Patent ID: 6468650
Filing Date: 2002-10-22
Classification: C08L,C09J,Y10T

Abstract:
A self-adhesive composition, comprising a base polymer of polyethylene-vinyl acetate (EVA) having a vinyl acetate 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 190Â° C. and 2.16 kg, which is blended with a polyether having a fraction of from 1 to 35% by weight of the formXOâ€”[(CH2)4â€”O]â€”Yâ€ƒâ€ƒ(1) orXOâ€”[(CH(CH3)â€”CH2â€”O]â€”Yâ€ƒâ€ƒ(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 Hâ€”, (CnH2n+1)â€” where n is from 1 to 20, CH2&boxH;CHCOâ€”, CH3CH(NH2)CH2â€”, 2,3-epoxypropyl, C6H5â€”COâ€”, and CH2&boxH;C(CH3)â€”COâ€”.