Patents by Inventor Edward H. Gleason

Edward H. Gleason 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).

  • Coated papers
    Patent number: 4477535
    Abstract: Paper having enhanced gloss and pick resistance may be prepared using as a binder a latex of heterogeneous particles having a core and shell type structure. The polymer particles have a composition such that the shell is harder than the core.
    Type: Grant
    Filed: May 9, 1983
    Date of Patent: October 16, 1984
    Assignee: Polysar International S.A.
    Inventors: Alvin R. Sinclair, Edward H. Gleason
  • Hard shell soft core latex
    Patent number: 4413068
    Abstract: Paper coating compositions manufactured from a novel latex comprising about 40 to 60 weight percent of heterogeneous polymer particles which have:(1) an initial domain, comprising about 50% by volume of the particle which is a polymer of a monomer composition comprising:(a) From about 55 to about 65 parts by weight of a monovinylidene aromatic monomer;(b) From about 45 to about 35 parts by weight of an aliphatic C.sub.4-6 conjugated diene monomer; and per 100 parts by weight of the total of said monovinylidene aromatic monomer and said aliphatic C.sub.4-6 conjugated diene monomer;(c) from about 0.5 to 5 parts by weight of C.sub.3-5 ethylenically unsaturated carboxylic acid; and(d) from about 0.5 to 5 parts by weight of a C.sub.
    Type: Grant
    Filed: July 2, 1981
    Date of Patent: November 1, 1983
    Assignee: Polysar International S.A.
    Inventors: Alvin R. Sinclair, Edward H. Gleason