Encapsulated composit fibrous aerogel spacer assembly
First Claim
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1. A structure which comprises:
- at least two glass sheets;
a spacer positioned and bonded between two of said at least two glass sheets about the perimeter of said at least two glass sheets, said spacer including a first contact surface, a second contact surface and a front surface facing into the space between said at least two glass sheets, said first contact surface, said second contact surface and said front surface each including a first cladding material, and said first contact surface and said second contact surface contacting, respectively, a different one of said at least two glass sheets;
the spacer further comprising;
an aerogel forming a cross section with at least four surfaces including the first contact surface, the second contact surface, and the front surface;
one or more coatings of material on the at least four surfaces of said aerogel suitable for allowing the spacer to be formed to exact dimensions;
a first sealant forming a vapor and gas barrier on a surface of said spacer facing away from said front surface; and
a second sealant overlying said first sealant and of a different material than said first sealant;
whereinthe first sealant and the second sealant are placed around the outer perimeter of the structure.
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Abstract
An insulating spacer for creating a thermally insulating bridge between spaced apart panes of a multiple pane window unit comprises in one embodiment, a solid fiber-stabilized aerogel insulation material, hardened with a desiccant-impregnated hot melt adhesive. The spacer defines a thermally insulated space between the panes. Several embodiments of the insulating spacer of the present invention are disclosed. Insulated glass units using the disclosed insulating spacers and windows employing these insulated glass units have significantly better thermal performance than prior art insulated glass units and windows.
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Citations
28 Claims
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1. A structure which comprises:
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at least two glass sheets; a spacer positioned and bonded between two of said at least two glass sheets about the perimeter of said at least two glass sheets, said spacer including a first contact surface, a second contact surface and a front surface facing into the space between said at least two glass sheets, said first contact surface, said second contact surface and said front surface each including a first cladding material, and said first contact surface and said second contact surface contacting, respectively, a different one of said at least two glass sheets;
the spacer further comprising;an aerogel forming a cross section with at least four surfaces including the first contact surface, the second contact surface, and the front surface; one or more coatings of material on the at least four surfaces of said aerogel suitable for allowing the spacer to be formed to exact dimensions; a first sealant forming a vapor and gas barrier on a surface of said spacer facing away from said front surface; and a second sealant overlying said first sealant and of a different material than said first sealant;
whereinthe first sealant and the second sealant are placed around the outer perimeter of the structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A structure which comprises:
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at least two glass sheets; an intermediate structure between said two glass sheets, said intermediate structure comprising two high thermal performance sheets separated by a spacer, said intermediate structure being separated from said two glass sheets by a first spacer and a second spacer around the peripheries of said intermediate structure and said two glass sheets, each of said first and second spacer separating said intermediate structure from a corresponding one of said two glass sheets;
further whereinat least one of the first spacer, the second spacer, and the spacer separating the two high thermal performance sheets are made of an aerogel forming a cross section with at least four surfaces, the spacer having at least one additional structural element to stiffen said aerogel and one or more coatings of material on the at least four surfaces of said aerogel suitable for allowing the spacer to be formed to exact dimensions; and a first sealant forming a vapor and gas barrier on a surface of the first spacer, the second spacer, and the spacer separating the two high thermal performance sheets; and a second sealant overlying said first sealant and of a different material than said first sealant;
whereinthe first sealant and the second sealant are placed around the outer perimeter of the structure. - View Dependent Claims (13, 14, 15)
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16. A spacer for separating two panes of glass in a window thereby to decrease the heat transfer through the window, said spacer comprising:
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an aerogel forming a cross section with at least four surfaces; and one or more coatings of material on the at least four surfaces of said aerogel suitable for allowing the spacer to be formed to exact dimensions; a first contact surface formed by the one or more coatings on one of the at least four surfaces, a second contact surface formed by the one or more coatings on one of the at least four surfaces, and a front surface formed by the one or more coatings on one of the at least four surfaces; a first sealant forming a vapor and gas barrier on a surface of said spacer facing away from said front surface; and a second sealant overlying said first sealant and of a different material than said first sealant;
whereinthe first sealant and the second sealant are placed around the outer perimeter of the spacer and the two panes of windows. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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17. The spacer of 16 wherein the aerogel, the cross section with at least four surfaces, and the one or more coatings are selected to reduce a U-factor in the window by at least 25%.
Specification