Flame retarding compositions for cellulosic boards
Patent 4126473 Issued on November 21, 1978. Estimated Expiration Date: 
June 20, 1997. 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.
June 20, 1997. 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 1804417 2632743 3819518 3865760 3897387 InventorsAssigneeApplicationNo. 05/808017 filed on 06/20/1977US Classes:106/18.12, Silicon containing106/18.15, Nitrogen-containing phosphorus compound162/159, Fire proofing agent162/181.2, Metal salt other than silicate162/181.3, Sulfate or sulfite162/181.5, Metal other than alkali metal, magnesium, or alkaline earth metal252/607, For wood or cellulosic material other than textile428/921Fire or flameproofingExaminersPrimary: Hayes, Monroe H.Assistant: Thompson, W. Attorney, Agent or FirmInternational ClassesC08L 97/00 (20060101)C08L 97/02 (20060101) C08K 3/00 (20060101) C08L 61/00 (20060101) C08L 61/06 (20060101) AbstractSynergistically performing flame retarding compositions are provided for cellulosic boards, such as hardboards, particleboards and fiberboards. The synergistically performing compositions consist of three components, namely, an aluminous material, a naturally occurring borate-containing mineral and a phosphate or sulfate salt. Incorporation of these compositions in the boards allows consistent production of flame-retarded products with a Class I or better fire rating. | |
