Reducing the crystallinity of native fibrous cellulosic material
First Claim
1. A PROCESS OF REDUCING THE DEGREE OF CRYSTALLINITY OF A NATIVE FIBROUS CELLULOSIC MATERIAL WITH NO SUBSTANTIAL CHEMICAL DEGRADATION AND IMPAIRMENT OFF THE FIBROUS STRUCTURE COMPRISING IMMERSING THE CELLULOSIC MATERIAL IN A LIQUID TREATING AGENT SELECTED FROM THE GROUP CONSISTING OF AN ANHYDROUS PRIMARY ALKYLAMINE CONTAINING FROM 1 TO 2 CARBON ATOMS, AND A MIXTURE OF AT LEAST 50% BY WEIGHT OF AN ANHYDROUS PRIMARY ALKYLAMINE CONTAINING FROM 1 TO 2 CARBON ATOMS AND AN ANHYDROUS PRIMARY ALKYLAMINE CONTAINING FROM 6 TO 7 CARBON ATOMS, MECHANICALLY SEPARATING A SUBSTANTIAL AMOUNT OF THE TREATING AGENT FROM THE TREATMENT MATERIAL, AND SEPARATING SUBSTANTIALLY ALL OF THE REMAINING TREATING AGENT BY EXTRACTION WITH A NON-POLAR ORGANIC SOLVENT.
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1 Claim
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1. A PROCESS OF REDUCING THE DEGREE OF CRYSTALLINITY OF A NATIVE FIBROUS CELLULOSIC MATERIAL WITH NO SUBSTANTIAL CHEMICAL DEGRADATION AND IMPAIRMENT OFF THE FIBROUS STRUCTURE COMPRISING IMMERSING THE CELLULOSIC MATERIAL IN A LIQUID TREATING AGENT SELECTED FROM THE GROUP CONSISTING OF AN ANHYDROUS PRIMARY ALKYLAMINE CONTAINING FROM 1 TO 2 CARBON ATOMS, AND A MIXTURE OF AT LEAST 50% BY WEIGHT OF AN ANHYDROUS PRIMARY ALKYLAMINE CONTAINING FROM 1 TO 2 CARBON ATOMS AND AN ANHYDROUS PRIMARY ALKYLAMINE CONTAINING FROM 6 TO 7 CARBON ATOMS, MECHANICALLY SEPARATING A SUBSTANTIAL AMOUNT OF THE TREATING AGENT FROM THE TREATMENT MATERIAL, AND SEPARATING SUBSTANTIALLY ALL OF THE REMAINING TREATING AGENT BY EXTRACTION WITH A NON-POLAR ORGANIC SOLVENT.
Specification
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Current AssigneeCarl M. Conrad, Leon Segal, Ward J.R. Kyle
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Original AssigneeCarl M. Conrad, Leon Segal, Ward J.R. Kyle
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InventorsWARD JR KYLE, Conrad, Carl M., Segal, Leon
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Application NumberUS03/178,339Time in Patent Office511 DaysField of SearchUS Class Current536/56CPC Class CodesD06M 13/325 Amines
