Chroman derivatives useful as stabilizers for polypropylene and

Details Chroman derivatives useful as stabilizers for polypropylene and Chroman derivatives useful as stabilizers for polypropylene and

1982-01-28

1983-09-13

Chan, Nicky

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

Synthetic resins

Processes of preparing a desired or intentional composition...

585 3, 549408, C07D31172, C08K 509

Patent

active

044043040

ABSTRACT:
Novel chroman derivatives ##STR1## where R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are each H or C.sub.1 -C.sub.4 -alkyl, R.sup.6 and R.sup.7 are each H, C.sub.1 -C.sub.4 -alkyl or aryl, m is 1, 2 or 3, and R.sup.8 is alkyl or alkenyl of up to 30 carbon atoms, the preparation of these compounds, and their use as stabilizers for organic materials.

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