Patents by Inventor Darwin Fiske DeLapp

Darwin Fiske DeLapp 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).

  • Low pressure melamine resin laminates
    Patent number: 4109043
    Abstract: A heat and pressure consolidated structure comprising, in superimposed relationship,A a self-supporting substrate, andB a decorative .alpha.-cellulose paper sheet impregnated with a resin composition comprisingA mixture of a melamine/formaldehyde resin, an elastomer comprising an ethylene/vinyl chloride copolymer containing amide groups, a butadiene/acrylonitrile copolymer containing carboxyl groups or a polyurethane resin containing carboxyl groups and an alkylene polyamine, is disclosed.
    Type: Grant
    Filed: February 11, 1977
    Date of Patent: August 22, 1978
    Assignee: Formica Corporation
    Inventor: Darwin Fiske DeLapp
  • Low pressure melamine resins containing elastomers
    Patent number: 4094846
    Abstract: A composition of matter comprising a mixture of a melamine/formaldehyde resin, an elastomer comprising an ethylene/vinyl chloride copolymer containing amide groups, a butadiene/acrylonitrile copolymer containing carboxyl groups or a polyurethane resin containing carboxyl groups and an alkylene polyamine, is disclosed.
    Type: Grant
    Filed: February 11, 1977
    Date of Patent: June 13, 1978
    Assignee: Formica Corporation
    Inventor: Darwin Fiske DeLapp
  • Low pressure melamine resins containing an ethylene glycol and an elastomer
    Patent number: 4093579
    Abstract: A composition of matter comprising (1) a blend of an aqueous melamine/formaldehyde resin solution and from about 2 to about 20.0% of an ethylene glycol or (2) an aqueous solution of the resinous reaction product of melamine, formaldehyde and from about 2.0 to about 20.0% of an ethylene glycol, is disclosed.
    Type: Grant
    Filed: February 11, 1977
    Date of Patent: June 6, 1978
    Assignee: Formica Corporation
    Inventors: Darwin Fiske DeLapp, James Christopher Goebel, Kenneth Dana Bunkowski