Process for preparing oligomeric aliphatic diols,...

Details Process for preparing oligomeric aliphatic diols,... Process for preparing oligomeric aliphatic diols,...

2005-12-20

2005-12-20

Gorr, Rachel (Department: 1711)

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...

C528S059000, C528S370000, C528S371000, C528S425000, C568S698000, C568S699000

Reexamination Certificate

active

06977290

ABSTRACT:
The present invention relates to a method for preparing oligomeric aliphatic diols, polycarbonatediols based thereon and NCO-terminated prepolymers obtainable therefrom. The inventive compounds may find use in the preparation of polyurethanes.

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Research Disclosure; RD 484004; Catalyst Removal form Polyether Polols using Brine Extraction; Aug. 2004.
Angew. Chem. 92 (month unavailable0 1980, pp. 742-743, Peter Ball et al, “Carbonate und Polycabonate aus Hamstoff und Alkohol”.

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