Method of bonding a phenol-based thermoplastic resin to a cured and molded thermoset phenolic plastic
Patent 4088729 Issued on May 9, 1978. Estimated Expiration Date: 
May 9, 1995. 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.
May 9, 1995. 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 2397101 2768921 2950266 3060068 3354510 3711356 3805457 InventorApplicationNo. 632026 filed on 11/14/1975US Classes:264/259, Shaping material and uniting to a preform51/298, WITH SYNTHETIC RESIN264/263, To unite independent contacting preforms264/279Applying fluent material to preformExaminersPrimary: Arnold, Donald J.Attorney, Agent or FirmInternational ClassesB29B 001/14B29B 003/02 AbstractA method of making grinding wheel mounts by molding a central hub onto a thermoset plastic abrasive disc is provided. An aromatic polycarbonate thermoplastic resin is molded to form a hub on a cured thermoset plastic abrasive disc. It is believed that the polycarbonate forms both a mechanical and chemical bond with the thermoset plastic to provide an efficient method of producing grinding wheels.Field of SearchIMPREGNATING OR COATING AN ABRASIVE TOOLWITH SYNTHETIC RESIN LAMINATING MISCELLANEOUS Polycarboxylic acid ester resin Phenolic-aldehyde resin Co-molding plural fluent materials and uniting to preform Fusion bonding of preformed bodies and shaping at joint only To unite independent contacting preforms Spaced molded portions interconnected by solid preform Shaping material and uniting to a preform Sequential formation of portion on same mold or a preform surface Separately introducing reacting materials into mold Applying fluent material to preform | |
