LOW-GLOSS BIAXIALLY ORIENTED FILMS COMPRISING VINYL AROMATIC POLYMERS AND SUBSTANTIALLY NON-SPHERICAL RUBBER PARTICLES

摘要

A low-gloss biaxially oriented polymer film containing a vinyl aromatic polymer and substantially non-spherical rubber particles is useful for window film applications. The rubber particles, when unconstrained, are essentially spherical and have a rubber particle size of 2.5 micrometers or more.