Multipane insulating glass process and rim strip
First Claim
1. In a multipane insulating glass having at least two panes and a composite rim strip holding the panes in spaced generally parallel relationship and sealingly overlying the edges of the panes and having a diffusion impermeable metallic layer and an adhesive layer adhering the composite rim strip to the space generally parallel panes, the improvement wherein the composite rim strip comprises an extruded plastic untiary structural body having a transverse profile for structurally holding the panes in said spaced generally parallel relationship wherein said diffusion impermeable metallic layer is embedded in and surrounded by said structural body and wherein said adhesive layer comprises a head melting adhesive anchored to the plastic profile by being pressure extruded jointly therewith.
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Abstract
Several embodiments of an extruded plastic rim strip for holding the panes of a double pane insulating glass in spaced parallel relationship and having a chamber with a moisture absorbent material intermediate the panes and a surface layer of adhesive extruded therewith for securing the rim strip to the panes and provide a seal therebetween.
64 Citations
13 Claims
- 1. In a multipane insulating glass having at least two panes and a composite rim strip holding the panes in spaced generally parallel relationship and sealingly overlying the edges of the panes and having a diffusion impermeable metallic layer and an adhesive layer adhering the composite rim strip to the space generally parallel panes, the improvement wherein the composite rim strip comprises an extruded plastic untiary structural body having a transverse profile for structurally holding the panes in said spaced generally parallel relationship wherein said diffusion impermeable metallic layer is embedded in and surrounded by said structural body and wherein said adhesive layer comprises a head melting adhesive anchored to the plastic profile by being pressure extruded jointly therewith.
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6. In a rim strip for a multipane insulating glass for holding at least two glass panes in spaced generally parallel relationship, the improvement wherein the rim strip comprises an extruded plastic unitary structural body having a transverse profile for structurally holding the panes in said spaced generally parallel relationship and with surfaces thereon adapted for being fitted against the glass panes, an anchored adhesive layer extruded jointly with the plastic body under high pressures for adhesively securing the plastic body to the glass panes, and a locking layer of steam diffusion resistant material embedded in the extruded plastic body.
- 7. A method for making multipane insulating glass having at least two glass panes, an elongated composite rim strip holding the panes in spaced generally parallel relationship and sealingly overlying the edges of the panes and having a diffusion impermeable metallic layer and an adhesive layer for adhering the composite rim strip to the panes, the composite rim strip comprising an extruded plastic unitary structural body having a transverse profile for structurally holding the panes in said spaced generally parallel relationship, and the adhesive layer comprising an extruded layer extruded jointly with the extruded plastic body and thereby anchored to it, the method comprising the steps of extruding the plastic untiary structural body and the adhesive layer together with the adhesive layer being pressure extruded jointly with the plastic body, press fitting the rim strip against the edges of the glass panes with the panes in laterally spaced generally parallel relationship, and bringing the adhesive layer into an active adhesive state at or briefly before the rim strip is press fitted against the edges of the glass panes.
Specification