Title:
PRODUCTION OF OPTICAL ELEMENT
Document Type and Number:
Japanese Patent JP3936434
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To produce an optical film having higher compensation performance than the conventional one at a low cost by using a film of inexpensive triacetylcellulose or saponified triacetylcellulose excellent in optical performance as a substrate, orienting and fixing a liq. crystalline polymer on the substrate without degenerating the substrate.
SOLUTION: A substrate with a layer of triacetylcellulose and/or saponified triacetylcellulose on at least one surface is prepd., the surface of the layer is directly rubbed and a liq. crystalline polymer layer is oriented and fixed on the surface of the substrate by applying a soln. of the liq. crystalline polymer in 2,6-dimethyl-4-heptanone and/or 4-heptanone to the rubbed surface and drying it.
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Inventors:
Itoshi Ishimaru
Takao Saito
Takao Saito
Application Number:
JP18098297A
Publication Date:
June 27, 2007
Filing Date:
July 07, 1997
Export Citation:
Assignee:
Sekisui Chemical Co.,Ltd.
International Classes:
G02B5/30; B29D11/00; G02F1/1337; B29K1/00; (IPC1-7): G02B5/30; B29D11/00; G02F1/1337; //B29K1:00
Domestic Patent References:
| JP8094838A | ||||
| JP8176245A | ||||
| JP9230143A |