Transparent heat-resistant resin optical material and film

Details Transparent heat-resistant resin optical material and film Transparent heat-resistant resin optical material and film

2006-02-21

2006-02-21

Pezzuto, Helen L. (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S262000, C526S348200, C526S348600, C526S348800, C264S001310, C264S001340, C264S479000, C264S901000

Reexamination Certificate

active

07001967

ABSTRACT:
A transparent heat-resistant resin optical materials having excellent heat resistance and dynamic characteristics, having negative birefringence and exhibiting a high refractive index and a high Abbe number, especially optical compensating members such as films, sheets and retardation films for LCD display element. The transparent heat-resistant resin optical material is made of a copolymer containing a specific olefin residue unit and a specific N-phenyl-substituted maleimide residue unit and having a weight average molecular weight, as reduced into standard polystyrene, of from 5×103to 5×106, the transparent heat-resistant resin optical material exhibiting negative birefringence; and a retardation film having a relationship of three-dimensional refractive indexes of nz≧ny>nx, nz>ny≧nx, or nz>nx≧ny.

REFERENCES:
patent: 3352832 (1967-11-01), Barr et al.
patent: 4605700 (1986-08-01), Le-Khac
patent: 5344916 (1994-09-01), Harris et al.
patent: 0 463 612 (1992-01-01), None
patent: 1 160 591 (2001-12-01), None
patent: 1066715 (1967-04-01), None
patent: 5-117334 (1993-05-01), None
patent: 2000-162436 (2000-06-01), None
patent: 2000-304924 (2000-11-01), None
patent: 2000-304925 (2000-11-01), None
patent: 2000-329939 (2000-11-01), None
patent: 2002-71956 (2002-03-01), None
patent: WO 97/30119 (1997-08-01), None
patent: WO 03/100480 (2003-12-01), None
Junji Furukawa, et al., “Anisotropy of Styrene- Butadiene Rubber”, Journal of Applied Polymer Science, vol. 13, 1969, pp. 2541-2546.
Prof. Dr. rer.nat.habil. Hans-Joachim Lorkowski, “Polymere mit speziellen optischen Eigenschaften”, Plaste Und Kautschuk, vol. 29, 1982, pp. 618-621.
Takashi Inoue, et al., “Kino Zairyo (Functional Materials)”, Material Report R & D, Mar. 1987, pp. 21-29.
Yoshiyuki Nishio, et al., “Molecular orientation and optical anisotrophy induced by the stretching of poly (vinyl alcohol)/poly (N-vinyl pyrrolidone) blends” Polymer, vol. 35, No. 7, 1994, pp. 1452-1461.
T. Okinaka, et al., “Effect of Molecular Structure on the Optical Stress Coefficient of Optical Plastics”, Polymer Preprints, Japan, vol. 39, No. 10, 1990, pp. 3824-3826.
Kobunshi no Kotai Kozo (Solid Structure of Polymers ) II, pp. 388-399.
Hiroshi Awaya, Primer of Polarization Microscope of Polymer Materials, Chapter 5, pp. 75-97 and 264.
Partial English translation of JP 5-117334 (translation filed Jun. 24, 2004).

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