Patents Assigned to Vibac S.p.A.
  • Patent number: 5168002
    Abstract: A noiseless, printable self-adhesive tape comprises a substrate in the form of an olefinic polymer film, a pressure-sensitive adhesive layer on one face of the substrate, and a printable, non-stick layer on the other face of the substrate. The non-stick layer is formed by a composition including a chlorinated olefinic resin and an acrylic resin in which the ratio by weight of the acrylic resin to the chlorinated olefinic resin may vary from 4:1 to 1:4. The composition also includes from 0.1 to 2 parts by weight of a non-stick agent per 100 parts by weight of the sum of the first two components, the non-stick agent being prepared by the reaction of an alkyl isocyanate with polyvinyl alcohol and a reactive silicon compound.
    Type: Grant
    Filed: September 24, 1991
    Date of Patent: December 1, 1992
    Assignee: Vibac S.p.A.
    Inventor: Adriano Maietti
  • Patent number: 4587167
    Abstract: The release-coating composition for producing a pressure-sensitive, printable adhesive tape is constituted by a polymeric component comprising from 10 to 85 parts by weight of a ketone resin, from 0 to 80 parts by weight of a polyamide resin and from 0 to 30 parts by weight of a ketone resin modified by reaction with alkylisocyanates, and solvents for the polymeric component. For the production of a printed adhesive tape, there is used, in combination with said release-coating composition, an ink comprising, with reference to the weight of the ink form 25% to 35% by weight of a polyamide resin which is soluble in alcohols and from 0.3% to 1% by weight of a silicone polymer as a slip agent.
    Type: Grant
    Filed: April 30, 1984
    Date of Patent: May 6, 1986
    Assignee: Vibac S.p.A.
    Inventors: Adriano Maietti, Carlo Borgatelli