Stabilization of polyoxyalkylene polyether polyols

Details Stabilization of polyoxyalkylene polyether polyols Stabilization of polyoxyalkylene polyether polyols

1993-02-09

1993-12-07

Michl, Paul R.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521117, 521121, 521128, 524 89, 524120, 524128, 524153, 524258, 524291, 524349, C08K 518, C08K 534, C08K 546, C08K 549

Patent

active

052683940

ABSTRACT:
The invention relates to the use of an acridans of Structure (I) as a stabilizer, preferably combined with hindered amine, phenolic, and phosphite stabilizers for stabilizing polyether polyols for polyurethane flexible foams and as stabilizers for the polyglycols, heat transfer fluids, lubricating additives. ##STR1##

REFERENCES:
patent: 3567664 (1971-03-01), Haring
patent: 3637865 (1972-01-01), Haring
patent: 3798184 (1974-03-01), Cuscurida et al.
patent: 4010211 (1977-03-01), Preston
patent: 4130513 (1978-12-01), Reale et al.
patent: 4146687 (1979-03-01), Reale
patent: 4794126 (1988-12-01), Fiesman et al.
patent: 4933374 (1990-06-01), Suhoza et al.

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