Patents Represented by Attorney, Agent or Law Firm Morris, McLaughlin & Marcus
  • Patent number: 6492017
    Abstract: A surface protection film comprising a transparent backing of polypropylene or propylene-ethylene copolymer, which comprises a light stabilizer, and a self-adhesive composition of polyethylene-vinyl acetate (EVA) having a VA fraction of from 40 to 80% by weight and a melt index MFI in accordance with ISO 1133 (A/4) of from 0.5 to 25 g/10 min at 190° C. and 2.16 kg, which is blended with from 0 to 35% by weight of a polyether of the form XO—[(CH2)4—O]—Y  (1) or XO—[(CH(CH3)—CH2—O]—Y  (2) having a weight-average molecular weight Mw of from 200 to 100,000 g/mol, X and Y being selected from the group consisting of H—, (CnH2n+1)— where n is from 1 to 20, CH2═CHCO—, CH3CH(NH2)CH2—, 2,3-epoxypropyl- or C6H5—CO—, CH2═C(CH3)—CO—.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: December 10, 2002
    Assignee: tesa AG
    Inventors: Nicolai Böhm, Jobst-Waldemar Klemp, Horst-Günther Ströh