| 摘要 |
<p>A binder comprising 5-50 wt% of a mixture (A) and 50-95 wt% polypropylene (PP) (co)polymer, in which (A) contains 5-100 wt% of an unsaturated acid-grafted mixture of metallocene polyethylene and LLDPE or PP (co)polymer and 95-0 wt% polyethylene homo- or co-polymer or elastomer. A binder comprising (A) 5-50 wt% of a mixture containing (a1) 5-100 wt% of a mixture of copolymers comprising (C1) 90-20 wt% metallocene polyethylene with a density of 0.865-0.915 and (C2) 10-80 wt% non-metallocene LLDPE or polypropylene homo- or co-polymer, the mixture (C1 + C2) being co-grafted with an unsaturated carboxylic acid monomer or a functional derivative thereof and (a2) 95-0 wt% polyethylene (homopolymer, copolymer or elastomer), such that (A) has a grafting monomer content of 30-100000 ppm and an MFI (190/2.16) of 0.1-30 g/10 min, and (B) 50-95 wt% polypropylene homo- or co-polymer. Independent claims are also included for: (1) a multilayer structure with a layer (2) of binder as above; (2) film with a multilayer structure as above; (3) film comprising a printed layer of biaxially-oriented polypropylene (BOPP) or polyethylene terephthalate (BOPET) and an adhesively-bonded metallised multilayer film as above, in which the film may or may not be biaxially-oriented and the metal layer (1) is directly bonded to the BOPP or BOPET by the adhesive; and (4) objects made with multi-layer structures or film as above.</p> |
