Melt-blown webs having no shots and improved barrier properties, whereby the melt-blown webs are made out of a so-called “controlled rheology” propylene (CR-PP), which was visbroken without any peroxide.

Melt-blown webs having no shots and improved barrier properties, whereby the melt-blown webs are made out of a so-called “controlled rheology” propylene (CR-PP), which was visbroken without any peroxide.

Articles and methods related to the manufacture of polymers containing labile crosslinking moieties are generally described.

Articles and methods related to the manufacture of polymers containing labile crosslinking moieties are generally described.

Articles and methods related to the manufacture of polymers containing labile crosslinking moieties are generally described.

High quality melt-blown webs having improved barrier properties (3rd drop, cm H2O resp. mbar) and a widened process window. The melt-blown webs show a specific chain structure.

High quality melt-blown webs having improved barrier properties (3rd drop, cm H2O resp. mbar) and a widened process window. The melt-blown webs show a specific chain structure.

High quality melt-blown webs having improved barrier properties (3rd drop, cm H2O resp. mbar) and a widened process window. The melt-blown webs show a specific chain structure.

New polypropylene composition, which combines low sealing initiation temperature (SIT), high hot-tack and good optical properties, like low haze, the use of such polypropylene composition and articles made therefrom.

New polypropylene composition, which combines low sealing initiation temperature (SIT), high hot-tack and good optical properties, like low haze, the use of such polypropylene composition and articles made therefrom.