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US 2018/0345059 A1Published application
Firestop system for marine or off-shore applications
Assignee3M Innovative Properties Company
InventorsJohn C. Hulteen, Richard J. Haffner, Ernst L. Schmidt
Life of this patent
Estimating the term…
Abstract
Described herein is a firestop system for marine or off-shore applications comprising a foam layer comprising at least one fire-stopping additive and a non-porous structural sealant layer.
Claims21
-6. (canceled)
A method of fire-stopping and sealing a substrate, the method comprising
- a. providing a marine construction assembly comprising (i) a major surface, wherein the surface comprises a penetration which intersects the major surface, the major surface further comprising a first attachment area located about the perimeter of the penetration, and (ii) a penetrating object having a second attachment area, wherein the penetrating object passes through the penetration and extends beyond the major surface of the marine construction assembly;
- b. inserting a foam layer comprising at least one fire-stopping additive into the penetration;
- c. applying a non-porous structural sealant to the major surface contacting the first attachment area and the second attachment area to seal the penetration;
- and
- d. curing the non-porous structural sealant.
2 more elements
A firestop assembly comprising:
- a. a foam layer comprising at least one fire-stopping additive;
- b. a non-porous structural sealant layer;
- and
- c. a marine construction assembly comprising a penetration.
1 more element
Dependencies are inferred from the claim text.