Sprayable fireproofing composition
Patent 4751024 Issued on June 14, 1988. Estimated Expiration Date: 
April 7, 2006. 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.
April 7, 2006. 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 ReferencesInventorsAssigneeApplicationNo. 06/849232 filed on 04/07/1986US Classes:252/601, FIRE RETARDING106/18.11, Contains fireproofing agent252/602, Having disparate function252/62, HEAT OR SOUND INSULATING428/402, Particulate matter (e.g., sphere, flake, etc.)428/404, Silicic or refractory material containing (e.g., tungsten oxide, glass, cement, etc.)428/407, Including synthetic resin or polymer428/920, FIRE OR HEAT PROTECTION FEATURE428/921, Fire or flameproofing524/8Solid polymer derived from ethylenically unsaturated hydrocarbon onlyExaminersPrimary: Lechert, Stephen J. Jr.Assistant: Locker, Howard J. Attorney, Agent or FirmInternational ClassesC04B 16/00 (20060101)C04B 16/08 (20060101) C04B 28/00 (20060101) C04B 28/02 (20060101) C09K 21/14 (20060101) C09K 21/00 (20060101) AbstractFireproofing compositions for steel structural members are provided. The compositions comprise a hydratable cementitious binder, shredded polystyrene aggregate, an air entraining agent, and a fibrous material. On addition of water, the compositions form settable, sprayable slurries which can be pumped to the point of application. The slurries are capable of spray application to steel structural members and adhere to the member in the slurried state and after setting. Excellent fire and heat protection is provided to the member despite the organic nature of the polystyrene aggregate. | |
