US2022018178A1PendingUtilityA1

Insulating glass unit with desiccant material, and/or associated methods

67
Assignee: GUARDIAN GLASS LLCPriority: Jul 15, 2020Filed: Jul 14, 2021Published: Jan 20, 2022
Est. expiryJul 15, 2040(~14 yrs left)· nominal 20-yr term from priority
Inventors:David J. CooperDuane O. ReckerJohn Matuszewski
B01J 20/046E06B 3/66361B32B 17/10779B01J 20/28026B32B 2255/10B32B 2307/204B32B 2509/10E06B 9/264B32B 2255/20E06B 9/24B32B 2605/006E06B 2009/2464E06B 2009/2643B32B 7/12B32B 2307/202B32B 17/10018B32B 2419/00E06B 3/677E06B 3/6722E06B 3/66376
67
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Claims

Abstract

Certain example embodiments relate to an insulating glass (IG) unit. A spacer system is interposed between first and second substrates. The spacer system helps to maintain the first and second substrates in substantially parallel spaced apart relation to one another, and to define a cavity between the first and second substrates. A desiccant material is located in a body of the spacer system, with the desiccant material comprising a desiccant matrix and a molecular sieve replacement material formed for adsorption at a relative humidity of 10-20%. The molecular sieve replacement material may be a salt or other material (such as, for example, MgCl2, CaCl2, CaO, MgSO4, and/or the like). The cavity may be primarily filled with an inert gas (such as Ar, Kr, Xe, or the like) or a reactive gas (such as CO2). An electrostatically-driven dynamic shade may be provided in the cavity.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . An insulating glass (IG) unit, comprising:
 first and second substrates;   a spacer system interposed between the first and second substrates, the spacer system helping to maintain the first and second substrates in substantially parallel spaced apart relation to one another and to define a cavity between the first and second substrates; and   a desiccant material comprising a desiccant matrix and a molecular sieve replacement material formed for adsorption at a relative humidity of 10-20%, the desiccant material being located in a body of the spacer system.   
     
     
         2 . The IG unit of  claim 1 , wherein the desiccant material further comprises a molecular sieve different from the molecular sieve replacement material. 
     
     
         3 . The IG unit of  claim 1 , wherein the molecular sieve replacement material comprises 5-25% of the desiccant material or amounts to 5-25% of the other desiccant material. 
     
     
         4 . The IG unit of  claim 3 , wherein the molecular sieve replacement material comprises 10-20% of the desiccant material or amounts to 10-20% of the other desiccant material. 
     
     
         5 . The IG unit of  claim 1 , wherein the molecular sieve replacement material comprises a salt. 
     
     
         6 . The IG unit of  claim 1 , wherein the molecular sieve replacement material comprises MgCl 2  and/or CaCl 2 . 
     
     
         7 . The IG unit of  claim 1 , wherein the cavity is at least partially filled with an inert gas. 
     
     
         8 . The IG unit of  claim 7 , wherein the inert gas is argon. 
     
     
         9 . The IG unit of  claim 7 , wherein up to 90% of the cavity is filled with the inert gas. 
     
     
         10 . The IG unit of  claim 1 , wherein the cavity is at least partially filled with a reactive gas. 
     
     
         11 . The IG unit of  claim 10 , wherein the cavity is at least partially filled with CO 2 . 
     
     
         12 . The IG unit of  claim 10 , wherein the cavity is at least initially completely filled with the reactive gas. 
     
     
         13 . The IG unit of  claim 10 , further comprising an electrically-powered device embedded in the cavity. 
     
     
         14 . The IG unit of  claim 13 , wherein the electrically-powered device is a lighting element or an Internet-of-Things device. 
     
     
         15 . A method of making an insulating glass (IG) unit, the method comprising:
 having first and second substrates; and   connecting together the first and second substrates in connection with a spacer system interposed between the first and second substrates, the spacer system helping to maintain the first and second substrates in substantially parallel spaced apart relation to one another and to define a cavity between the first and second substrates;   wherein a desiccant material is provided in a body of the spacer system, the desiccant material comprising a salt and lacking a molecular sieve.   
     
     
         16 . The method of  claim 15 , wherein the desiccant material further comprises a desiccant matrix containing the salt. 
     
     
         17 . The method of  claim 16 , wherein the desiccant matrix is polymer based. 
     
     
         18 . The method of  claim 15 , wherein the molecular sieve replacement material comprises MgCl 2  and/or CaCl 2 . 
     
     
         19 . The method of  claim 15 , wherein the molecular sieve replacement material comprises CaCl 2    
     
     
         20 . The method of  claim 15 , wherein the cavity is at least partially filled with an inert gas. 
     
     
         21 . The method of  claim 15 , wherein the cavity is at least initially completely filled with the inert gas. 
     
     
         22 . The method of  claim 15 , wherein the cavity is at least partially filled with a reactive gas. 
     
     
         23 . The method of  claim 22 , wherein the cavity is at least partially filled with CO 2 . 
     
     
         24 . The method of  claim 22 , wherein up to 90% of the cavity is filled with the reactive gas. 
     
     
         25 . The method of  claim 22 , wherein an electrically-powered device is embedded in the cavity. 
     
     
         26 . The method of  claim 15 , wherein the desiccant material is extruded or injected into the body of the spacer system. 
     
     
         27 . The method of  claim 15 , wherein the desiccant material is provided to the body of the spacer system as the spacer system is being formed. 
     
     
         28 . The method of  claim 15 , wherein the desiccant material is provided to the body of the spacer system as the first and second substrates are being secured to one another. 
     
     
         29 . A desiccant material comprising a molecular sieve replacement material formed for adsorption at a relative humidity of 10-20%, the desiccant material being locatable in a body of the spacer system, the molecular sieve replacement material comprising a salt, the desiccant material lacking a molecular sieve. 
     
     
         30 . The desiccant material of  claim 29 , wherein the molecular sieve replacement material comprises 5-25% of the desiccant material or amounts to 5-25% of the other desiccant material. 
     
     
         31 . The desiccant material of  claim 29 , wherein the molecular sieve replacement material comprises MgCl 2  and/or CaCl 2 . 
     
     
         32 . The desiccant material of  claim 29 , wherein the molecular sieve replacement material is non-reactive with CO 2 . 
     
     
         33 . The desiccant material of  claim 29 , being extrudable into a body of a spacer system for an insulating glass unit. 
     
     
         34 . The desiccant material of  claim 29 , further comprising a matrix material. 
     
     
         35 . The desiccant material of  claim 34 , wherein the matrix material is polymer based.

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