公开(公告)号：WO1991003810A1

公开(公告)日：1991-03-21

申请号：PCT/JP1990001104

申请日：1990-08-30

Applicant: IDEMITSU KOSAN CO., LTD. ,  FUNAKI, Keisuke ,  OHKI, Yuichi

Inventor： IDEMITSU KOSAN CO., LTD.

IPC: G11B05/704

CPC classification number: G11B5/73 ,  Y10S428/90 ,  Y10T428/24355 ,  Y10T428/31913

Abstract: A magnetic recording medium consisting of a stretched film of a styrene polymer having a highly syndiotactic structure or a composition thereof, or of a laminated film including said stretched film, and wherein a magnetic layer is applied to at least one surface of the base film that has a coefficient of linear expansion of smaller than 5 x 10 / DEG C and a static frictional coefficient of greater than 0.3 but smaller than 1.0. The magnetic recording medium exhibits good slipping property, smoothness, heat resistance and humidity resistance, as well as excellent dimensional stability against the temperature and humidity, and exhibits good coerciveness and high density.

Abstract translation: 一种由具有高间同立构结构的苯乙烯聚合物的拉伸膜或其组合物构成的磁记录介质或包括所述拉伸膜的层压膜，并且其中将磁性层施加到基膜的至少一个表面上， 线性膨胀系数小于5×10 -5 /℃，静摩擦系数大于0.3但小于1.0。 磁记录介质具有良好的滑动性，平滑性，耐热性和耐湿性，以及对温度和湿度的优异的尺寸稳定性，并且表现出良好的矫顽力和高密度。

公开(公告)号：WO1986002766A1

公开(公告)日：1986-05-09

申请号：PCT/US1985001958

申请日：1985-10-09

Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

Inventor： MINNESOTA MINING AND MANUFACTURING COMPANY ,  BILKADI, Zayn ,  HENDRICKSON, William, A.

IPC: G11B05/704

CPC classification number: C23C14/022 ,  B05D3/0446 ,  B29C59/14 ,  G11B5/735 ,  G11B5/8404 ,  Y10T428/24355 ,  Y10T428/24471

Abstract: A reduced friction composite sheet construction comprises a semicrystalline polymeric sheet support having a first and second surface, said surfaces having in the range of 5 to 99 percent crystalline polymeric material and 1 to 95 percent amorphous polymeric material, said first surface having been subjected to sputter-etching which preferentially ablates said amorphous material compared to said crystalline material so as to provide on said first surface ridges or needles of amplitude in the range of 0.01 to 5.0 micrometers, and a separation at their apexes in the range of 0.01 to 1.0 micrometers and having an aspect ratio in the range of 0.5 to 7, said first surface having at least one of static and dynamic coefficients of friction in the range of 0.01 to 0.7, and at least one functional layer coated on said second surface of said support.