Patent
Bentonite-gelled oil waterproofing composition
TLDR
In this paper, a bentonite composition useful for preventing a flow of water through a structure is disclosed, which has substantially all of the bentonite in non-hydrated form by dispersing the bendonite throughout a nonaqueous gel formed from a non-aqueous liquid and a suitable gelling agent for the liquid to form a cohesive mass.Abstract:
A 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.read more
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Prolonged release of biologically active polypeptides
TL;DR: In this paper, the authors describe a method for prolonged parenteral release of a bioactive polypeptide at desirably effective levels using novel compositions in which the polypeptic is present in a biocompatible oil in an unusually high proportion such as at least about 10% by weight.
Patent
Composite mixtures for improving gel strength of water absorbent gels
Mark J. McKinley,Dan P. Sheridan +1 more
TL;DR: Water absorbent compositions exhibiting increased gel strengths comprise a water-swellable hydrophilic polymer and an inorganic powder and are prepared by physically blending the polymer and powder as discussed by the authors.
Patent
Aqueously- swelling water stopper and a process of stopping water thereby
Ishido Yoshinobu,Hideo Tanaka +1 more
TL;DR: In this paper, a water stopper and water stopping process using an aqueously-swelling water-stopping composition consisting of 10 to 40 weight % of rubber whose main ingredient is reclaimed rubber, 10 to 20 weight percent of silicic compound, and 10 to 60 percent of bentonite was used.
Patent
Prolonged release of biologically active somatotropins
TL;DR: In this paper, the authors describe a method for prolonged parenteral release of a bioactive polypeptide at desirably effective levels using novel compositions in which the polypeptic is present in a biocompatible oil in an unusually high proportion such as at least about 10% by weight.
Patent
Landfill gas recovery method
TL;DR: In this paper, the authors proposed a method of collecting landfill gas from a landfill comprising providing a porous collector in the landfill having a relatively broad collection zone in the path of migrating landfill gas, controlling the pressure in the collector to induce the landfill gas near the collectors to flow into the collector, and substantially excluding air from the atmosphere from entering the collector.
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Patent
Moisture impervious panel
TL;DR: A moisture impervious panel includes a pair of spaced facing sheets interconnected by a central rigid support sheet, such as corrugated fiberglass, to form a plurality of pockets between the support sheet and the facing sheets.
Patent
Method and means for impeding the seepage or flow of water
TL;DR: In this article, improved methods and means for impeding the flow of water and for reinforcing structures to prevent the seepage of water there through. But this method is not suitable for water embankments.
Patent
Method and composition for preventing water contaminated with industrial waste seeping through soil containing said water
TL;DR: In this article, a method for containing water having a high concentration of water-soluble industrial waste which, when in contact with bentonite, disintegrates the bentonite thereby allowing seepage of water through soil containing said water, is disclosed.
Patent
Dam of earth or rock fill having impervious core
Franz List,Franz Scheul +1 more
TL;DR: In this article, a dam of earth or rock fill is provided with an impervious core by forming a trench near the center of the fill and sequentially building plate-shaped wall sections in the trench from poured soil-cement mixture.
Patent
Plugging water sands by a hydratable material
TL;DR: In this paper, the authors proposed a method to exclude water from oil and gas wells by shutting off the flow of water from the well. But water frequently enters the well along with the oil or gas.