Process for preparing crystalline, non-dusting bis(2,2,6,6-tetra

Details Process for preparing crystalline, non-dusting bis(2,2,6,6-tetra Process for preparing crystalline, non-dusting bis(2,2,6,6-tetra

1982-02-11

1983-08-02

Bond, Robert T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D21146

Patent

active

043967698

ABSTRACT:
Crystalline, non-dusting bis(2,2,6,6-tetramethylpiperidin-4-yl) sebacate is made by heating the sebacate ester to a temperature above its melting point and then slowly cooling the melt with agitation to form the product in a crystalline, non-dusting form. This ester, also known as TINUVIN 770, is a valuable commercial light stabilizer for a myriad of substrates.

REFERENCES:
patent: 3640928 (1972-02-01), Murayama et al.
Weissburger, "Technique of Organic Chemistry", vol. III, pp. 445-451 (1950), (Interscience).

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