Patents by Inventor H. Scott Killam

H. Scott Killam 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: 4454060
    Abstract: A foaming light duty aqueous liquid detergent composition especially useful for hand dishwashing containing 5 to 50 wt. % of non-cationic detergent active material, optional foam boosters and hydrotropes, and 0.1 to 10 wt. % of a cationic foam-stabilizing copolymer containing a major weight proportion of units derived from acrylamide and/or methacrylamide, about 0.5 to 2 wt. % of quaternary nitrogen as present in quaternary ammonium groups, and about 0.1 to 10 wt. % of pendant C.sub.8-24 hydrophobic, preferably alkyl groups.Said quaternary ammonium group-containing monomer has the formula ##STR1## wherein R.sub.1 is H or CH.sub.3, R.sub.2 and R.sub.3 are independently C.sub.1-4 alkyls,R.sub.4 is C.sub.1-4 akyl, C.sub.2-3 hydroxyalkyl, or benzylR.sub.2, R.sub.3 and R.sub.4 together contain less than 9 carbon atoms,Z is a water-solubilizing salt-forming anion, andM may be --CO--X--, then X is --O-- or --NR.sub.5 --, R.sub.5 is H or C.sub.
    Type: Grant
    Filed: June 9, 1983
    Date of Patent: June 12, 1984
    Assignee: Colgate-Palmolive Company
    Inventors: Kuo-Yann Lai, Robert C. Pierce, Jean Dupre, H. Scott Killam
  • Patent number: 4234381
    Abstract: An effective amount of a vinylbenzyltrialkylammonium salt, prepared from a vinylbenzyl halide and a tertiary amine, is polymerized with various other monomers to afford stable latex polymers which have the latex stabilizing surfactant incorporated into the polymer backbone. The use of a vinylbenzyltrialkylammonium salt lessens or avoids the usual problems associated with the conventional anionic, nonionic or cationic emulsifiers employed in aqueous polymerizations. The copolymers prepared with the quaternary ammonium compounds are useful as sizing agents, as extender/binders for cationic water repellents; in addition, the polymers are depositable on pulp without requiring any deposition aids or defoamers.
    Type: Grant
    Filed: February 1, 1979
    Date of Patent: November 18, 1980
    Assignee: Rohm and Haas Company
    Inventor: H. Scott Killam
  • Patent number: 4167439
    Abstract: A non-ionic copolymer composed of (in weight percent) 5 to 30% N-vinyl pyrrolidone, 15 to 60% acrylamide, and 30 to 70% methyl methacrylate is disclosed. The copolymer is added in minor amount to paper pulp, especially pulp containing black liquor contamination, to improve the paper making operation and the dry strength of the paper.
    Type: Grant
    Filed: September 12, 1977
    Date of Patent: September 11, 1979
    Assignee: Rohm and Haas Company
    Inventor: H. Scott Killam
  • Patent number: 4152201
    Abstract: An effective amount of a vinylbenzyltrialkyl ammonium salt, prepared from a vinylbenzyl halide and a tertiary amine, is polymerized with various other monomers to afford stable latex polymers which have the latex stabilizing surfactant incorporated into the polymer backbone. The use of a vinylbenzyltrialkyl ammonium salt lessens or avoids the usual problems associated with the conventional anionic, nonionic or cationic emulsifiers employed in aqueous polymerizations, that is, the latex stabilizing surfactant incorporated into the polymer backbone is the sole emulsifier. The copolymers prepared with the quaternary ammonium compounds are useful as sizing agents, as extender/binders for cationic water repellents; in addition, the polymers are depositable on pulp without requiring any deposition aids or defoamers.
    Type: Grant
    Filed: November 15, 1976
    Date of Patent: May 1, 1979
    Assignee: Rohm and Haas Company
    Inventor: H. Scott Killam
  • Patent number: 4017440
    Abstract: An effective amount of a vinylbenzyltrialkylammonium salt, prepared from a vinylbenzyl halide and a tertiary amine, is polymerized with various other monomers to afford stable latex polymers which have the latex stabilizing surfactant incorporated into the polymer backbone. The use of a vinylbenzyltrialkylammonium salt lessens or avoids the usual problems associated with the conventional anionic, nonionic or cationic emulsifiers employed in aqueous polymerizations; that is, the latex stabilizing surfactant incorporated into the polymer backbone is the sole emulsifier employed. The copolymers prepared with the quaternary ammonium compounds are useful as sizing agents, as extender/binders for cationic water repellents; in addition, the polymers are depositable on pulp without requiring any deposition aids or defoamers.
    Type: Grant
    Filed: October 10, 1973
    Date of Patent: April 12, 1977
    Assignee: Rohm and Haas Company
    Inventor: H. Scott Killam