Low-e coating with high visible transmission

Details Low-e coating with high visible transmission Low-e coating with high visible transmission

2001-12-21

2004-12-14

Morris, Terrel (Department: 1771)

Stock material or miscellaneous articles

Composite

Of quartz or glass

C428S426000, C428S448000, C428S450000, C428S469000, C428S472000, C428S697000, C428S698000, C428S699000, C428S701000, C428S702000, C428S704000

Reexamination Certificate

active

06830817

ABSTRACT:

BACKGROUND AND SUMMARY OF THE INVENTION
The Ser. No. 09/794,224 application discloses coated articles having the following layer stack, as shown in
FIG. 1
herein, from the glass substrate outwardly:
TABLE 1
Example Materials/Thicknesses
Preferred
More
Layer
Range (Å)
Preferred (Å)
Example (Å)
Substrate (1-10 mm)
TiO
2
0-400 Å
 50-250 Å
100 Å
Si
x
N
y
0-400 Å
 50-250 Å
170 Å
NiCrO
x
5-100 Å
 10-50 Å
 18 Å
Ag
50-250 Å 
 80-120 Å
105 Å
NiCrO
x
5-100 Å
 10-50 Å
 16 Å
SnO
2
0-800 Å
500-850 Å
650 Å
Si
x
N
y
0-800 Å
 50-250 Å
170 Å
NiCrO
x
5-100 Å
 10-50 Å
 18 Å
Ag
50-250 Å 
 80-120 Å
105 Å
NiCrO
x
5-100 Å
 10-50 Å
 16 Å
SnO
2
0-500 Å
100-300 Å
150 Å
Si
3
N
4
0-500 Å
100-300 Å
250 Å
In other embodiments of U.S. Ser. No. 09/794,224, the bottom titanium oxide layer may be removed or replaced with a silicon nitride layer.
While the aforesaid coated articles described in the Ser. No. 09/794,224 application provide good color, and good ultraviolet (UV) and/or infrared (IR) reflection, increased visible transmission and/or reduced visible reflection would sometimes be desirable.
Neutral color is also desirable for coated articles in certain applications. Many conventional methods of making color of a coated article more neutral result in decreased visible transmission and/or increased visible reflection. Heretofore, it has been difficult to increase visible transmission and reduce visible reflection, while at the same time providing or maintaining rather neutral color and satisfactory solar control or thermal characteristics. Whether a color is “neutral” or not is subjective, and is a function of personal taste. However, generally speaking, color moving toward a neutral color target (e.g., a*=0, b*=0, or some other neutral color target such as transmissive a*=−2 and transmissive b*=−3.4) is desired, although such targets do not have to be met in all embodiments of this invention.
In view of the above, it is an object of certain embodiments of this invention to provide a solar controlling coated article (i.e., an article including at least one and preferably two or more layers such as Ag and/or Au for reflecting IR and/or UV) having increased visible transmission and/or reduced visible reflectance. In certain example non-limiting embodiments of this invention, it is an object to combine such high visible transmission and/or reduced visible reflection with neutral color of the coated article. Alternatively, the use of an improved anti-reflection layer(s) system(s) may enable coatings to have or utilize more robust contact layer(s) (e.g., thicker for better durability) and/or thicker silver (Ag) layer(s) (i.e., improved thermal performance) while maintaining similar transmission characteristics if increased transmission is not a most desired feature (e.g., if durability is a most desired feature).
Another object of this invention is to fulfill one or more of the above-listed objects and/or needs.


REFERENCES:
patent: 3682528 (1972-08-01), Apfel et al.
patent: 4229066 (1980-10-01), Rancourt et al.
patent: 4413877 (1983-11-01), Suzuki et al.
patent: 4716086 (1987-12-01), Gillery et al.
patent: 4799745 (1989-01-01), Meyer et al.
patent: 4898790 (1990-02-01), Finley
patent: 4965121 (1990-10-01), Young et al.
patent: 5071206 (1991-12-01), Hood et al.
patent: 5153054 (1992-10-01), Depauw et al.
patent: 5201926 (1993-04-01), Szczyrbowski et al.
patent: 5296302 (1994-03-01), O'Shaughnessy et al.
patent: 5302449 (1994-04-01), Eby et al.
patent: 5344718 (1994-09-01), Hartig et al.
patent: 5376455 (1994-12-01), Hartig et al.
patent: 5377045 (1994-12-01), Wolfe et al.
patent: 5521765 (1996-05-01), Wolfe
patent: 5557462 (1996-09-01), Hartig et al.
patent: 5563734 (1996-10-01), Wolfe et al.
patent: 5721054 (1998-02-01), Vandiest et al.
patent: 5770321 (1998-06-01), Hartig et al.
patent: 5800933 (1998-09-01), Hartig et al.
patent: 5834103 (1998-11-01), Bond et al.
patent: 5902505 (1999-05-01), Finley
patent: 5948131 (1999-09-01), Neuman
patent: 5948538 (1999-09-01), Brochot et al.
patent: 6045896 (2000-04-01), Boire et al.
patent: 6059909 (2000-05-01), Hartig et al.
patent: 6060178 (2000-05-01), Krisko
patent: 6132881 (2000-10-01), Hartig et al.
patent: 6231999 (2001-05-01), Krisko
patent: 6238781 (2001-05-01), Anderson et al.
patent: 6287675 (2001-09-01), Guiselin et al.
patent: 6306525 (2001-10-01), Schicht et al.
patent: 6340529 (2002-01-01), Ebisawa et al.
patent: 6355334 (2002-03-01), Rondeau et al.
patent: 6495251 (2002-12-01), Marietti et al.
patent: 2002/0021495 (2002-02-01), Lingle
patent: 42 11 363 (1993-10-01), None
patent: 197 32 978 (1998-11-01), None
patent: WO 98/58885 (1998-12-01), None
patent: WO/02 04375 (2002-01-01), None
U.S. patent application S.N. 09/997,245, filed Nov. 30, 2001 (copy attached).
U.S. patent application S.N. 09/995,800, filed Nov. 29, 2001 (copy attached).
U.S. patent app. S.N. 09/794,224, filed Jul., 2001.
Counterpart PCT Search Report dated Aug. 6, 2003.

Affiliated with

Also associated with

Rating

Low-e coating with high visible transmission does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low-e coating with high visible transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low-e coating with high visible transmission will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3318579