| 摘要 |
<p>Excellent impact modifiers for vinyl chloride resins, which are copolymers prepared by polymerizing 10 to 70 wt% of a monomer component comprising 60 to 100 wt% of at least one vinyl monomer selected from the group consisting of (meth)acrylic esters, aromatic vinyl compounds, vinyl cyanide and vinyl chloride and 0 to 40 wt% of other copolymerizable monomer in the presence of 30 to 90 wt% of hollow rubber particles which exhibit a glass transition temperature (Tg) of 0 °C or below and a void content of 3 to 90 vol% as determined in the state of a latex and contain a crosslinking agent in an amount of 0.1 to 5 parts by weight per 100 parts by weight of the whole of the constituent monomers of the rubber.</p> |
