Patents by Inventor Vikramkumar Acharya

Vikramkumar Acharya 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).

  • Hot melt adhesive compositions containing an aliphatic hydrocarbon resin
    Patent number: 4359552
    Abstract: Hot melt adhesive compositions are provided which contain (a) about 10-30 weight % of an alkenyl succinic anhydride, (b) about 20-60 weight % of an ethylene copolymer, and (c) about 10-40 weight % of a tackifying resin which is an aliphatic hydrocarbon resin.
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: November 16, 1982
    Assignee: Gulf Oil Corporation
    Inventors: Vikramkumar Acharya, Pallavoor R. Lakshmanan
  • Hot melt adhesive compositions containing an alpha-methylstyrene/vinyl toluene copolymer
    Patent number: 4340687
    Abstract: Hot melt adhesive compositions are provided which contain (a) about 10-30 weight % of an alkenyl succinic anhydride, (b) about 20-60 weight % of an ethylene copolymer, and (c) about 10-40 weight % of a tackifying resin which is an alpha-methylstyrene/vinyl toluene copolymer.
    Type: Grant
    Filed: January 28, 1981
    Date of Patent: July 20, 1982
    Assignee: Gulf Oil Corporation
    Inventors: Vikramkumar Acharya, Pallavoor R. Lakshmanan
  • Hot melt adhesive compositions containing a polystyrene resin
    Patent number: 4338414
    Abstract: Hot melt adhesive compositions are provided which contain (a) about 10-30 weight % of an alkenyl succinic anhydride, (b) about 20-60 weight % of an ethylene copolymer, and (c) about 10-40 weight % of a tackifying resin which is a polystyrene resin.
    Type: Grant
    Filed: January 28, 1981
    Date of Patent: July 6, 1982
    Assignee: Gulf Oil Corporation
    Inventors: Vikramkumar Acharya, Pallavoor R. Lakshmanan
  • Hot melt adhesive compositions containing terpene resins
    Patent number: 4338416
    Abstract: Hot melt adhesive compositions are provided which contain (a) about 10-30 weight % of an alkenyl succinic anhydride, (b) about 20-60 weight % of an ethylene copolymer, and (c) about 10-40 weight % of a tackifying resin which is a terpene resin.
    Type: Grant
    Filed: January 28, 1981
    Date of Patent: July 6, 1982
    Assignee: Gulf Oil Corporation
    Inventors: Vikramkumar Acharya, Pallavoor R. Lakshmanan
  • Hot melt adhesive compositions containing an aromatic hydrocarbon resin
    Patent number: 4338415
    Abstract: Hot melt adhesive compositions are provided which contain (a) about 10-30 weight % of an alkenyl succinic anhydride, (b) about 20-60 weight % of an ethylene copolymer, and (c) about 10-40 weight % of a tackifying resin which is an aromatic hydrocarbon resin.
    Type: Grant
    Filed: January 28, 1981
    Date of Patent: July 6, 1982
    Assignee: Gulf Oil Corporation
    Inventors: Vikramkumar Acharya, Pallavoor R. Lakshmanan
  • Hot melt adhesive compositions containing rosin esters
    Patent number: 4325853
    Abstract: Hot melt adhesive compositions are provided which contain (a) about 10-30 weight % of an alkenyl succinic anhydride, (b) about 20-60 weight % of an ethylene copolymer, and (c) about 10-40 weight % of a tackifying resin which is a rosin ester.
    Type: Grant
    Filed: January 29, 1981
    Date of Patent: April 20, 1982
    Assignee: Gulf Oil Corporation
    Inventors: Vikramkumar Acharya, Pallavoor R. Lakshmanan
  • Hot melt adhesive compositions containing a terpene-phenolic resin, ethylene copolymer and alkenyl succinic anhydride
    Patent number: 4324871
    Abstract: Hot melt adhesive compositions are provided which contain (a) about 10-30 weight % of an alkenyl succinic anhydride, (b) abut 20-60 weight % of an ethylene copolymer, and (c) about 10-40 weight % of a tackifying resin which is a terpene-phenolic resin.
    Type: Grant
    Filed: January 28, 1981
    Date of Patent: April 13, 1982
    Assignee: Gulf Oil Corporation
    Inventors: Vikramkumar Acharya, Pallavoor R. Lakshmanan
  • Hot melt adhesive compositions containing a terpene-urethane resin, ethylene copolymer and alkenyl succinic anhydride
    Patent number: 4320211
    Abstract: Hot melt adhesive compositions are provided which contain (a) about 10-30 weight % of an alkenyl succinic anhydride, (b) about 20-60 weight % of an ethylene copolymer, and (c) about 10-40 weight % of a tackifying resin which is a terpene-urethane resin.
    Type: Grant
    Filed: January 28, 1981
    Date of Patent: March 16, 1982
    Assignee: Gulf Oil Corporation
    Inventors: Vikramkumar Acharya, Pallavoor R. Lakshmanan