Patent ID: 6582762
Filing Date: 2003-06-24
Classification: C08F,C08L,C09J

Abstract:
A process for atomizing, spiral spraying, oscillation spraying or melt blowing copolymers onto a substrate comprising selecting a poly-alpha olefin inter-polymer comprising:A) from 60 to 94 mol % of units derived from an alpha mono-olefin having from 3 to 6 carbon atoms and B) from 6 to 40 mol % of units derived from ethylene or one or more other mono-olefins having from 4 to 10 carbon atoms and at least one carbon atom more than A); and C) optionally from 0 to 10 mol % of units derived from another copolymerizable unsaturated hydrocarbon, different from A) and B); wherein the inter-polymer has:i) an Mw/Mn of 6 or less; ii) a storage modulus Gâ€², determined upon cooling, intersecting a value of 0.3 M Pa at a temperature of less than 85Â° C. measured at a frequency of 1 Hz; iii) a Gâ€³/Gâ€² ratio of 18 or more when Gâ€² is 10 Pa; and iv) a viscosity of 5000 mPaÂ·sec or less at 190Â° C., and atomizing, spiral spraying, oscillation spraying or melt blowing the inter-polymer onto a substrate.