Electrochromic architectural window

Compositions – Light transmission modifying compositions – Modification caused by energy other than light

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

359275, G02F 100, G02F 1153

Patent

active

057258090

ABSTRACT:
A variable transmission electrochromic architectural window includes spaced optically transparent elements confining an electrochromic medium including a solvent and a redox chemical pair in solution such that the redox chemical pair colors under the application of voltage and bleaches in the absence of the applied voltage. An ultraviolet stabilizer is included in solution for enhanced ultraviolet stability. The window has an electrochromically active large area of length dimension at least about 14 cm and a width dimension at least about 14 cm while exhibiting a steady state leakage current of less than about 2.68 amperes per square meter when a potential of one volt is applied such that coloration uniformity of the electrochromic architectural window is enhanced. Preferably, the electrochromic medium is based on the use of solvents comprising at least about 25% 3-hydroxypropionitrile, 3,3'-oxydipropionitrile, 2-acetylbutyrolactone, 2-methylglutaronitrile, 3-methylsulfolane and mixtures thereof.

REFERENCES:
patent: 2633045 (1953-03-01), Sziklai
patent: 3280701 (1960-10-01), Donnelly et al.
patent: 3282157 (1966-11-01), Jones et al.
patent: 3282158 (1966-11-01), Jones et al.
patent: 3282160 (1966-11-01), Jones et al.
patent: 3283656 (1966-11-01), Jones et al.
patent: 3451741 (1969-06-01), Manos
patent: 3453038 (1969-07-01), Kissa et al.
patent: 3506229 (1974-04-01), Schoot et al.
patent: 3652149 (1972-03-01), Rogers
patent: 3692388 (1972-09-01), Hall, Jr. et al.
patent: 3774988 (1983-11-01), Rogers
patent: 3806229 (1974-04-01), Schoot et al.
patent: 3854794 (1974-12-01), Van Dam et al.
patent: 3873185 (1975-03-01), Rogers
patent: 3912368 (1975-10-01), Ponjee et al.
patent: 3951845 (1976-04-01), Cole, Jr.
patent: 4090782 (1978-05-01), Bredfeldt et al.
patent: 4093358 (1978-06-01), Shattuck et al.
patent: 4139276 (1979-02-01), Clecak et al.
patent: 4210390 (1980-07-01), Yaguchi
patent: 4309082 (1982-01-01), Kohara et al.
patent: 4561001 (1985-12-01), Gunn et al.
patent: 4684219 (1987-08-01), Cox et al.
patent: 4752119 (1988-06-01), Ueno et al.
patent: 4795242 (1989-01-01), WudlFred et al.
patent: 4820025 (1989-04-01), Nakanowatari
patent: 4893908 (1990-01-01), Wolf et al.
patent: 4902108 (1990-02-01), Byker
patent: 5073012 (1991-12-01), Lynam
patent: 5140455 (1992-08-01), Varaprasad et al.
patent: 5151816 (1992-09-01), Varaprasad et al.
patent: 5280380 (1994-01-01), Byker
patent: 5294376 (1994-03-01), Byker
patent: 5336448 (1994-08-01), Byker
patent: 5340503 (1994-08-01), Varaprasad et al.
patent: 5355245 (1994-10-01), Lynam
Abstract of Japanese Patent 59-077,415 (May 2, 1984).
Kaufman, "New Organic Materials for Use as Transducers in Electrochromic Display Devices", Conference Record of 1978 Biennial Display Research Conference, Oct. 24-26, 1978 discloses viologens in combination with tetrathiafulvalene in aqueous solution.
Shelepin et al., "Electrochromism of Organic Compounds II, Spectral and Electrochemical Examination of a System Based on Methylviologen and 5,10-Demethylphenazine," Elektrokimiya, vol. 13(3), 404-408 (Mar. 1977).
Ushakov et al. U.S. Hakov: "Electrochromism of Organic Compounds: Some Properties of Two-Electrode Cells," Elektrokimiya, vol. 14(2), 319-322 (Feb. 1978).
Hirai et al., "Electrochromism for Organic Materials in Polymeric All-Solid-State Systems," Appl. Phys. Lett., 43,(7), 704 (1983).
Hirai et al, "Electrochromism for Organic Materials in Polymeric All-Solid-State Systems," Appl. Phys. Lett., 43, (7), 704 1983.
Kaufman "New Organic Materials for Use as Transducers in Electrochromic Display Devices," Conference Record of 1978 Biennial Display Research Conference, Oct. 24-26, 1978.
Abstract of Japanese Patent 59077415 (May 2, 1984).
Kaufman, "New Organic Materials for Use as Transducers in Electrochromic Display Devices", Conference Record of 1978 Biennial Display Research Conference, Oct. 24-26, 1978 discloses viologens in combination with tetrathiafulvalene in aqueous solution.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Electrochromic architectural window does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrochromic architectural window, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrochromic architectural window will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-136805

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.