D - Textiles – Paper – 21 – B
Patent
D - Textiles, Paper
21
B
260/133
D21B 1/36 (2006.01) D21C 3/02 (2006.01) D21C 3/04 (2006.01) D21C 3/20 (2006.01) C07G 1/00 (2006.01) C08H 6/00 (2010.01)
Patent
CA 1278294
Abstract The chemical components of lignocellulosic material which have been dissociated by a steam explosion process can be extracted from the mixture of components using a solvent extraction process. The solvents are water, alcohol and a mild caustic in that order, or the alcohol step can be by-passed and only water and caustic are used. The caustic is a stronger solvent and it will extract the alcohol solubles along with the caustic only solubles. The eluant from the these extractions contains a range of lignin derived substances, which have different applications, such as thermoplastic and thermosetting characteristics. This invention describes a method for partitioning these lignin components into reproducible fractions having definable characteristics for particular applications. For instance, many copolymer applications require a thermosetting only fraction of the lignin. Other applications require a thermoplastic only lignin. The patent also describes a process for converting the thermoplastic lignin fraction to thermosetting lignin.
547109
de Long Edward A.
Ritchie George S.
Cassan Maclean
Michael Cash Sherriff
LandOfFree
Method for fractionation of lignins from steam exploded... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for fractionation of lignins from steam exploded..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for fractionation of lignins from steam exploded... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1203961