Oblon, Fisher, Spivak, McClelland, & Maier
Polypropylene resin composition and biaxially stretched film thereof
 Disclosed herein are a polypropylene resin composition comprising 100 parts by weight of propylene homopolymer showing a stereoregularity of a boiling heptane-insoluble part thereof of not less than 0.960 as an isotactic pentad rate obtained by .sup.13 C-NMR and 0.01 to 2 parts by weight of a hydrocarbon polymer having completely or partially saturated main hydrocarbon chain and at least one hydroxy group at an end of the main hydrocarbon chain, and a biaxially stretched film comprising the polypropylene resin composition. 
Mitsubishi Chemical Industries Limited
Y C C Y C C Y
Y10S C08L C08L Y10S C08J C08J Y10S
additional inventional additional additional additional inventional additional
Kiyoshi Yoshinao Toshio Yoshio
Fukuda Shinohara Fujii Matsumoto