Bentonite-gelled oil waterproofing composition
Patent 4209568 Issued on June 24, 1980. Estimated Expiration Date: 
September 18, 1998. 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.
September 18, 1998. 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 2256047 2261260 2277286 2856301 3186896 Method and composition for preventing water contaminated with industrial waste from seeping through soil containing said water Method and composition for preventing water contaminated with industrial waste seeping through soil containing said water Soil consolidation method Method and composition for preventing water contaminated with industrial waste seeping through soil containing said water 4090363 InventorAssigneeApplicationNo. 05/942935 filed on 09/18/1978US Classes:428/454, Sand, clay or mica (silica excluded)106/33, Leak stopping285/925, SWELLS WHEN WET405/107, Artificial water barrier (e.g., dam, levee, etc.)405/116, In situ construction405/263, Chemical405/270, Impermeabilization428/484.1, Of wax or waxy material428/485, Next to cellulosic428/497, Of natural gum, rosin, natural oil or lac428/498, Next to cellulosic428/702, O-containing428/911, PENETRATION RESISTANT LAYER501/142, And phosphorus (e.g., bone china, etc.)52/169.14With waterproofing means; e.g., covering, coating, or laminaExaminersPrimary: Ansher, HaroldAttorney, Agent or FirmInternational ClassesC09K 17/40 (20060101)C09K 17/42 (20060101) C09D 5/34 (20060101) E02D 19/00 (20060101) E02D 19/16 (20060101) AbstractA bentonite composition useful for preventing a flow of water through a structure is disclosed. The composition has substantially all of the bentonite in non-hydrated form by dispersing the bentonite throughout a non-aqueous gel formed from a non-aqueous liquid and a suitable gelling agent for the liquid to form a cohesive mass capable of adhering to a structure while maintaining a desired, cohesive form. The composition can be made into sheets, rods, tubes and the like. For example, the composition can be applied to one side of a water permeable cellulosic fiber containing sheet and the composition side of the sheet secured over an area of potential water flow. | |
