Patents Represented by Attorney Joanne W. Patterson
  • Patent number: 4659552
    Abstract: Disclosed are macroreticulate polymer scavengers functionalized with arsenic or phosphorus compounds. These scavengers are used for removing oxidants, protic acids and compounds that can be metallated, from arsine and phosphine.
    Type: Grant
    Filed: July 21, 1986
    Date of Patent: April 21, 1987
    Assignee: Hercules Incorporated
    Inventor: Glenn M. Tom
  • Patent number: 4613520
    Abstract: Described are coating compositions having improved antistatic properties and particularly magnetic coating compositions suitable for magnetic recording media. The compositions comprise at least one film-forming synthetic resin and, based on coating solids, from about 0.2 to about 10% of an alkali, alkaline earth, ammonium or amine salt of a perfluoroalkyl sulfonic acid or carboxylic acid.
    Type: Grant
    Filed: January 25, 1985
    Date of Patent: September 23, 1986
    Assignee: Hercules Incorporated
    Inventor: Sunil P. Dasgupta
  • Patent number: 4613635
    Abstract: Disclosed is a composition useful for preparing paperboard containers comprising wood pulp, polyolefin pulp containing carboxylic functionality and a water-soluble cationic wet-strength resin. The paperboard is used for preparing containers for liquids such as juices and dairy products. The filled containers have improved durability when exposed to high humidity.
    Type: Grant
    Filed: April 8, 1985
    Date of Patent: September 23, 1986
    Assignee: Hercules Incorporated
    Inventor: Peter G. Bither
  • Patent number: 4604270
    Abstract: Lewis acid and oxidant impurities are removed from inert fluids by contacting with a high capacity macroreticulate polymer comprising a macroreticulate polymer backbone having a plurality of pendant functional groups or mixtures of functional groups having the general formula: ##STR1## where Ar is an aromatic hydrocarbon radical containing from one to three rings; R.sub.1 and R.sub.2 are the same or different and are selected from the group consisting of hydrogen, alkyl hydrocarbon radicals, methylene-bridged benzophenone radicals, salts of methylene-bridged benzophenone, methylene-bridged fluorenone radicals and salts of methylene-bridged fluorenone; and M is selected from the group consisting of lithium, potassium, sodium, alkyl magnesium, and alkyl zinc.
    Type: Grant
    Filed: July 31, 1985
    Date of Patent: August 5, 1986
    Assignee: Hercules Incorporated
    Inventor: Glenn M. Tom
  • Patent number: 4603148
    Abstract: Lewis acid and oxidant impurities are removed from inert fluids by contacting with a high capacity macroreticulate polymer comprising a macroreticulate polymer backbone having a plurality of pendant functional groups or mixtures of functional groups having the general formula: ##STR1## where Ar is an aromatic hydrocarbon radical containing from one to three rings; R.sub.1 and R.sub.2 are the same or different and are selected from the group consisting of hydrogen, alkyl hydrocarbon radicals, methylene-bridged benzophenone radicals, salts of methylene-bridged benzophenone, methylene-bridged fluorenone radicals and salts of methylene-bridged fluorenone; and M is selected from the group consisting of lithium, potassium, sodium, alkyl magnesium, and alkyl zinc.
    Type: Grant
    Filed: September 28, 1984
    Date of Patent: July 29, 1986
    Assignee: Hercules Incorporated
    Inventor: Glenn M. Tom