Patents by Inventor Fredrick J. Parker

Fredrick J. Parker 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).

  • Pigmentation of plastics moulding material
    Patent number: 4127555
    Abstract: A method of producing pigmented extrudates or mouldings from an unpigmented thermosetting moulding material, which comprises roughly blending a pigment component with an aminoplast moulding material substantially free from pigment and having an average particle size not greater than 150 microns, and completely dispersing the pigment compound through the aminoplast moulding material by progressing the rough blend through an extruder or injection moulding machine having a barrel grooved in accordance with German Offenlegungschrift No. 2514307, and extruding or injection moulding the resulting pigmented material.
    Type: Grant
    Filed: September 29, 1975
    Date of Patent: November 28, 1978
    Assignee: British Industrial Plastics Limited
    Inventors: Brian J. Kendall-Smith, Fredrick J. Parker, Norman B. Nicklin