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Current content: 155 519 367 patent documents

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123 361 new documents added

1 354 331 documents amended

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EP 0008127 B1 19820414 - PROCESS FOR CONSOLIDATING COAL AND/OR ROCK IN MINES

Title (en)

PROCESS FOR CONSOLIDATING COAL AND/OR ROCK IN MINES

Publication

EP 0008127 B1 19820414 (DE)

Application

EP 79102934 A 19790813

Priority

DE 2835451 A 19780812

Abstract (en)

[origin: EP0008127A1] 1. A process for consolidating coal and/or rock in mining by the injection of a dispersion which hardens after its entry and which comprises a magnesium chloride solution, calcined magnesite, highly-active magnesium oxide, bentonite and water, characterized in that an amount of more than 2.5 % by weight of hyghly-active magnesium oxide is admixed and that, additionally, a chemical substance which retards setting is added.

IPC 1-7

E21F 17/00

IPC 8 full level

E21D 9/00 (2006.01)

CPC (source: EP)

E21D 9/002 (2013.01)

Designated contracting state (EPC)

BE FR GB

DOCDB simple family (publication)

EP 0008127 A1 19800220; EP 0008127 B1 19820414; DE 2835451 A1 19800228; DE 2835451 C2 19851024

DOCDB simple family (application)

EP 79102934 A 19790813; DE 2835451 A 19780812