Patents by Inventor Charles R. Milburn

Charles R. Milburn 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: 6444852
    Abstract: A novel amine is provided with improved water dispersibility which is useful to modify the formation of hydrates in streams containing low-boiling hydrocarbons and water.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: September 3, 2002
    Assignee: Goldschmidt Chemical Corporation
    Inventors: Charles R. Milburn, Gary M. Sitz
  • Patent number: 5667577
    Abstract: Disclosed are filled oil-in-water asphalt emulsions which remain homogeneous for prolonged periods of time notwithstanding the presence of particulate filler that might be expected to break the emulsions. The emulsions contain asphalt dispersed as the discontinuous phase in an aqueous continuous phase, particulate filler, and one or more amphoteric emulsifiers selected from the group consisting of compounds of the formulas (a) and (b)R.sup.4 --(OC.sub.3 H.sub.6).sub.0-1 --(C(O)NH(CH.sub.2).sub.1-3).sub.0-1 --N(Z.sup.1) (Z.sup.2).sub.0-1 --ZCOOX (a)R.sup.4 --(OC.sub.3 H.sub.6).sub.0-1 (C(O)NH(CH.sub.2).sub.1-3).sub.0-1 --N(Z.sup.1) (Z.sup.2).sub.0-1 --ZSO.sub.3 XH (b)wherein R.sup.4 is C.sub.4-24 alkyl or alkylene, f is 1-6, is --H or a cation, Z is (CH.sub.2).sub.f, CH.sub.2 CHOHCH.sub.2, or CH.sub.2 CH.sub.2 OCH.sub.2 CH.sub.2, and Z.sup.1 and Z.sup.2 are C.sub.f H.sub.2f+1 or C.sub.f H.sub.2f OH, or in (a) Z.sup.1 can be --ZCOOX.
    Type: Grant
    Filed: June 5, 1996
    Date of Patent: September 16, 1997
    Assignee: Witco Corporation
    Inventors: Roger K. Chatterjee, Charles R. Milburn
  • Patent number: 5667576
    Abstract: Disclosed are oil-in-water asphalt emulsions comprising asphalt dispersed as the discontinuous phase in an aqueous continuous phase, the emulsions containing one or more anionic emulsifiers selected from the group consisting of compounds of the formulas (Ia), (Ib), (II), and (III)(R.sup.1 CH(OH)--(CH.sub.2).sub.m SO.sub.3).sub.1 X (Ia)(R.sup.1 CH.dbd.CH(CH.sub.2).sub.m-1 SO.sub.3).sub.1 X (Ib)(R.sup.2 O--(AlkO).sub.c CH.sub.2 COO).sub.1 X (II)((R.sup.3).sub.x --(A)--SO.sub.3).sub.1 X (III)wherein R.sup.1, R.sup.2, and R.sup.3 are C.sub.6-40 hydrocarbyl, m is 1-10, X is --H or a cation, c is 1-20, A is phenyl or polycyclic aromatic, k is 1-3, and i is the valence of X.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: September 16, 1997
    Assignee: Witco Corporation
    Inventors: Roger K. Chatterjee, Charles R. Milburn
  • Patent number: 5558702
    Abstract: Disclosed are oil-in-water asphalt emulsions comprising asphalt dispersed as the discontinuous phase in an aqueous continuous phase, the emulsions containing one or more amphoteric emulsifiers selected from the group consisting of compounds of the formulas (a) and (b)R.sup.4 --(OC.sub.3 H.sub.6).sub.o-1 --(C(O)NH(CH.sub.2).sub.1-3).sub.0-1 --N(Z.sup.1) (Z.sup.2).sub.0-1 --ZCOOX (a)R.sup.4 --(OC.sub.3 H.sub.6).sub.o-1 (C(O)NH(CH.sub.2).sub.1-3 --N(Z.sup.1)(Z.sup.2).sub.0-1 --ZSO.sub.3 XH (b)wherein R.sup.4 is C.sub.4-24 alkyl or alkylene, f is 1-6, is --H or a cation, Z is (CH.sub.2).sub.f, CH.sub.2 CHOHCH.sub.2, or CH.sub.2 CH.sub.2 OCH.sub.2 CH.sub.2, and Z.sup.1 and Z.sup.2 are C.sub.f H.sub.2f+1 or C.sub.f H.sub.2f OH, or in (a) Z.sup.1 can be --ZCOOX.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: September 24, 1996
    Assignee: Witco Corporation
    Inventors: Roger K. Chatterjee, Charles R. Milburn