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US 8,206,620 B1Granted
Optically clear fire resistant windows
AssigneeAGP Plastics, Inc.
InventorsNelson Bolton, W. Novis Smith, Elizabeth Wimmer
Life of this patent
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Abstract
There is provided a composition and a method for forming fire resistant panes containing borate-phosphate anions and the window pane and window assemblies prepared therefrom.
Claims13
A meltable and pourable composition for forming a fire resistant window pane which comprises;
- a) about 10 to 40% by weight of Tris (hydroxymethyl) aminomethane;
- b) about 10 to 30% by weight of a member selected from the group consisting of, ammonium dibasic phosphate, ammonium phosphate and their hydrates and phosphoric acid;
- c) about 35 to 65% by weight of a member selected from the group consisting of sodium tetraborate decahydrate, sodium borate, potassium borate;
- lithium borate;
- boric acid, alkali metal borates and their hydrates, ammonium borate, and boric anhydride;
- d) about 0 to 25% by weight of a member selected from the group consisting of sodium phosphate, sodium and potassium dihydrogen phosphate, sodium and potassium monobasic phosphate and their hydrates, and lithium dihydrogen phosphate, and
- e) about 10 to 30% by weight water.
4 more elements
A meltable and pourable composition for forming a fire resistant window pane which comprises:
- a) about 10 to 25% by weight of Tris (hydroxymethyl) aminomethane;
- b) about 10 to 25% by weight of ammonium dibasic phosphate;
- c) about 30 to 40% by weight of sodium borate decahydrate, and
- d) about 10 to 30% by weight water.
1 more element
Dependencies are inferred from the claim text.