Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1995-04-18
1996-10-15
Johnson, Rachel
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
528 73, 528906, 26417713, 26417719, C08G 1877
Patent
active
055652700
ABSTRACT:
The invention relates to a process for the solventless production of elastic filaments based on segmented poly(urethane)s or poly(urethane urea)s having improved thermal properties and, hence, improved processing behavior, for example during the heat setting of fabrics containing the elastic fibers, by the use of a polyisocyanate containing isocyanurate groups in the reaction of long-chain, relatively high molecular weight polyhydroxyl compounds with organic diisocyanates and low molecular weight diols and, optionally, other auxiliaries and additives in the melt, direct spinning of the reaction mixture thus obtained and thermal aftertreatment of the elastic filaments obtained and also to the filaments obtainable by this process.
REFERENCES:
patent: 3719708 (1973-03-01), Thoma et al.
patent: 4788224 (1988-11-01), Muller et al.
H. Grunewald, Textilproxis International vol. 36, pp. 839-841 (1981).
D. Oertel, Chemiefaser/Testilindustrie vol. 28/80, No. 1/78, pp. 44-49 (1978).
Houben-Wegl, "Methoden der organischen Chemie", vol. E20, Markromolekulare Stoffe, ed. H. Bartl, et al., pp. 1739-1748 George Thieme Verlag, New York (1987).
K. Schauerte, Kanststoff-Handbuch, 2nd ed, vol. VII, ed. Oertel, pp. 63-74 Carl-Hanser-Verlog, Munich (1983).
Chemical Abstracts, vol. 72, No. 6, Abstract No. 22527r, (1970).
Behrens Hans-Josef
Haug Erich
M uller Hanns-Peter
Meyer Rolf-Volker
Rehbold Bodo
Bayer Aktiengesellschaft
Johnson Rachel
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