초록 ▼

A composite structure comprising a preformed flexible laminate in adhering contact with at least a first and second transparent or translucent panel members such as would be useful as an insulated glass unit. The flexible laminate contains an undulating spacer element either partially or totally emb

A composite structure comprising a preformed flexible laminate in adhering contact with at least a first and second transparent or translucent panel members such as would be useful as an insulated glass unit. The flexible laminate contains an undulating spacer element either partially or totally embedded within a core material and has a polymeric coating on at least one surface thereof. The flexible laminate effectively seals the interior of the panel structure from air and/or moisture and maintains a desired distance between the panels. A multi-cavity extrusion die for forming the preformed flexible laminate has a core cavity for receiving the core material as well as the undulating continuous spacer element. Converging walls within the core cavity serve to embed at least one side of the spacer element in the core material and a land area forms a desired shape or configuration wherein the spacer element undulation is maintained. At least one polymeric feed cavity located downstream from said core cavity and said land area applies a polymeric film or coating to at least a surface of the embedded spacer element. A plurality of optional feed cavities can apply the same or different polymers to additional surfaces of the embedded spacer element and can totally cover or encapsulate the same.

대표청구항 ▼

1. A unitary seal for spacing apart at least two facing panel members to form a panel structure, said unitary seal comprisinga) at least one adhesive film continuous along the length of said unitary seal for adhering a core material to said facing panel members; b) wherein the core material comprise

1. A unitary seal for spacing apart at least two facing panel members to form a panel structure, said unitary seal comprisinga) at least one adhesive film continuous along the length of said unitary seal for adhering a core material to said facing panel members; b) wherein the core material comprises at least one deformable viscoelastic core material continuous along said length and in physical contact with at least one adhesive film, wherein the deformable viscoelastic core material has properties such that it can be compressed while forming a coherent seal; c) at least one spacer element continuous along the length of said unitary seal, partially embedded in or embedded in said core material and being bendable to conform to the periphery of said panel members without forming discontinuities in said spacer element, said spacer element having a width and a thickness, said at least one spacer element having a greater width than thickness and having at least twice the rigidity to a compressive load, when said load is applied along the width rather than applied along the thickness, wherein the adhesive film is compositionally different than said core material.