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US4319030A Expired / Lapsed US ⏱️ 0.0 years remaining

Alkylated diaza-spirodecanes

Assignee: Hoechst AG
•
Filing: 1980-08-18
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Granted: 1982-03-09
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Expires: 2000-08-18
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Abstract

Abstract The invention provides derivatives of polyalkyl-1-oxa-diaza-spirodecanes prepared from compounds of the formula ##STR1## in which X is ##STR2## and mono- or dihalo-hydrocarbons by alkylation at the nitrogen atom of the 5-membered ring, and the salts thereof. The novel compounds are migration-resistant light stabilizers of low volatility for synthetic polymers.

Inventors

  • 👤 Hartmut Wiezer
  • 👤 Gerhard Pfahler
  • 👤 Harald Haberlein
  • 👤 Gunther Nowy

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 09:38
CPC Classifications
C; C07; C07D; C07D498/00; C07D498/02; C07D498/10; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/35

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 297 words
A polyalkyl-diaza-spirodecane of the formula ##STR8## in which X stands for a group of the formulae (II) or (III) ##STR9## the indices 3 and 4 indicating the ring positions in the diaza-spirodecane system, and the free valancy of the nitrogen atom producing the linkage with R 7 ; R 1 is hydrogen, oxygen or C 1 -C 12 -alkyl, R 2 and R 3 either are identical and represent hydrogen or a C 1 -C 4 -alkyl group, in which case R 4 is a methyl group; or R 2 is hydrogen or C 1 -C 5 -alkyl; and R 3 and R 4 , together with the carbon atoms to which they are linked, form a C 5 - and C 6 -cycloalkyl group or a group of the formula ##STR10## R 5 and R 6 are identical or different and represent hydrogen, C 1 -C 30 -alkyl, an unsubstituted phenyl or naphthyl group or a phenyl or naphthyl group substituted by chlorine or C 1 -C 4 -alkyl, or an unsubstituted C 7 -C 12 -phenylalkyl group or such a group substituted by C 1 -C 4 -alkyl, or R 5 and R 6 , together with the carbon atom linking them, form an unsubstituted C 5 -C 18 -cycloalkyl group or such a group substituted by up to four C 1 -C 4 -alkyl groups, or a group of the formula ##STR11## n is 2, and R 7 is an alkylene group having from 2 to 30 carbon atoms, an alkenylene group having from 2 to 30 carbon atoms, or a phenyldialkylene group having from 8 to 18 carbon atoms; and their salts with non-oxidizing mineral acids, aliphatic sulfonic or phosphonic acids, aliphatic mono-, di- or polycarboxylic acids, or aromatic mono- or polycarboxylic acids.
Claim 2
Dependent Claim 297 words
A polyalkyl-diaza-spirodecane of the formula ##STR8## in which X stands for a group of the formulae (II) or (III) ##STR9## the indices 3 and 4 indicating the ring positions in the diaza-spirodecane system, and the free valancy of the nitrogen atom producing the linkage with R 7 ; R 1 is hydrogen, oxygen or C 1 -C 12 -alkyl, R 2 and R 3 either are identical and represent hydrogen or a C 1 -C 4 -alkyl group, in which case R 4 is a methyl group; or R 2 is hydrogen or C 1 -C 5 -alkyl; and R 3 and R 4 , together with the carbon atoms to which they are linked, form a C 5 - and C 6 -cycloalkyl group or a group of the formula ##STR10## R 5 and R 6 are identical or different and represent hydrogen, C 1 -C 30 -alkyl, an unsubstituted phenyl or naphthyl group or a phenyl or naphthyl group substituted by chlorine or C 1 -C 4 -alkyl, or an unsubstituted C 7 -C 12 -phenylalkyl group or such a group substituted by C 1 -C 4 -alkyl, or R 5 and R 6 , together with the carbon atom linking them, form an unsubstituted C 5 -C 18 -cycloalkyl group or such a group substituted by up to four C 1 -C 4 -alkyl groups, or a group of the formula ##STR11## n is 2, and R 7 is an alkylene group having from 2 to 30 carbon atoms, an alkenylene group having from 2 to 30 carbon atoms, or a phenyldialkylene group having from 8 to 18 carbon atoms; and their salts with non-oxidizing mineral acids, aliphatic sulfonic or phosphonic acids, aliphatic mono-, di- or polycarboxylic acids, or aromatic mono- or polycarboxylic acids.

References Cited (Backward Citations)

US3708473A Cited
US4110334A Cited
US4220773A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1985-03-08 1985-09-07 1986-03-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1989-03-08 1989-09-07 1990-03-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1993-03-08 1993-09-07 1994-03-09 $7700.00 Window Closed / Lapsed

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