Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Patent
1994-08-29
1996-07-02
Buffalow, Edith
Stock material or miscellaneous articles
Structurally defined web or sheet
Including components having same physical characteristic in...
428323, 428328, 428480, 428483, 428910, 428694, B32B 702
Patent
active
055320473
ABSTRACT:
Disclosed is a biaxially oriented, laminated polyester film having a lamination structure with at least two layers. At least one of the outermost layers of the film is a thin laminated layer A having a thickness of not more than 3 .mu.m. In the layer A, internally formed particles and specified agglomerated particles or mono-dispersed particles are present, or the mono-dispersed particles are present at a very small content. When the polyester film is used as a base film for magnetic recording media, the abrasion resistance of the film surface at a high speed can be greatly increased.
REFERENCES:
patent: 5069962 (1991-12-01), Okazaki et al.
patent: 5284699 (1994-02-01), Nishino et al.
patent: 5336079 (1994-08-01), Okazaki et al.
Abe Koichi
Miyake Tohru
Ohshima Keisuke
Okazaki Iwao
Buffalow Edith
Miller Austin R.
Toray Industries Inc.
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