Other

Battelle Memorial Institute

Sandvik Rock Tools, Inc.

Philip E Bailey

John M Scales

Richard J Dick

Timothy J Shean

Raymond R Chervenak

John Douglas Booton

James P Pfau

Rick L Jones

Nancy J Fulton

Frank B Akers, Iii

A curtain for defining a barrier in an underground passageway between a pair of spaced-apart pillars, comprising a bladder defined by a pair of flexible sheets joined together by a plurality of cords which define a cavity between the sheets and being open at a top edge thereof. The bladder is fastened to a ceiling of an underground passageway between a pair of spaced-apart pillars therein. A rigid foam is disposed within the cavity, being formed of a flowable hardenable material introduced into the cavity. A fire-retardant coating is applied to exposed surfaces of the bladder after the hardenable material has hardened. A method of closing gaps between pillars in mine galleries is disclosed.

Mine gallery curtain and method

The present invention is directed to a water-resistant, aqueous base-dispersible article which comprises a pulp-filled binder, one of which is an ethylenically unsaturated carboxylated (e.g. acrylic) polymer soluble in base, the other of which is water-resistant. Accordingly, the pulp can be water-resistant while the binder is base-dispersible or the converse can be true. Cellulosic and polymeric pulp are ideally suited for filling an base-soluble acrylic polymer. Water-soluble resins can be incorporated into the article for controlling the properties for special purposes. The method for forming such an article comprises yet another aspect of the present invention.

Dispersible articles

A method for stabilizing a subterranean formation which includes introducing a stabilizing composition into a subterranean formation, for example, by pumping into and through cracks and crevices in the formation and allowing the stabilizing compositions to cure thereby stabilizing the formation. The stabilizing composition includes a non-shrink synthetic resin, a catalyst and various additives and fillers.

Stabilizing compositions and methods for stabilizing subterranean

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Bristol, TN, United States of America

Philip E Bailey