# US 9,039,950 B2 · Method for the production of a layered or stacked inorganic/organic composite material > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,039,950 B2 - Document ID: US9039950B2 - Status: Granted - Kind: B2 - Application number: 12/741,662 - Filed: 2008-05-05 - Published: 2010-11-04 - Granted: 2015-05-26 - Earliest claimed: 2007-11-13 - Assignees: Tesa SE - Applicants: Klaus Keite-Telgenbüscher; Anja Staiger; Uwe Michel - Inventors: Klaus Keite-Telgenbüscher; Anja Staiger; Uwe Michel - Web page: https://patentgrep.com/patent/US9039950B2 ## CPC - C03B 17/02: Forming {molten} glass coated with coloured layers; {Forming molten glass of different compositions or layers; Forming molten glass comprising reinforcements or inserts} - B32B 17/067: {of fibres or filaments} - B32B 27/06: as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material (next to a layer of a particular substance B32B9/045; next to a bituminous or tarry layer B32B11/046; next to a water setting substance layer B32B13/12; next to a metal layer B32B15/08; next to a glass layer B32B17/10; next to a layer formed of natural mineral fibres or particles B32B19/045; next to a wood layer B32B21/08; next to a cellulosic plastic layer B32B23/08; next to a natural or synthetic rubber layer B32B25/08)} - B29C 48/18: the components being layers - Y10T 428/265: 1 mil or less - Y10T 428/31504: Composite [nonstructural laminate] - C03B: MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - 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) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract The invention relates to a method for the production of a layered or stacked inorganic/organic composite material, a predominantly inorganic material being provided and a polymer material being provided, characterized in that the predominantly inorganic material has a glass transition temperature or melting temperature lower than 500° C., that the predominantly inorganic material and the polymer material are each molten, and that the predominantly inorganic material and the polymer material are coextruded from the melt and thus form the composite material. ## Claims ### Claim 1 A process for the production of a layered inorganic/organic composite material, said layered inorganic/organic composite material consisting of a predominantly inorganic material layer, selected from the group consisting of lead glass, phosphate glass and borate glass, and a polymeric layer, the process comprising providing a predominantly inorganic material and a polymeric material, wherein the melting point of the predominantly inorganic material is below 500° C., melting the predominantly inorganic material and the polymeric material, and coextruding the predominantly inorganic material and the polymeric material in order to form the composite material by an extrusion process, wherein the composite material, including both the inorganic material layer and the polymeric layer, is subjected to an orientation process during discharge of the extrusion process, and wherein the thickness of the inorganic material layer is between 5 to 25 μm. ### Claim 2 (depends on 1) The process according to claim 1, wherein the predominantly inorganic material and the polymeric material are coextruded via a coextrusion die or a coextrusion adapter. ### Claim 3 (depends on 1) The process according to claim 1, wherein the composite material is produced with a thickness below 200 μm. ### Claim 4 (depends on 1) The process according to claim 1, wherein the composite material is longitudinally oriented at least in the ratio 1:2 and the composite material is transversely oriented at least in the ratio 1:2. ### Claim 5 (depends on 1) The process according to claim 1, wherein the composite material is heat-conditioned after the extrusion process at a temperature between 30° C. and the softening point or the melting point of the inorganic material. ### Claim 6 (depends on 1) The process according to claim 1, wherein the predominantly inorganic material extruded comprises a glass with a narrow melting range such that the softening point is not more than 50° C. above the glass transition temperature. ### Claim 7 (depends on 1) The process according to claim 1, wherein an additive for flow improvement is added to the inorganic material prior to or during the melting process. ### Claim 8 (depends on 1) The process according to claim 1, wherein the predominantly inorganic material extruded comprises a transparent material with a transmittance of at least 70% in the visible spectral region. ### Claim 9 (depends on 1) The process according to claim 1, wherein the polymeric material comprises a thermoplastic. ### Claim 10 (depends on 1) The process according to claim 1, wherein the polymeric material comprises a transparent material with a transmittance of at least 70% in the visible spectral region. ### Claim 11 (depends on 1) The process according to claim 1, wherein the polymeric material comprises an initially non-transparent material. ### Claim 12 (depends on 1) The process according to claim 1, wherein the polymeric material comprises a polymeric material whose coefficient of thermal expansion in the temperature range from 20° C. to 200° C. is below 25·10−6 K−1. ### Claim 13 (depends on 1) The process according to claim 1, wherein the predominantly inorganic material extruded comprises a material having coefficient of thermal expansion in the temperature range from 20° C. to 300° C. above 12·10−6 K−1. ### Claim 14 (depends on 1) The process according to claim 1, wherein an additive for lowering the coefficient of thermal expansion is added to the polymeric material prior to or during the melting process. ### Claim 15 (depends on 1) The process according to claim 1, wherein the polymeric material comprises an elastomeric or elastomer-modified polymer. ### Claim 16 (depends on 1) The process according to claim 1, wherein the polymeric material comprises an adhesive. ### Claim 17 (depends on 1) The process according to claim 1, wherein the composite material is stamped or cut. ### Claim 18 (depends on 1) The process according to claim 1, wherein the coextrusion process takes place in a multi-manifold die. ### Claim 19 A process for the production of a layered inorganic/organic composite material, said layered inorganic/organic composite material consisting of a predominantly inorganic material layer, selected from the group consisting of lead glass, phosphate glass and borate glass, and to polymeric layers, the process comprising providing a predominantly inorganic material and two polymeric materials, wherein the melting point of the predominantly inorganic material is below 500° C., melting the predominantly inorganic material and the polymeric material, and coextruding the predominantly inorganic material and the polymeric material in order to form the composite material by an extrusion process, wherein the composite material, including the inorganic material layer and the two polymeric layers, is subjected to an orientation process during discharge of the extrusion process, and wherein the thickness of the inorganic layer is between 5 to 25 μm. ### Claim 20 (depends on 19) The process according to claim 19, wherein the two polymeric layers are extruded from respectively different polymeric material.