Patents Assigned to Peter Robin Broughton Lawrence
  • Amine salts and products containing them
    Patent number: 4574151
    Abstract: A water soluble salt is formed between an alkaloid and a polymeric acid and contains at least 40% by weight of the alkaloid. The alkaloid is generally nicotine and the polymeric acid is generally a polysaccharide that has been modified by carboxyalkyation or reaction with a polybasic acid. The resultant salt can be formed as a film, a particulate solid or as an aqueous solution and the solution can be used for printing.
    Type: Grant
    Filed: August 11, 1983
    Date of Patent: March 4, 1986
    Assignee: Peter Robin Broughton Lawrence
    Inventor: Brian W. Adams