Title:
TREATMENT OF ROCK SURFACES
Document Type and Number:
WIPO Patent Application WO2001063096
Kind Code:
A3
Abstract:
A method for providing a protective coating in a mine comprises spraying onto the rock surfaces of the mine a hot melt adhesive in an amount to form a coating at least 1 mm, preferably at least 2 mm in thickness and allowing to coating to solidify. The hot melt adhesive preferably has a melting point on the range from 70 to 250 degrees Centigrade and may include a filler such as an inert material in finely divided form such as ground limestone, mica, sand and silica, the filler comprising between 1 and 40 % by weight of the combined weight of adhesive and filler.
Inventors:
MILLS PETER SHELLEY (US)
Application Number:
PCT/GB2001/000717
Publication Date:
March 21, 2002
Filing Date:
February 21, 2001
Export Citation:
Assignee:
FOSROC INTERNATIONAL LTD (GB)
SHELLEY MILLS PETER (US)
SHELLEY MILLS PETER (US)
International Classes:
E21D9/00; E21D11/00; E21D9/06; (IPC1-7): E21D11/38; E21D11/00
Domestic Patent References:
| WO1998058886A2 | 1998-12-30 |
Foreign References:
| FR2750430A1 | 1998-01-02 | |||
| DE1187657B | 1965-02-25 | |||
| EP0254501A1 | 1988-01-27 | |||
| US5375766A | 1994-12-27 | |||
| US4368924A | 1983-01-18 | |||
| GB2159512A | 1985-12-04 | |||
| DE3705095A1 | 1988-09-01 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 008, no. 145 (C - 232) 6 July 1984 (1984-07-06)
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