Polyolefin resin composition and oriented film therefrom

An oriented polyolefin resin film obtained by orienting a sheet of a polyolefin resin composition at least in a uniaxial direction, wherein said polyolefin resin composition comprises:

• (a) 100 parts by weight of a polyolefin resin;
• and
• (b) 0.05 to 1 part by weight of beads of a crosslinked polymer comprising (1) 5 to 99% by weight of a first monomer unit derived from a radically polymerizable monomer represented by the general formula (A):
• ##STR3## wherein R.sub.2 is hydrogen or a hydrocarbon group having 1 to 5 carbon atoms and R.sub.2 is a hydrocarbon group having 5 to 30 carbon atoms, (2) 0 to 94% by weight of a second monomer unit derived from a radically polymerizable monomer other than the monomer unit of the general formula (A) wherein said second monomer unit contains radically polymerizable group, and (3) 1 to 20% by weight of a third monomer unit derived from a crosslinkable monomer wherein said third monomer unit contains at least two vinyl groups, said crosslinked polymer beads having a critical surface tension of 40 dyne/cm or less.