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Glass strut delivery film for vacuum glazing and method for insulating glass units

A pillar, delivery technology for chemical instruments and methods, window/door improvements, glass/slag layered products, etc.

Inactive Publication Date: 2019-05-07
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Efficient and cost-effective manufacture of vacuum insulated glass units can present challenges, particularly the selection of suitable struts, placement of struts, and sealing the glass pane to the vacuum gap

Method used

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  • Glass strut delivery film for vacuum glazing and method for insulating glass units
  • Glass strut delivery film for vacuum glazing and method for insulating glass units
  • Glass strut delivery film for vacuum glazing and method for insulating glass units

Examples

Experimental program
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example

[0059]

example 1

[0060] Example 1: Duplicate Mold of Sacrificial Material .

[0061] Coating solutions were prepared by dissolving sufficient QPAC 40 in 1,3-dioxolane to yield a final wt% QPAC 40 of 30%. The coating solution was hand coated onto the back of a 0.051 mm (0.002 inch) thick T50 silicone release liner in a notch bar coater. Approximately 50 milliliters of coating solution was applied to the rear of the T50 and pulled through a notch bar coater with a gap of 0.24 inches. The coating was allowed to dry at ambient for 1 hour.

[0062]The coated film was placed face up on the hot plate coating and held at 50°C before heating. A tool comprising square protrusions was placed onto the coated film at 0.132 cm spacing with the protrusions facing down. Each square strut on the tool tapers 6 degrees from 296um at the base to 227um at the top and is 305um high. A 4.6 kg weight was placed on top of the tool to imprint the coating. Allow the tool to contact the membrane for 5 minutes at t...

example 2

[0064] Example 2: Duplicate mold of sacrificial material with adhesive .

[0065] Coating solutions were prepared by dissolving sufficient QPAC 40 in 1,3-dioxolane to yield a final wt% QPAC 40 of 30%. The coating solution was hand coated onto the back of a 0.051 mm (0.002 inch) thick T50 silicone release liner in a notch bar coater. Approximately 50 milliliters of coating solution was applied to the rear of the T50 and pulled through a notch bar coater with a gap of 0.24 inches. The coating was allowed to dry at ambient for 1 hour.

[0066] The coated film was placed face up on a hot plate and kept at 50°C before heating. A tool comprising square protrusions was placed on the coated film at 0.132 cm spacing with the protrusions facing down. Each square strut on the tool tapers 6 degrees from 296um at the base to 227um at the top and is 305um high. A 4.6 kg weight was placed on top of the tool to imprint the coating. Allow the tool to contact the membrane for 5 minutes a...

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Abstract

Pillar delivery films for vacuum insulated glass units are disclosed. The delivery films include a support film or pocket tape, a sacrificial material on the support film, and a plurality of pillars. The pillars are at least partially embedded in the sacrificial material or formed within sacrificial material molds, and the sacrificial material is capable of being removed while leaving the pillars substantially intact. Methods of transferring pillars to a substrate using the pillar delivery films are disclosed. In order to make an insulated glass unit, the delivery films are laminated to a receptor such as a glass pane, and the support film and sacrificial material are removed to leave the pillars remaining on the glass.

Description

technical field [0001] The present invention relates to glass strut delivery films for vacuum glazing and methods for insulating glass units. Background technique [0002] Windows are poor thermal insulators and contribute significantly to building heat loss and low energy efficiency. The need to comply with green building standards is driving the adoption of energy efficient insulating glass units including vacuum designs. figure 1 and figure 2 A vacuum insulating glass unit 10 is shown. Unit 10 comprises two glass panes 11 and 12 separated by a vacuum gap. The struts 14 in the gap maintain the separation of the glass panes 11 and 12, which are hermetically sealed together by an edge seal 13, typically a low melting frit, around the struts. Efficiently and cost-effectively manufacturing a vacuum insulated glass unit can present challenges, particularly the selection of suitable struts, placement of the struts, and sealing the glass pane with the vacuum gap. Accordin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E06B3/667E06B3/677C03C27/06C03C27/12
CPCE06B3/6612E06B3/66304Y02B80/22Y10T428/24802Y10T428/24926Y02A30/249B29C43/00B32B17/00B32B37/025B32B37/15E06B3/67304B29C39/00B32B37/12B32B38/10B32B2305/72B32B2419/00E06B3/663
Inventor 迈克尔·本顿·弗里马丁·B·沃克特里·O·科利尔玛格丽特·M·沃格尔-马丁
Owner 3M INNOVATIVE PROPERTIES CO