Process of manufacturing fibreboards and pressings from lignocellulose material

Claim 1

A PROCESS FOR THE MANUFACTURE OF FIBREBOARDS AND OTHER MOLDED ARTICLES FROM FIBROUS LIGNOCELLULOSE MATERIAL, COMPRISING REDUCING SAID MATERIAL TO CHIPS, SUBJECTING THE CHIPS TO THE ACTION OF STEAM AT A PRESSURE RANGING FROM 1.5 TO 20 ATM., UNTIL SAID CHIPS CONTAIN AN AMOUNT OF WATERSOLUBLE CONSTITUENTS RANGING FROM 6 TO 30%, REDUCING THE STEAM-TREATED FIBROUS MATERIAL TO GREATER FINENESS, PREDRY ING THE FINE FIBROUS MATERIAL TO A MOISTURE CONTENT OF 2 TO 30% WHILE MAINTAINING SAID AMOUNT OF WATER-SOLUBLE CONSTITUENTS FROMING SAID PREDRIED FINE FIBROUS MATERIAL INTO A MAT WHILE MAINTAINIG SAID MOISTURE CONTENT AND SAID AMOUNT OF WATER-SOLUBLE CONSTITUENTS, SUBJECTING SAID MAT IN A CLOSED SPACE TO A CONSOLIDATING PRESSURE OF 25 TO 70 KILOGRAMS PER SQ. CENTIMETER AT A TEMPERATURE BETWEEN 180* AND 260*C., WHEREBY ADDITIONAL AMOUNTS OF WATERSOLUBLE CONSTITUENTS TEND TO FORM IN SAID MAT, AND RELEASING STEAM FROM SAID SPACE DURING THE APPLICATION OF SAID CONSOLIDATING PRESSURE AT A RATE SUFFICIENT TO MAINTAIN SAID AMOUNT OF WATER-SOLUBLE CONSTITUENTS BETWEEN 6 AND 30 PERCENT.