Patents by Inventor Alexandros Hasson

Alexandros Hasson 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).

  • Compositions which contain polyphenylene ether and polyamide resin
    Patent number: 5859130
    Abstract: Improved thermoplastic compositions based on compatibilized blends of polyphenylene ether and polyamide are disclosed. These compositions contain radial block copolymers (such as those based on styrene/butadiene) having at least three polymer chains which often terminate with non-elastomeric segments.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: January 12, 1999
    Assignee: General Electric Co.
    Inventors: Jay K. Gianchandai, deceased, Alexandros Hasson, Ronald J. Wroczynski, John B. Yates, III
  • Polyphenylene ether alloys
    Patent number: 5521244
    Abstract: The present invention relates to a readily molded engineering plastic composition comprising:polyphenylene ether polymer; optionallya second polymer chosen from polyesters, polyamides and polycarbonates; andabout 0.05 to about 5 weight percent hydrogenated poly (alpha-olefin) fluid.
    Type: Grant
    Filed: December 30, 1994
    Date of Patent: May 28, 1996
    Assignee: General Electric Company
    Inventors: John B. Yates, Alexandros Hasson
  • Polyphenylene ether alloys
    Patent number: 5399610
    Abstract: The present invention relates to a readily molded engineering plastic composition comprising:polyphenylene ether polymer; optionallya second polymer chosen from polyesters, polyamides and polycarbonates; andabout 0.05 to about 5 weight percent hydrogenated poly (alpha-olefin) fluid.
    Type: Grant
    Filed: March 18, 1993
    Date of Patent: March 21, 1995
    Assignee: General Electric Company
    Inventors: John B. Yates, Alexandros Hasson
  • Thermoplastic resin compositions containing polyphenylene ethers and polyesters
    Patent number: 5395883
    Abstract: Improved thermoplastic compositions are disclosed, comprising a polyphenylene ether resin capped with an epoxytriazine compound; a thermoplastic polyester; and a radial block copolymer which itself comprises at least about 60% by weight of a polymerized vinyl aromatic material, and about 5%-40% of a polymerized conjugated diene monomer.
    Type: Grant
    Filed: May 21, 1993
    Date of Patent: March 7, 1995
    Assignee: General Electric Company
    Inventors: John B. Yates, III, Alexandros Hasson
  • Thermoplastic resin compositions containing polyphenylene ethers and polyesters
    Patent number: 5237006
    Abstract: Improved thermoplastic compositions are disclosed, comprising a polyethylene ether resin capped with an epoxytriazine compound; a thermoplastic polyester; and a radial block copolymer which itself comprises at least about 60% by weight of a polymerized vinyl aromatic material, and about 5%-40% of a polymerized conjugated diene monomer.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: August 17, 1993
    Assignee: General Electric Company
    Inventors: John B. Yates, III, Alexandros Hasson
  • Method for removing volatile substances from polyphenylene ether or polyphenylene ether/styrene resin compositions
    Patent number: 5204410
    Abstract: Volatile substances in polyphenylene ether or polyphenylene ether/polystyrene compositions are substantially reduced by extruding the resins in a single pass using a plurality of stages comprising water injection and vacuum venting.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: April 20, 1993
    Assignee: General Electric Company
    Inventors: John P. Banevicius, Alexandros Hasson, William E. Pecak
  • Method for removing volatile substances from polyphenylene ether resin blends
    Patent number: 5102591
    Abstract: A method for removing volatile substances from polyphenylene ether (PPE) resin blends in an extruder comprising adding a second thermoplastic resin downstream from the PPE feedport and one stage of water injection followed by vacuum venting is disclosed.
    Type: Grant
    Filed: December 27, 1989
    Date of Patent: April 7, 1992
    Assignee: General Electric Company
    Inventors: Alexandros Hasson, Raymond J. Gerhart
  • Low odor polyphenylene ether/polystyrene process
    Patent number: 4994217
    Abstract: Low odor polyphenylene ether/polystyrene resins are produced in a process by solution blending low odor polyphenylene ether and polystyrene resins and passing the solution through devolatilizers prior to recovery.
    Type: Grant
    Filed: December 29, 1988
    Date of Patent: February 19, 1991
    Assignee: General Electric Company
    Inventors: John P. Banevicius, William M. Bunting, Alexandros Hasson, Susan J. Hathaway, William E. Pecak, John P. Skilbeck
  • Method for removing volatile substances from polyphenylene ether or polyphenylene ether/styrene resin compositions
    Patent number: 4992222
    Abstract: Volatile substances in polyphenylene ether or polyphenylene ether/polystyrene compositions are substantially reduced by extruding the resins in a single pass using a plurality of stages including water injection and vacuum venting.
    Type: Grant
    Filed: December 29, 1988
    Date of Patent: February 12, 1991
    Assignee: General Electric Company
    Inventors: John P. Banevicius, Alexandros Hasson, William E. Pecak
  • Polyphenylene ether/rubber modified polystyrene composition suitable for blow molding large parts
    Patent number: 4900786
    Abstract: Polyphenylene ether/rubber modified polystyrene compositions are uniquely suitable for flow molding large, e.g., 10 pounds or more, parts when the rubber modified polystyrene contains at least 12 percent by weight of particulate rubber, the rubber particles have an average diameter of greater than about 3 microns, and the compositions have an R* value of greater than about 16. R* is the ratio of the low shear rate viscosity to the high shear rate viscosity at the optimum processing temperature.
    Type: Grant
    Filed: June 23, 1988
    Date of Patent: February 13, 1990
    Assignee: General Electric Company
    Inventors: Visvaldis Abolins, Alexandros Hasson
  • Method for removing volatile impurities from polyphenylene ethers
    Patent number: 4831115
    Abstract: Polymer compositions comprising polyphenylene ethers free from polystyrenes are extruded with vacuum venting at 300.degree. C. or above in the presence of water. This extrusion operation reduces the content of volatile impurities, including those with an undesirable odor.
    Type: Grant
    Filed: February 16, 1988
    Date of Patent: May 16, 1989
    Assignee: General Electric Company
    Inventors: Joseph C. Golba, Jr., Sterling B. Brown, Alexandros Hasson