Method of providing a fire barrier and article therefor
Assignee3M Innovative Properties Company
InventorsGeorge W. Frost, George F. Vesley, Biing-Huel D. Su, Brandon L. Cordts
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Abstract
A method of providing a fire barrier that includes coating an opening in a structure with a composition that includes an elastomer. The composition is substantially free of volatile organic compounds and, when dry, exhibits a tensile strength of from about 300 psi to about 1500 psi, at least about 600% elongation, a modulus of from about 200 psi to about 600 psi, and a tensile toughness of greater than 10 in-lb.
Claims41
A device capable of spraying a composition, said device comprising:
- a chamber;
- and
- a composition comprising an elastomer disposed in said chamber, said composition being substantially free of volatile organic compounds and, when dry, exhibiting a tensile strength of from about 300 psi to about 1500 psi, at least about 600% elongation, a modulus of from about 200 psi to about 600 psi, and a tensile toughness of greater than 10 in-lb.
A device capable of spraying a composition, said device comprising:
- a chamber;
- and
- a composition comprising a carboxylated elastomer disposed in said chamber, said composition being water reducible and, when dry, exhibiting a toughness of at least about 20 in-lb.
A device capable of spraying a composition, said device comprising:
- a chamber;
- and
- a composition comprising a carboxylated elastomer disposed in said chamber, said composition being water reducible and, when dry, exhibiting a modulus of from about 200 psi to about 600 psi and a toughness of greater than 10 in-lb.
The device of claim 35, wherein said composition, when dry, exhibits at least about 600% elongation.
The device of claim 35, wherein said composition, when dry, exhibits a modulus of from about 200 psi to about 600 psi.
The device of claim 35, wherein said composition is capable of passing at least one test selected from the group consisting of Fire Test No. 1, Fire Test No. 2 and Fire Test No. 3, when installed in the fire rated construction of the test.
A device capable of spraying a composition, said device comprising:
- a chamber;
- and
- a composition comprising a carboxylated elastomer disposed in said chamber said composition being water reducible and, when dry, exhibiting a tensile strength of from about 300 psi to about 1500 psi and a toughness of greater than 10 in-lb.
Dependencies are inferred from the claim text.