Patents by Inventor Mean-Jeng Hou

Mean-Jeng Hou 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).

  • Patent number: 5385639
    Abstract: A process is disclosed for deinking pulp which has been made from paper printed with oil based ink. The process uses a surfactant component with and at least one alkoxylated diamine selected from Formula I: ##STR1## where X, Y, W and Z may be alike or different and are each independently selected from the group consisting of(i) --(CH.sub.2 --CH(CH.sub.3)--O).sub.a (CH.sub.2 --CH.sub.2 --O).sub.b --;(ii) --(CH.sub.2 --CH.sub.2)--O).sub.c (CH.sub.2 --CH(CH.sub.3)--O).sub.d --; and(iii) random copolymers of ethylene oxide and propylene oxide,wherein a, b, c and d are each selected independently to be a number between 1 and 30 so as to give an HLB value between 5-15.
    Type: Grant
    Filed: August 27, 1993
    Date of Patent: January 31, 1995
    Assignee: Hoechst Celanese Corporation
    Inventors: Mean-Jeng Hou, Narayanasamy Seenivasan
  • Patent number: 5384010
    Abstract: A process is disclosed for deinking pulp which has been made from paper printed with flexographic ink. The process uses a surfactant component made from a fatty acid or a fatty acid blend and at least one alkoxylated diamine selected from Formula I: ##STR1## where X, Y, W and Z may be alike or different and are each independently selected from the group consisting of(i) --(CH.sub.2 --CH(CH.sub.3)--O).sub.a (CH.sub.2 --CH.sub.2 --O).sub.b --;(ii) --(CH.sub.2 --CH.sub.2)--O).sub.c (CH.sub.2 --CH(CH.sub.3)--O).sub.d --; and(iii) random copolymers of ethylene oxide and propylene oxide,wherein a, b, c and d are each selected independently to be a number between 1 and 30 so as to give an HLB value between 5-15.
    Type: Grant
    Filed: August 27, 1993
    Date of Patent: January 24, 1995
    Assignee: Hoechst Celanese Corporation
    Inventors: Mean-Jeng Hou, Narayanasamy Seenivasan
  • Patent number: 5030678
    Abstract: Disclosed are cationic aqueous emulsions containing (a) sizing composition comprising the reaction product of melamine formaldehyde compound, long chain saturated alcohol and long chain saturated or unsaturated polyethoxylated alcohol; and (b) cationic surfactant. The emulsions when used to surface size paper impart improved oil, water and polar solvent resistance thereto. The emulsions may be used alone or as substantial replacements for anionic or non-ionic fluorocarbon based emulsions that are typically used to impart oil resistance to paper.
    Type: Grant
    Filed: July 2, 1990
    Date of Patent: July 9, 1991
    Assignee: PPG Industries, Inc.
    Inventors: Sai H. Hui, Mean-Jeng Hou
  • Patent number: 4997479
    Abstract: This invention relates to urea-free high solids content aqueous calcium stearate dispersions useful as lubricating agents in paper and paperboard coating compositions.
    Type: Grant
    Filed: February 5, 1990
    Date of Patent: March 5, 1991
    Assignee: PPG Industries, Inc.
    Inventors: Mean-Jeng Hou, Sai H. Hui