초록 ▼

A method of filling a seam of a structural panel assembly utilizes a non-foaming, thixotropic, two-component polyurethane elastomeric material. The thixotropic, elastomeric material is prepared by rapidly mixing and initiating the reaction of a first thixotropic component comprising an isocyanate-te

A method of filling a seam of a structural panel assembly utilizes a non-foaming, thixotropic, two-component polyurethane elastomeric material. The thixotropic, elastomeric material is prepared by rapidly mixing and initiating the reaction of a first thixotropic component comprising an isocyanate-terminated compound having at least two reactive isocyanate groups and a second thixotropic component comprising a hydroxyl-terminated compound having at least two reactive hydroxyl groups. Each of the first and second thixotropic components include from about 3% to 8% by weight fumed silica. The second thixotropic component also includes from about 10% to about 50% filler. The thixotropic elastomeric material is applied over the seam of a panel assembly. The method then includes fluidizing the thixotropic elastomeric material and driving the thixotropic elastomeric material into the seam of the panel assembly. The thixotropic elastomeric material is then allowed to cure in the seam, thereby sealing and reinforcing the seam of the panel assembly.

대표청구항 ▼

[ We claim:] [1.] A method of filling a seam of a structural panel assembly having a plurality of panel members and a plurality of support members, said seam defined by edges of abutting panel members, said method comprising the steps of:forming a fast-curing, liquid, non-foaming thixotropic polyure

[ We claim:] [1.] A method of filling a seam of a structural panel assembly having a plurality of panel members and a plurality of support members, said seam defined by edges of abutting panel members, said method comprising the steps of:forming a fast-curing, liquid, non-foaming thixotropic polyurethane elastomeric material by reacting an isocyanate-terminated compound having at least two reactive isocyanate groups, wherein said isocyanate-terminated compound includes, by weight, from about 3% to 8% fumed silica, and a hydroxyl-terminated compound including from about 3% to 8% fumed silica and from about 10% to 50% filler;applying said thixotropic polyurethane elastomeric material over said seam of said panel assembly;fluidizing said thixotropic polyurethane elastomeric material and driving said thixotropic polyurethane elastomeric material into said seam of said panel assembly; andallowing said thixotropic polyurethane elastomeric material to cure in said seam, thereby sealing and reinforcing said seam of said panel assembly.