- Patent Number:
11453,755
- Appl. No:
16/977747
- Application Filed:
February 21, 2020
- نبذة مختصرة :
Disclosed are an environment-friendly heat shielding film using a non-radioactive stable isotope and a manufacturing method therefor and, more specifically, an environment-friendly heat shielding film using a non-radioactive stable isotope and a manufacturing method therefor, wherein a heat shielding layer is formed on one surface of a substrate layer; the heat shielding layer is composed of stable isotopes as elements constituting a precursor and contains a non-radioactive stable isotope tungsten bronze compound having an oxygen-deficient (Y)Ax(182,183,184,186)W1O(3-n) type hexagonal structure, thereby preventing the generation of radioactive materials, fundamentally blocking haze, and improving the visible light transmittance and the infrared light blocking rate; and the heat resistance and durability problems that may occur when the heat shielding layer is formed of the non-radioactive stable isotope tungsten bronze compound are solved by a passivation film.
- Inventors:
Hwang, Tai-Gyeong (Busan, KR)
- Claim:
1. An environment-friendly heat shielding film using a non-radioactive stable isotope, the environmental-friendly heat shielding film comprising: a substrate layer; and a heat shielding layer formed on one surface of the substrate layer, the heat shielding layer containing a non-radioactive stable isotope tungsten bronze compound being deficient in oxygen, the heat shielding layer comprising a passivation film containing an organic acid metal chelate compound for improving heat resistance and durability of the oxygen-deficient non-radioactive stable isotope tungsten bronze compound; the non-radioactive stable isotope tungsten bronze compound forming a (Y) A x (182,183,184,186) W 1 O (3-n) , wherein the (Y) A is a non-radioactive stable isotope; the X is the number of elements doped to the (Y) A according to reduction calcination; the Y is a mass number of A; the (3-n) is lack of oxygen; and the (Y)A is a non-radioactive alkali metal element or a non-radioactive alkali earth metal element, wherein the organic acid metal chelate compound has a structure of R1-M-R2 in which M is any one element of Cu, Ag, Zn, Ni, W, and Co; and R1 and R2 each are any one of glutamic acid and sodium polyaspartate.
- Claim:
2. The environmental-friendly heat shielding film of claim 1 , wherein the non-radioactive stable isotope tungsten bronze compound includes hexagonal structure.
- Claim:
3. The environmental-friendly heat shielding film of claim 1 , wherein the (Y) A is any one of (23) Na, (39,41) K, (85) Rb, (133) Cs, (24,25,26) Mg, and (42,43,44) Ca.
- Claim:
4. The environmental-friendly heat shielding film of claim 1 , wherein the non-radioactive stable isotope tungsten bronze compound is formed in an amorphous form by calcining a non-radioactive stable isotope tungsten bronze hydrate in the range of 300-600° C. to remove hydroxyl groups and water molecules.
- Claim:
5. The environmental-friendly heat shielding film of claim 4 , wherein, after the calcining, the non-radioactive stable isotope tungsten bronze compound forms an oxygen-deficient (Y) A x (182,183,184,186) W 1 O (3-n) type hexagonal structure by reduction firing through the introduction of an inert gas.
- Claim:
6. The environmental-friendly heat shielding film of claim 5 , wherein the inert gas includes at least one of N 2 , Ar, Ne, and CO 3 .
- Claim:
7. The environmental-friendly heat shielding film of claim 1 , wherein the substrate layer is formed of polyethylene terephthalate.
- Claim:
8. An environment-friendly heat shielding film using a non-radioactive stable isotope, the environmental-friendly heat shielding film comprising: a substrate layer; a heat shielding layer formed on one surface of the substrate layer, wherein the heat shielding layer contains a non-radioactive stable isotope tungsten bronze compound; and a passivation film containing an organic acid chelate compound, wherein the organic acid metal chelate compound has a structure of R1-M-R2 in which M is any one element of Cu, Ag, Zn, Ni, W, and Co; and R1 and R2 each are any one of glutamic acid and sodium polyaspartate.
- Patent References Cited:
3505108 April 1970 Mochel
2006/0178254 August 2006 Takeda
2021/0047518 February 2021 Tsunematsu
H08-073223 March 1996
2006-299086 November 2006
2009-271515 November 2009
10-2010-0031004 March 2010
10-2012-0107060 September 2012
10-2036253 October 2019
- Other References:
Commission on Isotopic Abundances and Atomic Weights, Caesium, found at https://ciaaw.org/caesium.htm (2015). cited by examiner
Commission on Isotopic Abundances and Atomic Weights, Tungsten, found at https://ciaaw.org/tungsten.htm (2015). cited by examiner
International Search Report dated Jun. 9, 2020, issued in PCT/KR2020/002569, filed Feb. 21, 2020. cited by applicant
Written Opinion dated Jun. 9, 2020, issued in PCT/KR2020/002569, filed Feb. 21, 2020. cited by applicant
Distribution of Radioactivities of 226, 228 Ra, 137 Cs and 40 K in Soil in Busan Area, The Korean Association for Radiation Protection, vol. 26 No. 4: 441-445 (2001). cited by applicant
The Effect of Natural Radioactive Elements in the Soil and Ground Water toward Human Beings, Appl Sci Uni J. vol. 5 No. 1 Jan. 2021. cited by applicant
International Union of Pure and Applied Chemistry, Commission on isotopic abundances and atomic weights: Frequent questions, https://www.ciaaw.org, accessed at least as early as Sep. 24, 2021. cited by applicant
International Union of Pure and Applied Chemistry, Commission on isotopic abundances and atomic weights: Natural Variations of Isotopic Abundances, https://www.ciaaw.org, accessed at least as early as Sep. 24, 2021. cited by applicant
International Union of Pure and Applied Chemistry, Commission on isotopic abundances and atomic weights: Isotopic Abundances, https://www.ciaaw.org, accessed at least as early as Sep. 24, 2021. cited by applicant
Burger et al. “Stable and radioactive cesium: A review about distribution in the environment, uptake and translocation in plants, plant reactions and plants' potential for bioremediation”, Sci Total Environ (2017), https://doi.org/10.1016/j.scitotenv.2017.09.298. cited by applicant
Lourenço et al. “Rehabilitation of Radioactively Contaminated Soil: Use of Bioremediation/Phytoremediation Techniques”, Springer International Publishing AG, part of Springer Nature 2019 D. K. Gupta, A. Voronina (eds.), Remediation Measures for Radioactively Contaminated Areas, https://doi.org/10.1007/978-3-319-73398-2_8. cited by applicant
Zhang et al. “Determination of the isotopic composition of tungsten using MC-ICPMS”, Elsevier B.V.(2019), https://doi.org/10.1016/j.aca.2019.08.029. cited by applicant
Gad et al. “Cesium”, Encyclopedia of Toxicology, vol. 1, Elsevier Inc. (2014), http://dx.doi.org/10.1016/B978-0-12-386454-3.00827-7. cited by applicant
- Primary Examiner:
Brooks, Kregg T
- Attorney, Agent or Firm:
Workman Nydegger
- الرقم المعرف:
edspgr.11453755
Processing Request
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