Stabilized polyoxyalkylene polyether polyol

Details Stabilized polyoxyalkylene polyether polyol Stabilized polyoxyalkylene polyether polyol

1979-08-29

1980-10-14

Schain, Howard E.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

260 457PH, 260 458NT, 260 459QB, 260 4595H, 521114, 521116, 521117, 521174, 521128, C08K 534, C08K 552

Patent

active

042282470

ABSTRACT:
Synergistic stabilizer combinations consisting of phenols such as 2,6,-di-t-butyl-4-methylphenol, amines such as 4,4'-bis(alpha,alpha- dimethylbenzyl)diphenylamine and p,p'-di-octyldiphenylamine, and phosphites such as phenyldidecylphosphite with 3,5-di-t-butyl-4-hydroxyhydrocinnamic acid triester of 1,3,5-tris(2-hydroxyethyl)-s-triazine-2,4,6-(1H,3H,5H-trione are employed as oxidative stabilizers for polyoxyalkylene polyether polyols and for the prevention of scorch in polyurethane foams prepared therefrom.

REFERENCES:
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patent: 3437694 (1969-04-01), Austin
patent: 3530127 (1970-09-01), Biland et al.
patent: 4007230 (1977-02-01), Hinze
patent: 4021385 (1977-05-01), Austin et al.
patent: 4080361 (1978-03-01), Wang et al.
patent: 4127515 (1978-11-01), MacRae
patent: 4162353 (1979-07-01), Papa et al.

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