专利名称：Molecular weight reduction of
polysaccharides by electron beams
发明人：Leo Zhaoqing Liu,Christian Priou申请号：US10606256申请日：20030624
公开号：US20040072699A1公开日：20040415
摘要：A method of depolymerizing galactomannan-type polysaccharide polymers andxanthan, preferably galactomannans, to a pre-selected lower molecular weight byirradiation with high energy electron beams. The preferred galactomannans for
treatment according to this method are guar gum, guar splits and hydroxypropyl guar. Ina preferred embodiment the guar gum is depolymerized preferably to a molecularweight of about 150,000 Daltons to about 200,000 Daltons. The depolymerized guar hasa polydispersity of less than about 3.0 and is useful in oil well fracturing to enhance oilproduction.
申请人：LIU LEO ZHAOQING,PRIOU CHRISTIAN
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