Patents Assigned to Kanzaki Paper Mfg.
  • Method of desensitizing a pressure sensitive recording sheet and the product thereof
    Patent number: 3931430
    Abstract: The pressure sensitive recording sheet is partially desensitized by applying an improved desensitizer to a predetermined area thereof. The improved desensitizer comprises a reaction product produced by the reaction of ammonia, amines, diamines or polyamines with glycidyl esters or glycidyl ethers. The improved desensitizer is hydrophobic and soluble in an oil vehicle.
    Type: Grant
    Filed: November 7, 1973
    Date of Patent: January 6, 1976
    Assignee: Kanzaki Paper Mfg. Co. Ltd.
    Inventors: Tomonori Tada, Akira Shiono