Patents by Inventor Albert L. Promislow

Albert L. Promislow 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).

  • Organic polymers having a modified surface and process therefor
    Patent number: 5562988
    Abstract: Organic polymer surfaces are modified by contacting such surfaces with a haloester compound and a cationic compound of having a pK.sub.a >5. Preferably the organic polymer is selected from the group consisting of polyesters, aromatic polyamides, and graphitic polymers and the contacting is conducted at an elevated temperature.
    Type: Grant
    Filed: October 26, 1995
    Date of Patent: October 8, 1996
    Assignee: Hoechst Celanese Corporation
    Inventors: Norman S. Anderson, Albert L. Promislow
  • Organic polymers having a modified surface and process therefor
    Patent number: 5525424
    Abstract: Organic polymer surfaces are modified by contacting such surfaces with a halohydroxy compound and a cationic compound of a volatile acid having a pK.sub.a >2.5. Preferably the organic polymer is selected from the group consisting of polyesters, aromatic polyamides and graphitic polymers and the contacting is conducted at an elevated temperature.
    Type: Grant
    Filed: November 4, 1993
    Date of Patent: June 11, 1996
    Assignee: Hoechst Celanese Corporation
    Inventors: Norman S. Anderson, Albert L. Promislow
  • Organic polymers having a surface modified with haloester polymers
    Patent number: 5483010
    Abstract: Organic polymer surfaces are modified by contacting such surfaces with a haloester compound and a cationic compound of having a pK.sub.a >5. Preferably the organic polymer is selected from the group consisting of polyesters, aromatic polyamides, and graphitic polymers and the contacting is conducted at an elevated temperature.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: January 9, 1996
    Assignee: Hoechst Celanese Corporation
    Inventors: Norman S. Anderson, Albert L. Promislow
  • Organic polymers having a modified surface and process therefor
    Patent number: 5328765
    Abstract: Organic polymer surfaces are modified by contacting such surfaces with a halohydroxy compound and a cationic compound of an acid having a pK.sub.a >2.5. Preferably the organic polymer is selected from the group consisting of polyesters, aromatic polyamides, polyimides, and graphitic polymers and the contacting is conducted at an elevated temperature.
    Type: Grant
    Filed: September 28, 1992
    Date of Patent: July 12, 1994
    Assignee: Hoechst Celanese Corporation
    Inventors: Norman S. Anderson, Albert L. Promislow
  • Novel polyether containing at least one 2-halomethyloxyethylene unit and 2,3-dihydroxypropyl end groups
    Patent number: 4929769
    Abstract: A halogenated polyether is provided having a chemical structure which has been found to possess the requisite characteristics for satisfactory service as a promoter of good adhesion between a polymeric surface (e.g., a polyethylene terephthalate tire cord) and an elastomeric material (e.g., rubber). The halogenated polyether may be formed by (1) the reaction of an organic polyhydroxy compound with epihalohydrin (e.g., epichlorohydrin) to create ether linkages, (2) the epoxidation of the ends of the ether chains which extend from the residual portion of the organic polyhydroxy compound, and (3) the substantial hydrolysis of the epoxy groups (as described). The resulting halogenated polyether is substantially free of epoxy groups, contains at least one 2-halomethyloxyethylene unit, and contains 2,3-dihydroxypropyl end groups (as described). Such halogenated polyether optionally may be provided in the form of an oligomer (as described).
    Type: Grant
    Filed: April 28, 1989
    Date of Patent: May 29, 1990
    Assignees: Hoechst Celanese Corporation, Alkaril Chemicals, Inc.
    Inventors: Norman S. Anderson, Albert L. Promislow, Randy L. Rayborn, Rastko Vukov