Oriented polyester film

Details Oriented polyester film Oriented polyester film

1987-01-23

1988-10-18

Herbert, Thomas J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

428323, 428333, 428409, 428480, 428900, 523220, 528286, B32B 516, B32B 2736, D06N 704

Patent

active

047787082

ABSTRACT:
An oriented polyester film having at least one surface being roughened by containing inactive particles and three-dimensional surface roughness exponents of the said roughened surface are within ranges simultaneously satisfying the following relationships (I) to (III), while the number of coarse projections is in excess of the fourth grade:

REFERENCES:
patent: 3980611 (1976-09-01), Anderson et al.
patent: 4067855 (1978-01-01), Miwa et al.
patent: 4725472 (1988-02-01), Okabe et al.

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