Title:
CELLULOSE FILAMENTS WITH IMPROVED THERMOSTABILITY
Document Type and Number:
WIPO Patent Application WO/2013/144261
Kind Code:
A3
Abstract:
The invention relates to a cellulose fiber coated with a coating agent which contains a mixture comprising urea, nonionic surfactants, and antioxidants. The coated cellulose fiber is characterized in that the tensile strength of said fiber is up to four times greater than the tensile strength of the corresponding uncoated cellulose fiber after a defined thermal aging process. The average degree of polymerization of the coated cellulose fiber material is up to six times greater than the remaining degree of polymerization of an uncoated cellulose fiber after the same aging procedure. The invention further relates to thermal aging methods for identifying effective stabilizers and for characterizing coated cellulose fibers and filaments with improved thermostability.
Inventors:
MOESSINGER DENNIS (DE)
ZIMMERER BRITTA (DE)
UIHLEIN KURT (DE)
ZENGEL ALFRED (DE)
EINSIEDEL RUDOLF (DE)
KIESLING FRANK (DE)
ZIMMERER BRITTA (DE)
UIHLEIN KURT (DE)
ZENGEL ALFRED (DE)
EINSIEDEL RUDOLF (DE)
KIESLING FRANK (DE)
Application Number:
PCT/EP2013/056629
Publication Date:
November 14, 2013
Filing Date:
March 27, 2013
Export Citation:
Assignee:
CORDENKA GMBH & CO KG (DE)
International Classes:
B29D30/40; D06M13/144; C08J5/06; D01F11/02; D02G3/48; D06B1/00; D06M13/17; D06M13/432; D06M101/06
Foreign References:
| GB545716A | 1942-06-09 | |||
| US2278285A | 1942-03-31 | |||
| US2964470A | 1960-12-13 | |||
| GB801300A | 1958-09-10 | |||
| DE1769067A1 | 1971-08-12 |
Attorney, Agent or Firm:
OBERLEIN, Gerriet (Kasinostrasse 19-21, Wuppertal, DE)
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