# US 11,298,923 B2 · Edifice sealing web, and process for manufacturing same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,298,923 B2 - Document ID: US11298923B2 - Status: Granted - Kind: B2 - Application number: 16/756,897 - Filed: 2018-10-19 - Published: 2021-02-04 - Granted: 2022-04-12 - Earliest claimed: 2017-10-20 - Assignees: BMI Steildach GmbH - Applicants: BMI Steildach GmbH - Inventors: Udo Simonis; Johannes Glück - Web page: https://patentgrep.com/patent/US11298923B2 ## CPC - B32B 27/08: of synthetic resin - B32B 7/12: using interposed adhesives or interposed materials with bonding properties - B32B 27/18: characterised by the use of special additives - B32B 27/304: {comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF} - B32B 27/32: comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)} - B32B 27/34: comprising polyamides - B32B 37/04: characterised by the partial melting of at least one layer - E04B 1/665: {Sheets or foils impervious to water and water vapor} - E04D 5/10: by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen - B32B 2270/00: Resin or rubber layer containing a blend of at least two different polymers - B32B 2307/538: Roughness - B32B 2307/7265: Non-permeable - B32B 2307/732: Dimensional properties - B32B 2419/00: Buildings or parts thereof - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - E04B: GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS (border constructions of opening in walls, floors or ceilings E06B1/00; {electromagnetic shielding H05K9/0001}) - E04D: ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS (coverings of outer walls by plaster or other porous material E04F13/00) ## Abstract An edifice sealing web that includes a sealing web facing away from the edifice, an adjoining barrier layer which extends on the side facing the edifice and is based on mixtures of homopolyamides and/or copolyamides, and a self-adhesive layer. ## Claims ### Claim 1 An edifice sealing web, comprising a sealing web facing away from the edifice and containing plasticizers, an adjoining barrier layer which extends on the side facing the edifice and is based on mixtures of homopolyamides and/or copolyamides, and a self-adhesive layer containing an oil adjoining the barrier layer directly, wherein the barrier layer comprises at least two layers, of which a first layer is a hot melt adhesive layer containing a copolyamide and a second layer is another layer containing a homopolyamide, wherein the first layer is bonded to the sealing web, and wherein the barrier layer prevents migration of the plasticizers from the sealing web and prevents migration of the oil from the self-adhesive layer, wherein the surface of the sealing web that is connected to the barrier layer which extends on the side facing the edifice has a roughness with Ra=2.5-10 μm, Rz=20-50 μm, and Rmax=25-65 μm, wherein Rmax=the maximum roughness depth, Ra=the arithmetic mean roughness value, Rz=the averaged roughness depth, and wherein the sealing web includes a base polymer, a polymeric softening agent based on an adipic acid polyester or sebacic acid polyester. ### Claim 2 (depends on 1) The edifice sealing web according to claim 1, wherein the sealing web is based on PVC-P (soft PVC). ### Claim 3 (depends on 1) The edifice sealing web according to claim 1, wherein the sealing web is based on PVC-P (soft PVC), containing a polymeric softening agent. ### Claim 4 (depends on 1) The edifice sealing web according to claim 1, wherein the polyamides in the barrier layer are aliphatic polyamides. ### Claim 5 (depends on 1) The edifice sealing web according to claim 1, wherein the barrier layer contains at least one of PA6, PA6.6 and PA12. ### Claim 6 (depends on 1) The edifice sealing web according to claim 1, wherein the second layer containing the homopolyamide is multilayered and comprises at least one layer that is based on polyolefins. ### Claim 7 (depends on 1) The edifice sealing web according to claim 1, wherein the first layer extends on the sealing web side and is multilayered and comprises at least one layer that is based on polyolefins. ### Claim 8 (depends on 1) The edifice sealing web according to claim 1, wherein the barrier layer contains a) 10-95% by weight of a copolyamide that is based on a combination of equimolar quantities of piperazine and a C6-C20 amino substituted dicarboxylic acid, b) 5-90% by weight of a copolyamide, which contains polyether sequences, and c) 5-50% by weight of other copolyamides, and 0.5-15% by weight of additives. ### Claim 9 (depends on 1) The edifice sealing web according to claim 1, wherein the barrier layer contains a thermoplastic compound containing copolyamide of 70-99%, a lubricating agent or antiblocking agent of 0 to 30%, and a foaming or raising agent of 0.2 to 30%. ### Claim 10 (depends on 9) The edifice sealing web according to claim 9, wherein the thermoplastic compound contains 90-99% copolyamide. ### Claim 11 (depends on 9) The edifice sealing web according to claim 9, wherein the barrier layer contains 2-5% lubricating agent or antiblocking agent. ### Claim 12 (depends on 9) The edifice sealing web according to claim 9, wherein the barrier layer contains 0.2-1.0% foaming or raising agent. ### Claim 13 (depends on 1) The edifice sealing web according to claim 1, wherein the barrier layer is a fused film. ### Claim 14 (depends on 1) The edifice sealing web according to claim 1, wherein the barrier layer has a thickness DB that is equal to or greater than 5 μm and equal to or less than 300 μm. ### Claim 15 (depends on 1) The edifice sealing web according to claim 1, wherein the self-adhesive layer has a thickness DS that is equal to or greater than 0.5 mm and equal to or less than 1.1 mm. ### Claim 16 (depends on 1) The edifice sealing web according to claim 1, wherein the sealing web contains at least one material selected from the group consisting of PVC (polyvinyl chloride), TPE (thermoplastic elastomer), TPO (thermoplastic elastomer based on olefin), TPV (thermoplastic vulcanizate), EPDM (ethylene propylene diene rubber), EVA (ethylene vinyl acetate), PP (polypropylene), PE (polyethylene), and PA (polyamide). ### Claim 17 (depends on 1) The edifice sealing web according to claim 1, wherein the self-adhesive layer contains at least one material selected from the group consisting of bitumen, butyl, SBS (styrene butadiene styrene), SBR (styrene butadiene rubber), acrylate compounds, silane terminated polymers, and polyolefins. ### Claim 18 (depends on 1) The edifice sealing web according to claim 1, wherein the barrier layer completely covers the surface of the sealing web on the side facing the edifice. ### Claim 19 (depends on 1) The edifice sealing web according to claim 1, wherein to form a weld edge, a longitudinal edge region of the sealing web is not covered by the barrier layer. ### Claim 20 (depends on 19) The edifice sealing web according to claim 19, wherein the self-adhesive layer runs at a distance from the edge of the barrier layer, which runs on the side of the weld edge. ### Claim 21 (depends on 1) The edifice sealing web according to claim 1, wherein the barrier layer covers a weld edge. ### Claim 22 (depends on 1) An edifice sealing web according to claim 1, wherein independent of the sealing web, the edifice sealing web is free of a layer of reinforcing material. ### Claim 23 (depends on 1) The edifice sealing web according to claim 1, wherein the barrier layer contains, a thermoplastic compound containing copolyamide of 90-99%, a lubricating agent or antiblocking agent of 2 to 5%, and a foaming or raising agent of 0.2 to 1.0%. ### Claim 24 (depends on 1) The edifice sealing web according to claim 1, wherein the barrier layer has a thickness DB that is equal to or greater than 25 μm and equal to or less than 60 μm. ### Claim 25 (depends on 1) The edifice sealing web according to claim 1, wherein the self-adhesive layer has a thickness DS that is equal to or greater than 0.7 mm and equal to or less than 0.9 mm. ### Claim 26 (depends on 1) The edifice sealing web according to claim 1, wherein the sealing web further includes monomeric softening agent based on phthalic acid esters. ### Claim 27 (depends on 1) The edifice sealing web according to claim 1, wherein the polymeric softening agent is based on an adipic acid polyester or a sebacic acid polyester with an average molecular weight of 3,000 to 12,000. ### Claim 28 (depends on 1) A process for manufacturing an edifice sealing web according to claim 1, comprising the processing steps of: manufacturing a sealing web, affixing a barrier layer that is based on a polyamide or a copolyamide, on one side of the sealing web, and applying a molten self-adhesive layer to the barrier layer while simultaneously melting or fusing the barrier layer. ### Claim 29 (depends on 28) The process according to claim 28, wherein the single layer or multilayer barrier layer is in the form of a barrier film and is applied directly to the sealing web and the self-adhesive layer is applied directly to the barrier layer. ### Claim 30 (depends on 29) The process according to claim 29, wherein to affix the barrier film, said barrier film is heated to a temperature T1 with 60° C. ≤T1≤80° C.