-Ming Cheng, Subhash H. Patel
  • Patent number: 5591354
    Abstract: There is disclosed a process of etching the surface of polymeric materials made of polymers having at least one oxidatively degradable functionality which comprises treating said surface with a solution of at least one member of the etchant group consisting of nitronium, nitrosonium ions and complexes thereof, in a solvent containing less than 40% by weight of water and nitroacidium ions and complexes thereof. The process further comprises use of cosolvents and swellants. It also includes pre and post etching steps directed to the preparation of the surface for etching and removal of the etchant respectively.
    Type: Grant
    Filed: October 21, 1994
    Date of Patent: January 7, 1997
    Assignee: JP Laboratories, Inc.
    Inventors: Gordhanbhai N. Patel, Subhash H. Patel
  • Patent number: 5420000
    Abstract: Described is a radiation sensitive imaging film containing a heat fixable radiation sensitive element, e.g., a diacetylene, of the formula: R--C.tbd.C--C.tbd.C--R', where R and R' are, e.g., both --CH.sub.2 --O--CONH--(CH.sub.2).sub.5 CH.sub.3. After exposure to X-radiation during diagnostic or X-ray therapy, the resulting image can be permanently dry fixed by a short heating step and then stored for a long period. Processes for making the film, new binder-convertor systems, and a device incorporating the film are described as well as other imaging, diagnostic and therapeutic methods utilizing the film in high energy radiation applications in the health care field.
    Type: Grant
    Filed: August 12, 1993
    Date of Patent: May 30, 1995
    Assignee: JP Laboratories, Inc.
    Inventors: Gordhanbhai N. Patel, Yao-Ming Cheng, Subhash H. Patel