Patents Assigned to Boston S.p.A.
  • Reactive hot melt composition
    Patent number: 4996283
    Abstract: A reactive hot melt composition comprises the products of the reaction between (A) an aliphatic or aromatic diisocyanate and (B) a mixture containing: (1) a crystalline polycarbonate diol, (2) an elastomeric polycarbonate diol or an elastomeric polycarbonate copolyester diol, and possibly (3) a vitreous polycarbonate diol or a vitreous polycarbonate copolyester diol. The process for preparing the reactive hot melt composition is also described .
    Type: Grant
    Filed: November 6, 1989
    Date of Patent: February 26, 1991
    Assignees: Enichem Synthesis S.p.A., Boston S.p.A.
    Inventors: Alberto Greco, Sergio Giordano, Enrico Pozzi, Patrizia Blasioli
  • Writable adhesive tape
    Patent number: 4708907
    Abstract: A writable adhesive tape is disclosed, which comprises a polyolefine substrate, having on one side an adhesive layer and on the opposite side a writable anti-adhesive layer. The writable anti-adhesive layer comprises 25% to 55% by weight of a chlorinated polyolefine, 20% to 50% by weight of a polyaldehyde resin together with 5% to 20% by weight of an anti-adhesive agent, and 5% to 25% by weight of a matting charge.
    Type: Grant
    Filed: April 26, 1985
    Date of Patent: November 24, 1987
    Assignee: Boston S.p.A.
    Inventors: Fulvio Flutti, Franco Ghezzi