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Glazing utilizing rim process to produce sealed and framed insulating glass unit

  • US 5,061,531 A
  • Filed: 12/15/1989
  • Issued: 10/29/1991
  • Est. Priority Date: 07/18/1988
  • Status: Expired due to Term
First Claim
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1. An architectural glazing unit having its own architecturally and structurally independent frame consisting of:

  • a first glass plate;

    a second glass plate spaced from said first glass plate;

    a moisture impervious spacer member inserted between said first and second glass plates and separating said first glass plate from said second glass plate, said spacer member having opposite edges adjacent said respective first and glass plates and extending completely about the periphery of said plates;

    a primary seal member positioned as an interface member between each opposite edge of said spacer member, which is adjacent each of said first and second glass plates and said respective glass plate, thereby sealing said spacer member to each of said plates; and

    a frame member having a first portion extending between the juxtaposed faces of said first and second glass plates to cover said juxtaposed plates said spacer member and said primary seal member, whereby a secondary seal member is created as a continuous part of said frame member, said frame member also having a second portion extending outwardly about the periphery of said glass plates to frame said glass plates and thereafter extending outwardly to form an architectural structural member being of sufficient strength and hardness to function as an architectural structural frame nature;

    wherein said frame member first and second portions are RIM process material having been formed in situ through a RIM process and wherein there exists a molecular bonding of said frame RIM process material to said glass plates through a single coupling agent, said RIM process material forming said second seal member as well as said frame member and wherein said RIM process material is a polyurethane elastomer having a Shore D scale hardness of at least 30.

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