Stabilized polyurethane compositions

Details Stabilized polyurethane compositions Stabilized polyurethane compositions

1986-03-31

1988-01-26

Kight, John

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524108, 524103, 524102, 524100, 524120, C08K 534, C08K 549

Patent

active

047217448

ABSTRACT:
Polyurethanes are stabilized against yellowing by incorporating a phenolic type compound represented by the general formula (I) ##STR1## wherein R.sub.1 represents a C.sub.1 -C.sub.3 alkyl group and at least one member selected from a benzotriazole type light stabilizer and a hindered amine type stabilizer.

REFERENCES:
patent: 4507417 (1985-03-01), Ishii et al.
patent: 4576734 (1986-03-01), Ishii et al.
Chemical Abstracts, 101, vol. 2, No. 8213w.

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