| 摘要 |
<p>An extrudable polymeric composition comprising a blend of 40 % to 80 % by weight of a tacky adhesive and 60 % to 20 % by weight of a non-tacky resin, said non-tacky resin having a viscosity of at least one and one half times less than the viscosity of the tacky adhesive when viscosity is measured at a shear rate similar to that encountered during extrusion. The composition may be used as a sealant layer for a cold seal mechanism in multilayer polymeric films, or alternatively may be used in the form of a strip to create a reclosable, cold seal mechanism for a wide range of substrates.</p> |
