Amine-initiated polyether polyols and a process for their produc

Details Amine-initiated polyether polyols and a process for their produc Amine-initiated polyether polyols and a process for their produc

1996-11-01

1998-07-28

Sergent, Rabon

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521117, 521130, 521164, 564399, 564443, 564445, 564475, 564504, 564505, C08J 904, C08G 1850, C07C21304, C07C21504

Patent

active

057864055

ABSTRACT:
Clear, amine-initiated polyether polyols are made by epoxidizing an amine in the presence of an alkali metal hydroxide catalyst. After the desired degree of epoxidation has been achieved, a hydroxy-carboxylic acid is added to the epoxidized mixture in an amount sufficient to neutralize any remaining alkali metal hydroxide. The polyols produced in this manner are particularly useful for the production of polyurethane and apolyisocyanurate foams.

REFERENCES:
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patent: 4391728 (1983-07-01), Korczak et al.
patent: 4430490 (1984-02-01), Doerge
patent: 4521548 (1985-06-01), Christen et al.
patent: 4877879 (1989-10-01), Gansow
patent: 5030758 (1991-07-01), Dietrich et al.
patent: 5141968 (1992-08-01), Dietrich et al.
patent: 5254745 (1993-10-01), Jahme

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