The invention provides a method of treating of a well, a formation, or both, with the solids, liquids, or apparatuses, by 1) encasing said solids, liquids, or apparatuses in a water-soluble shell, 2) conveying said encased solids, liquids, or apparatuses to a predetermined location in the well, and then 3) allowing the water-soluble shell to dissolve in the aqueous phase in the wellbore. The shell is preferably made of water-soluble polyvinyl alcohol copolymers and a waterproofing agent. The shell encases a variety of solids, liquids, or combinations thereof, where said solids or liquids are useful in the treatment of the well or of the producing formation. Illustrative encased material includes soap, acid, corrosion inhibitors, chelating agents, scale inhibitors, mutual solvents, paraffin inhibitors, paraffin dissolvers, clay stabilizers, and tracer materials. The encased materials may also be apparatuses, such as a prefabricated screen completion or a prefabricated sand-pack. The tool used to deliver the apparatuses may also be made from a water-soluble polyvinyl alcohol copolymer.

Downhole chemical delivery system for oil and gas wells

The present invention relates to the development of new porous particulate collagen sponges, combining the desirable features of low toxicity, resorbability, and satisfactory porosity, particularly when wetted in an aqueous medium. Accordingly, the present invention is directed to new porous, particulate, dehydrothermally cross-linked, wetted sponges, as well as a process for making them.

Porous particulate collagen sponges

Systems and methods for removing hydrocarbons and other pollutants from roadway surfaces are provided. The systems can include a pollution trap attached to a vehicle, where the pollution trap comprises an absorbent pad, filter, or membrane. The pollution trap is affixed to the vehicle, for example, in the wheel well, on a mud flap, on the underside of a vehicle or another suitable place where the pollution trap can be exposed to a roadway pollutant. The methods described herein can include liberating roadway pollutants from a roadway and using a pollution trap to collect the liberated roadway pollutants.

System and method for removing pollutants from a roadway

The invention describes compositions and methods for inhibiting microbial infections associated with the use of sanitary products, such as diapers, bandages, sanitary napkins, tampons and the like. The invention comprises providing for use a sanitary product containing an effective amount of a viable non-pathogenic lactic-acid bacteria, such as Bacillus coagulans , or an extracellular product thereof, useful for inhibiting growth of parasites and pathogens on the epithelial tissue in contact with the sanitary product during use of the product. The invention also provides for enhancing biodegradation of sanitary products after use and disposal. Also described are methods using the product and systems containing the compositions.

Absorbent product containing absorbent structure and bacillus coagulans

A module for removing polluting agents from the surface of the sea consists of absorbent polyolefinic fibres enclosed inside a permeable sheath having a short-length bundle configuration with a star-like or lenticular cross-section After absorbing oily substances, the cross-section of the module becomes polygonal or circular

Modular element for absorbing oily substances from surfaces of water bodies and purification system using such elements

An improved process for absorbing oils and especially separating and recovering oils from an aqueous medium or aqueous/wetted medium using an absorbent oleophilic biodegradable sponge material comprised of essentially fat-free, foamable natural products, specifically animal proteins or plant polysaccharides, such as gelatin, collagen, egg white albumen, gum agar, gum arabic, gum karaya, and locust bean gum, which absorb oils at a rate of at least about 30 times their weight.

Process for separating and/or recovering hydrocarbon oils from water using biodegradable absorbent sponges

Magnesium is a promising metal for resorbable cardiovascular implants due to its high biocompatibility, high corrosion tendency, and mechanical properties. However, adapting its corrosion rate to the physiological healing processes is required to ascertain a safe graft function. A protective polymeric layer is supposed to slow down the corrosion rate of magnesium. Additionally, coatings can improve the host’s tissue interaction with the implant by implementing the local delivery of antibiotic drugs and growth or cell adhesion factors. However, little is known about the interaction of polymer-based coatings, their degradation, and magnesium corrosion. This study examines the corrosion mechanism of magnesium protected by spin coatings and electrospun fiber coatings under physiological conditions. Pure magnesium specimens were coated with polycaprolactone (PCL). The corrosion of the coated magnesium was evaluated using an immersion test in simulated body fluid. Spin coatings provided efficient protection against corrosive attacks and a significantly lower corrosion rate by 75% compared to uncoated magnesium. In contrast, fiber coatings did not provide relevant corrosion protection. On the other hand, magnesium corrosion caused the accelerated degradation of the PCL layer. A reliable and safe implant function is vital, especially in cardiovascular applications. Magnesium coating, therefore, should be carried out with spin coatings.

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In Vitro Investigation of Corrosion Control of Magnesium with Degradable Polycaprolactone Coatings for Cardiovascular Grafts

Method of separation and/or isolation of hydrocarbon oils from water using biodegradable absorbing sponge

IS A PROCESS TO IMPROVE ABSORPTION OIL AND ESPECIALLY separate and recover an aqueous medium or dry USING A absorvente SPONGE BIODEGRADABLE oleophilic consisting essentially of fat-free products NATURAL SPARKLING, particularly animal proteins or polysaccharides such as gelatin, COLAGENO, WHITE EGG ALBUMIN, guar gum, acacia, karaya GOMA, and locust bean gum, WHICH absorb the oils in a ratio of at least about 30 times its own weight.

Marc B Mueller

Papers

Process for separating and/or recovering hydrocarbon oils from water using biodegradable absorbent sponges

In Vitro Investigation of Corrosion Control of Magnesium with Degradable Polycaprolactone Coatings for Cardiovascular Grafts

Method of separation and/or isolation of hydrocarbon oils from water using biodegradable absorbing sponge

Method for separating and / or recovering hydrocarbon oils from water using biodegradable absorbent sponges.