Method of preparing prelaminate using rough-surfaced interlayer
June 20, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2904844 2909810 3591406 Die for extruding thermoplastic sheets Interlayer for laminated safety glass Extruding colored thermoplastic resin sheets Plastic interlayer for lamination with heights of 10 to 500 microns Polyvinyl butyral sheet roughness control Polyvinyl butyral sheet roughness control Process for producing an embossed thermoplastic resin sheet having a colored layer InventorAssigneeApplicationNo. 106742 filed on 08/16/1993US Classes:156/102, With deformation or shaping of interlayer and/or lamina156/104, With air evacuation between laminae156/106, With preformed intermediate adhesive layer428/141, Continuous and nonuniform or irregular surface on layer or component (e.g., roofing, etc.)428/156Including variation in thicknessExaminersPrimary: Lorin, Francis J.Attorney, Agent or FirmInternational ClassB32B 031/00AbstractA method of preparing a prelaminate for a safety glazing which involves providing a thermoplastic interlayer having a first air removal surface which includes a multiplicity of microscopic embossments of substantially identical shape integrally projecting from the plane of one side of the interlayer in a regular pattern of rows and a second air removal surface on the other side of the interlayer which is different from the first air removal surface and includes a multiplicity of microscopic peaks and valleys of varying heights and depths arranged in an irregular, non-linear pattern, interposing the interlayer between two layers of glass and deairing the interfaces with the glass layers during which the first air removal surface is partially transferred to and imposed on the second air removal surface to provide deair paths of reduced obstruction.Field of SearchOptically transparent glass sandwich making (e.g., window or filter)With deformation or shaping of interlayer and/or lamina With air evacuation between laminae With preformed intermediate adhesive layer Using single, preformed, diverse bonding lamina between other laminae Deforming the surface only Deforming the surface only Continuous and nonuniform or irregular surface on layer or component (e.g., roofing, etc.) Including variation in thickness | |
