Invention Grant
- Patent Title: Process for preparing polysaccharide fibers from aqueous alkali metal hydroxide solution
- Patent Title (中): 从碱金属氢氧化物水溶液中制备多糖纤维的方法
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Application No.: US13333501Application Date: 2011-12-21
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Publication No.: US09334584B2Publication Date: 2016-05-10
- Inventor: John P. O'Brien , Kathleen Opper
- Applicant: John P. O'Brien , Kathleen Opper
- Applicant Address: US DE Wilmington
- Assignee: E I DU PONT DE NEMOURS AND COMPANY
- Current Assignee: E I DU PONT DE NEMOURS AND COMPANY
- Current Assignee Address: US DE Wilmington
- Main IPC: C08B9/00
- IPC: C08B9/00 ; C08B37/00 ; D01D5/06 ; D01F9/00
Abstract:
This invention pertains to a novel processing for preparing fibers from poly(α(1→3)glucan). The fibers prepared according to the invention, have “cotton-like” properties, are useful in textile applications, and can be produced as continuous filaments on a year-round basis. The process comprises solution spinning a 5-20% solids concentration of poly(α(1→3)glucan) in an aqueous alkali metal hydroxide, in particular NaOH at concentration of 2 to 10 weight-%, and coagulating the spun fiber in an acid coagulation liquid.
Public/Granted literature
- US20130161861A1 PROCESS FOR PREPARING POLYSACCHARIDE FIBERS FROM AQUEOUS ALKALI METAL HYDROXIDE SOLUTION Public/Granted day:2013-06-27
Information query
