Method and an apparatus for the manufacture of a bituminous coating sheet and such coating sheet
Patent 6432252 Issued on August 13, 2002. Estimated Expiration Date: 
August 23, 2020. 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.
August 23, 2020. 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 3911161 3922425 Release compositions for asphalt roofing materials and methods of use Insulating and impervious roofing panels and a process and apparatus for their manufacture Manufacture of built-up roofing products with moisture conditioned fibrous mats Curable topcoat composition and methods for use Self-wound self-adhesive surface covering material Patent #: 6086995 InventorAssigneeApplicationNo. 622789 filed on 08/23/2000US Classes:156/289, Utilizing parting or release material to prevent adhesion427/177, WITH WINDING, BALLING, ROLLING, OR COILING427/186, Roofing produced427/202, Applying superposed diverse coatings or coating a coated base427/209, APPLICATION TO OPPOSITE SIDES OF SHEET, WEB, OR STRIP (EXCLUDING PROCESSES WHERE ALL COATING IS BY IMMERSION)427/384, Organic coating427/385.5, Resin, resin precursor, rubber, or hardenable oil-containing coating427/424Moving the baseExaminersPrimary: Resan, Stevan A.Assistant: Bernatz, Kevin M. Attorney, Agent or FirmForeign Patent References
International ClassB32B 031/12Foreign Application Priority Data1998-02-24 DKAbstractA method of manufacturing a bituminous coating sheet, wherein a bitumen-impregnated core material provided with a layer of backface bitumen is caused to be in contact with one or more rotating bodies during the manufacture. A slip material dispersed/emulsified or dissolved in a liquid is applied onto the bituminous backface layer on the side that is to be brought into contact with a rotating body; and that the liquid is evaporated prior to contact with the rotating body; and that subsequently a further bituminous layer is applied onto the side which is provided with said slip material.Other References
Field of SearchUtilizing parting or release material to prevent adhesionBituminous material or tarry residue Organic coating Resin, resin precursor, rubber, or hardenable oil-containing coating Roofing produced Asphalt, bitumen, oil, or tar containing coating Applying superposed diverse coatings or coating a coated base APPLICATION TO OPPOSITE SIDES OF SHEET, WEB, OR STRIP (EXCLUDING PROCESSES WHERE ALL COATING IS BY IMMERSION) Moving the base WITH WINDING, BALLING, ROLLING, OR COILING Of bituminous or tarry residue ROLL OR COIL | |
