Continuous sheet having optical functions

Details Continuous sheet having optical functions Continuous sheet having optical functions

1997-10-08

1999-03-23

Vargot, Mathieu D.

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Light polarizing article or holographic article

264 134, 264 16, B29D 1100

Patent

active

058854908

ABSTRACT:
A continuous sheet having an optical function imparted thereto, which is obtained by extruding a thermoplastic resin on a three-dimensional pattern side of a continuous release sheet having a three-dimensional pattern in its surface to shus transfer said pattern to a surface of said thermoplastic resin, simultaneously contacting the other side of said thermoplastic resin with a cooling roll having an uneven pattern or a mirror surface to thus transfer said pattern or mirror surface to a surface of said thermoplastic resin in contact with said cooling roll, and separating by peeling said release sheet from said thermoplastic resin after cooling. The continuous sheet is free of a streak and scratch and freely cuttable in any desired size and form.

REFERENCES:
patent: 3146492 (1964-09-01), Lemelson
patent: 4206969 (1980-06-01), Cobb et al.
patent: 4332847 (1982-06-01), Rowland
patent: 4478769 (1984-10-01), Pricone et al.
patent: 4486363 (1984-12-01), Pricone et al.
patent: 4601861 (1986-07-01), Pricone et al.
patent: 5512219 (1996-04-01), Rowland et al.

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