Patents by Inventor Henry J. Nelson

Henry J. Nelson 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).

  • Paint stripping composition and method of making and using the same
    Patent number: 4749510
    Abstract: A paint stripper composition comprising a mixture of N-methyl-2-pyrrolidone and an aromatic, high flash hydrocarbon solvent applied to a painted surface for stripping paint. Accelerators useful in the mixture are an organic acid such as formic acid or an amine such as monoethanolamine. The paint stripper composition may also include an oil soluble surfactant to aid in wetting the surface of the object to be stripped. Also, a water soluble surfactant may be added to facilitate water rinsing the composition and loosened paint from the surface. The paint stripper may be thickened by addition of ethylcellulose to form a paint stripping composition having a thickness appropriate for immersion, spray, brush or knife application. The composition of the paint stripper may comprise from 20-90% by weight of N-methylpyrrolidone, 30-70% by weight 140.degree. F.
    Type: Grant
    Filed: April 14, 1986
    Date of Patent: June 7, 1988
    Assignee: Grow Group, Inc.
    Inventor: Henry J. Nelson