发明授权
US3617201A Esterification of cellulosic textiles with sorbic acid in the presence of trifluoroacetic anhydride using controlled cellulose-acid-anhydride ratios
失效
在使用控制的纤维素 - 酸酐比例的三元酸酐存在下,使用异硫酸酯化纤维素纺织物
- 专利标题: Esterification of cellulosic textiles with sorbic acid in the presence of trifluoroacetic anhydride using controlled cellulose-acid-anhydride ratios
- 专利标题(中): 在使用控制的纤维素 - 酸酐比例的三元酸酐存在下,使用异硫酸酯化纤维素纺织物
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申请号: US3617201D申请日: 1969-11-19
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公开(公告)号: US3617201A公开(公告)日: 1971-11-02
- 发明人: BERNI RALPH J , BENERITO RUTH B , MCKELVEY JOHN B
- 申请人: US AGRICULTURE
- 专利权人: Us Agriculture
- 当前专利权人: Us Agriculture
- 优先权: US64330067 1967-05-26; US87820469 1969-11-19
- 主分类号: D06M13/203
- IPC分类号: D06M13/203 ; D06M13/213 ; D06M13/236 ; D06M13/20 ; C08B3/10
摘要:
This invention relates to the production of partial cellulose esters with improved crease recovery through esterification of cellulose with unsaturated fatty acids in the presence of trifluoroacetic anhydride (TFAA) in benzene solution.
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