Patents Represented by Attorney Frank M. Van Riet

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  • Composition for adhesion of rubber to reinforcing materials
    Patent number: 4284536
    Abstract: A vulcanizable rubber composition comprising a rubber, a vulcanizing agent and various imidazolidinones is disclosed.
    Type: Grant
    Filed: June 23, 1980
    Date of Patent: August 18, 1981
    Assignee: American Cyanamid Co.
    Inventor: Rao S. Bezwada
  • Thiodiethanol-based polyurethane elastomers having improved dynamic properties and method for production thereof
    Patent number: 4284761
    Abstract: A method for the preparation of a polyetherthioether copolymer glycol represented by the formula:H--OC.sub.2 H.sub.4 SC.sub.2 H.sub.4 --.sub.x --OC.sub.4 H.sub.8 --.sub.y OHwherein the mole ratio x/y is in the range of about 45:55 to 60:40, respectively. More specifically, a method for the preparation of a copolymer of thiodiethanol and 1,4-butanediol wherein the mole ratio x/y is about 50:50. Also, the copolymers produced thereby and polyurethane elastomers produced therefrom, particularly those produced from the 50:50 copolymer, and to their use in solid tires having improved dynamic mechanical properties.
    Type: Grant
    Filed: July 23, 1980
    Date of Patent: August 18, 1981
    Assignee: American Cyanamid Co.
    Inventors: Volker D. Arendt, Tsi T. Li
  • Acrylate copolymers grafted onto a polar, water-soluble backbone polymer
    Patent number: 4284740
    Abstract: Vulcanizable compositions comprising a polar, water-soluble backbone polymer having a copolymer of an acrylic acid ester and a curing-site containing comonomer grafted thereon and a method for the production thereof, are disclosed.
    Type: Grant
    Filed: March 31, 1980
    Date of Patent: August 18, 1981
    Assignee: American Cyanamid Co.
    Inventor: Eugene Y. C. Chang
  • Process for melt-spinning acrylonitrile polymer fiber using vertically disposed compression zone
    Patent number: 4283365
    Abstract: Use of a vertically disposed compression zone for providing a fusion melt of acrylonitrile polymer and water in conjunction with melt spinning provides reduced bubble count in the resulting fiber.
    Type: Grant
    Filed: February 21, 1979
    Date of Patent: August 11, 1981
    Assignee: American Cyanamid Company
    Inventors: Chi C. Young, Francesco DeMaria
  • Aqueous acrylic contact adhesive
    Patent number: 4280942
    Abstract: An adhesive composition comprising an aqueous emulsion of polyacrylates sufficiently stabilized in part with a vinyl alcohol polymer, a tackifying resin and a plasticizer is disclosed, which adhesive has utility as a low hazard contact cement for bonding on contact numerous materials to various substrates under a wide range of environmental work conditions.
    Type: Grant
    Filed: July 9, 1980
    Date of Patent: July 28, 1981
    Assignee: Formica Corporation
    Inventor: Robert W. Green
  • Apparatus for melt spinning hollow fibers
    Patent number: 4278415
    Abstract: Using a conventional spinneret plate with suitable pins inserted in the counterbore-orifice combination thereof, hollow fibers are provided.
    Type: Grant
    Filed: February 21, 1979
    Date of Patent: July 14, 1981
    Assignee: American Cyanamid Company
    Inventor: Ronald E. Pfeiffer
  • Biconstituent acrylic fibers by melt spinning
    Patent number: 4278634
    Abstract: A mixture of (1) a single phase melt of water and a first acrylonitrile polymer containing at least 85% acrylonitrile and (2) a pure melt of a second acrylonitrile polymer containing from about 60-72% acrylonitrile is extruded through the orifices of a spinneret directly into a steam-pressurized solidification zone to provide a biconstituent fiber which is stretched while within the solidification zone.
    Type: Grant
    Filed: August 18, 1980
    Date of Patent: July 14, 1981
    Assignee: American Cyanamid Company
    Inventors: Maurice M. Zwick, William J. van Loo
  • Spinnerette assembly
    Patent number: 4276011
    Abstract: A spinerette assembly wherein tapered passageways and distribution chambers of diminishing length are so arranged as to provide equal back pressure over all orifices thereby providing extrudates of improved uniformity of diameter after stretching.
    Type: Grant
    Filed: February 21, 1979
    Date of Patent: June 30, 1981
    Assignee: American Cyanamid Company
    Inventors: Edwin J. Siegman, Roy L. Yelverton
  • Laminate sheet
    Patent number: D260310
    Type: Grant
    Filed: February 9, 1979
    Date of Patent: August 18, 1981
    Assignee: Formica Corporation
    Inventors: William F. Yates, Ichiro Saito
  • Laminate sheet
    Patent number: D260311
    Type: Grant
    Filed: July 11, 1978
    Date of Patent: August 18, 1981
    Assignee: Formica Corporation
    Inventors: Harry R. Ford, Yasuo Yoshihashi
  • Laminate sheet
    Patent number: D260312
    Type: Grant
    Filed: July 11, 1978
    Date of Patent: August 18, 1981
    Assignee: Formica Corporation
    Inventors: Harry R. Ford, Koichi Hirakawa
  • Laminate sheet
    Patent number: D260313
    Type: Grant
    Filed: July 11, 1978
    Date of Patent: August 18, 1981
    Assignee: Formica Corporation
    Inventors: Harry R. Ford, Koichi Hirakawa
  • Laminate sheet
    Patent number: D260314
    Type: Grant
    Filed: February 9, 1979
    Date of Patent: August 18, 1981
    Assignee: Formica Corporation
    Inventors: William F. Yates, Ichiro Saito
  • Laminate sheet
    Patent number: D260315
    Type: Grant
    Filed: February 9, 1979
    Date of Patent: August 18, 1981
    Assignee: Formica Corporation
    Inventors: William F. Yates, Ichiro Saito
  • Laminate sheet
    Patent number: D260316
    Type: Grant
    Filed: February 9, 1979
    Date of Patent: August 18, 1981
    Assignee: Formica Corporation
    Inventors: William F. Yates, Ichiro Saito
  • Laminate sheet
    Patent number: D260317
    Type: Grant
    Filed: February 9, 1979
    Date of Patent: August 18, 1981
    Assignee: Formica Corporation
    Inventors: William F. Yates, Ichiro Saito
  • Laminate sheet
    Patent number: D261065
    Type: Grant
    Filed: July 11, 1978
    Date of Patent: September 29, 1981
    Assignee: Formica Corporation
    Inventors: Harry R. Ford, Yasuo Yoshihashi
  • Laminate sheet
    Patent number: D261189
    Type: Grant
    Filed: July 11, 1978
    Date of Patent: October 6, 1981
    Assignee: Formica Corporation
    Inventors: Harry R. Ford, Yasuo Yoshihashi
  • Laminate sheet
    Patent number: D261190
    Type: Grant
    Filed: July 11, 1978
    Date of Patent: October 6, 1981
    Assignee: Formica Corporation
    Inventors: Harry R. Ford, Yasuo Yoshihashi
  • Laminate sheet
    Patent number: D261191
    Type: Grant
    Filed: July 11, 1978
    Date of Patent: October 6, 1981
    Assignee: Formica Corporation
    Inventors: Harry R. Ford, Yasuo Yoshihashi