Polyurethaneureas and spandex made therefrom

Details Polyurethaneureas and spandex made therefrom Polyurethaneureas and spandex made therefrom

1998-03-26

1999-09-07

Gorr, Rachel

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 76, 528906, C08G 1832

Patent

active

059488751

ABSTRACT:
New polyurethaneurea polymers and spandex made therefrom, based on certain glycols, MDI and a diamine chain extender mixture containing high proportions of 2-methyl-1,5-pentanediamine and prepared at selected capping ratios, are provided.

REFERENCES:
patent: 4973647 (1990-11-01), Bretches et al.
patent: 5000899 (1991-03-01), Dreibelbis et al.

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