Patents Assigned to Transcopy, Inc.
  • Patent number: 4528242
    Abstract: An improved ink jet recording transparency is described herein which is capable of absorbing colored, aqueous-miscible inks to provide very high density images which are permanent and smear resistant. This transparency article includes a transparent resinous support and an improved coating which is clear and comprises a mixture of a carboxylated polymer or copolymer, having a molecular weight of about 50,000 to 1 million, and a polyalkylene glycol having an average molecular weight of about 5,000 to 25,000, preferably 15,000 to 25,000, the glycol being present in an amount of about 5% to 70%, preferably 10% to 25%, by weight of said polymer.
    Type: Grant
    Filed: March 20, 1984
    Date of Patent: July 9, 1985
    Assignee: Transcopy, Inc.
    Inventor: Herman Burwasser
  • Patent number: 4474850
    Abstract: A novel and useful ink jet recording transparency is described herein which is capable of wetting and absorbing colored, water soluble inks to provide permanent, high density images which are smear resistant. The transparency article of the invention includes a transparent resinous support which has a defined coating thereon. The coating is clear and consists essentially of a carboxylated, high molecular weight polymer or copolymer, or salts thereof, and, optionally, a pigment which is a particulate material. In the preferred embodiment of the invention, wherein high density images may be formed on a coated transparency from multiple jets of different colored inks which absorb such inks rapidly, the coating includes a carboxylated acrylic polymer which has been reacted with an organic amine.
    Type: Grant
    Filed: November 2, 1983
    Date of Patent: October 2, 1984
    Assignee: Transcopy, Inc.
    Inventor: Herman Burwasser