# US 11,027,311 B2 · Flow aid for an infusion arrangement for infiltrating a resin into a fiber material > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,027,311 B2 - Document ID: US11027311B2 - Status: Granted - Kind: B2 - Application number: 15/872,132 - Filed: 2018-01-16 - Published: 2018-07-19 - Granted: 2021-06-08 - Earliest claimed: 2017-01-16 - Assignees: Volkswagen Aktiengesellschaft - Applicants: Eleftherios Gerolymos - Inventors: Eleftherios Gerolymos - Web page: https://patentgrep.com/patent/US11027311B2 ## CPC - B05D 1/26: performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface - B05C 1/025: {to flat rectangular articles, e.g. flat sheets (B05C1/027 takes precedence)} - B05C 5/02: {the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g.} from an outlet device in contact or almost in contact, with the work - B05D 3/0493: {using vacuum} - B29C 70/443: {and impregnating by vacuum or injection} - B29C 70/547: {using channels or porous distribution layers incorporated in or associated with the product} - B32B 38/0004: {Cutting, tearing or severing, e.g. bursting; Cutter details (cutting in general B26D; laminating combined with punching or perforating B32B38/04; removing all or part of the layers B32B38/10; cutting in combination with laying up and registration B32B38/185 takes precedence)} - B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02) - B05C: APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (spraying apparatus, atomising apparatus, nozzles B05B; plant for applying liquids or other fluent materials to objects by electrostatic spraying B05B5/08) - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ## Abstract A flow aid for an infusion arrangement for infiltrating a resin into a fiber material, wherein at least two different resin-permeable plies, which lie atop one another and are joined to one another in the region of their faces lying atop one another, with one ply being a peel ply which on its exposed face is covered sectionally or over the full area with an adhesive agent, which is covered with a removable protective ply, or which can be activated after the mounting of the flow aid. ## Claims ### Claim 1 A flow aid for an infusion arrangement for infiltrating a resin into a fiber material, consisting of three different resin-permeable plies and optionally a protective ply, which lie atop one another and are joined to one another in the region of their faces lying atop one another, wherein the three plies are optionally joined with adhesive layers, wherein the three different resin-permeable plies lying atop one another are a first ply being a three-dimensional ply, a second ply being a release film joined to the three-dimensional ply in the region of their faces lying atop one another, and a third ply being the peel ply which is joined to the release film, wherein the peel ply has an outer face directed away from the release film that is covered at least sectionally with an adhesive agent, and wherein all of the plies and the adhesive agent are resin permeable. ### Claim 2 (depends on 1) The flow aid according to claim 1, wherein the protective ply is present, and is a a release film or a three-dimensional ply separate from the three resin-permeable plies and removably attached to the adhesive agent on the outer face of the peel ply. ### Claim 3 (depends on 2) The flow aid according to claim 2, wherein the three-dimensional ply is a polymeric textile fabric, knitted polymeric structure or polymeric mesh. ### Claim 4 (depends on 3) The flow aid according to claim 3, wherein the polymeric textile fabric, knitted polymeric structure or polymeric mesh is made of polyethylene (PE), high density polyethylene (HDPE), low density polyethylene (LDPE), polyamide (PA), polypropylene (PP), polyether sulfone (PES), polytetrafluoroethylene (PTFE), fluorinated ethylene propylene (FEP), ethylene tetrafluoroethylene (ETFE), perfluoro alkoxy alkene polymer (PFA), polysulfone (PSU), polyphenylene sulfide (PPS) or a polyimide. ### Claim 5 (depends on 1) The flow aid according to claim 1, wherein the peel ply is a polymeric textile fabric. ### Claim 6 (depends on 5) The flow aid according to claim 5, wherein the polymeric textile fabric is made of polyethylene (PE), high density polyethylene (HDPE), low density polyethylene (LDPE), polyamide (PA), polypropylene (PP), polyether sulfone (PES), polytetrafluoroethylene (PTFE), fluorinated ethylene propylene (FEP), ethylene tetrafluoroethylene (ETFE), perfluoro alkoxy alkene polymer (PFA), polysulfone (PSU), polyphenylene sulfide (PPS) or a polyimide. ### Claim 7 (depends on 1) The flow aid according to claim 1, wherein the flow aid is uniformly trimmed on all sides, or on one or more sides the peel ply extends beyond the three-dimensional ply and the release film and the flow aid is trimmed on the remaining sides. ### Claim 8 (depends on 1) The flow aid according to claim 1, wherein the adhesive agent on the outer face of the peel ply is activatable after mounting of the flow aid. ### Claim 9 (depends on 1) The flow aid according to claim 1, wherein the adhesive layers are present between the first ply and the second ply and between the second ply and the third ply, wherein the adhesive layers are an adhesive agent in a quantity of 2-5 g/m2 and wherein the adhesive layers are resin permeable. ### Claim 10 (depends on 1) The flow aid according to claim 1, wherein the outer face of the peel ply is covered by the adhesive agent in a quantity of 2-5 g/m2.