Sughrue, Mion, Zinn, Macpeak & Seas, PLLC
Pressure-sensitive adhesive label
 The present invention provides a novel pressure-sensitive adhesive label which curls little even under the coldest conditions and which has as a surface material a microporous stretched resin film obtained by stretching a crystalline polyolefin resin film containing an inorganic fine powder, a pressure-sensitive adhesive layer provided on one side of the surface material and a release paper provided on the pressure-sensitive adhesive layer, where the microporous stretched resin film satisfies the following physical properties (1) and (2): PA1 (1) the linear thermal expansion coefficient in a machine direction at -10.degree. C. (JIS K-7197) is from 10 to 70 .mu.m/m.multidot..degree.C.; and PA1 (2) the linear thermal expansion coefficient in the machine direction at 0.degree. C. is from 10 to 75 .mu.m/m.multidot..degree.C. 
Oji-Yuka Synthetic Paper Co., Ltd.
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Yasuo Takatoshi Akihiko
Iwasa Nishizawa Ohno