PROCESS FOR PRODUCING N,N'-BRIDGED BIS-TETRAMETHYL PIPERIDINYL COMPOUNDS
PCT No. PCT/EP95/00205 Sec. 371 Date Jul. 9, 1996 Sec. 102(e) Date Jul. 9, 1996 PCT Filed Jan. 20, 1995 PCT Pub. No. WO95/21157 PCT Pub. Date Aug. 10, 1995N,N'-bridged bistetramethylpiperidinyl compounds of Formula I (I) useful as light stabilizers and stabilizers for organic material which are...
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Zusammenfassung: | PCT No. PCT/EP95/00205 Sec. 371 Date Jul. 9, 1996 Sec. 102(e) Date Jul. 9, 1996 PCT Filed Jan. 20, 1995 PCT Pub. No. WO95/21157 PCT Pub. Date Aug. 10, 1995N,N'-bridged bistetramethylpiperidinyl compounds of Formula I (I) useful as light stabilizers and stabilizers for organic material which are prepared starting from tetramethylpiperidinyl compounds of Formula II (II) by reacting a compound of Formula II with a cyclic carbonate of Formula III. (III) |
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