Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2006-01-31
2011-10-04
Harlan, Robert D. (Department: 1762)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C428S339000, C428S332000, C428S292100, C451S041000
Reexamination Certificate
active
08030375
ABSTRACT:
Disclosed is a highly transparent fiber-reinforced composite material including an assembly of cellulose fibers of 4 to 200 nm average fiber diameter impregnated with a matrix material so as to not only remedy the moisture absorbency attributed to cellulose fibers but also further improve transparency. There is provided a fiber-reinforced composite material including an assembly of cellulose fibers impregnated with a matrix material. In the fiber-reinforced composite material, hydroxyl groups of cellulose fibers are chemically modified through a reaction with one or more chemical modifiers selected from the group consisting of an acid, an alcohol, a halogenating reagent, an acid anhydride, and an isocyanate so that the ratio of a functional group introduced by the chemical modification is 5 to 40 percent by mole based on the hydroxyl groups of cellulose fibers before the chemical modification. The chemical modification of hydroxyl groups of cellulose fibers can reduce the hydrophilicity of cellulose fibers to thereby reduce the moisture absorbency of fiber-reinforced composite material. Further, the affinity between cellulose fibers and matrix material can be enhanced to thereby further improve transparency.
REFERENCES:
patent: 4198968 (1980-04-01), Kalberer et al.
patent: 5143791 (1992-09-01), Flodin et al.
patent: 5981067 (1999-11-01), Seethamraju et al.
patent: 6117545 (2000-09-01), Cavaille et al.
patent: 2005/0067730 (2005-03-01), Yano et al.
patent: 2006/0182941 (2006-08-01), Yano et al.
patent: 1200128 (1998-11-01), None
patent: 61-502968 (1986-12-01), None
patent: 62-36467 (1987-02-01), None
patent: 7-156279 (1995-06-01), None
patent: 8-49188 (1996-02-01), None
patent: 9-207234 (1997-08-01), None
patent: 11-513425 (1999-11-01), None
patent: 2005-60680 (2005-03-01), None
patent: WO 90/03411 (1990-04-01), None
patent: WO 93/10172 (1993-05-01), None
Hiroyuki Yano, et al., “Organic EL display prepared from Nata de coco”, Foundation Bioindustry Society, vol. 63, No. 11, Nov. 1, 2005, pp. 720-721.
S. Iwamato, et al. “Optically transparent composites reinforced with plant fiber-based nanofibers” Applied Physics A Materials Science & Processing. Jul. 7, 2005, pp. 1-4.
Masaya Nogi, et al. “Optically transparent bionanofiber composites with low sensitivity to refractive index of the polymer matrix” American Intitute of Physics, Applied Physics Letters 87, 1, 2005, pp. 1-3.
Masaya Nogi, et al. “Property enhancement of optically transparent bionanofiber composites by acetylation” American Institute of Physics, Applied Physics Letters 89, 233123 (2006), pp. 1-3.
Hiroyuki Yano, et al. “Composite Material Using Bionanofiber Various Uses Available by Making Full Use of High Strength, Low Linear Thermal Expansion and Transparencey” Vegetable-Origin Plastics Expectation and Problems as Ace of Environmental Preservation Materials, pp. 40-43 & 1-6 (with English Translation), (2006).
Kazuo Kitagawa Development of High-Vegetality Composite Material Using Bamboo Fibers (Micro and Nanofibers) Vegetable-Origin Plastics Expectation and Problems as Ace of Environmental Preservation materials, pp. 66-69 and 1-6 (with English Translation), (2006).
Supplementary European Search Report dated Jun. 7, 2011, in EP 06712665 filed on Jan. 31, 2006.
Ifuku Shinsuke
Nakatsubo Fumiaki
Nogi Masaya
Yano Hiroyuki
Harlan Robert D.
Mitsubishi Chemical Corporation
Nippon Telegraph and Telephone Corporation
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Pioneer Corporation
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