US4569997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyalkylpiperidine compounds
Assignee: BASF Corp
•
Filing: 1983-09-29
•
Granted: 1986-02-11
•
Expires: 2003-09-29
Abstract
Abstract By reacting compounds of the formula ##STR1## with diisocyanates or triisocyanates of the formula R 4 (NCO) n at a low temperature, the corresponding 1-carbamyl compounds of the formula I ##STR2## in which n is 2 or 3 and R 1 , R 2 , R 3 and R 4 are as defined in claim 1, are obtained. The compounds of the formula 1 are light stabilizers for organic materials, especially for varnishes.
Inventors
- 👤 Friedrich Karrer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:46
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/16; C07D295/20; C07D295/215; C07D211/00; C07D211/04; C07D211/06; C07D211/36; C07D211/40; C07D211/44; C07D211/46; C07D471/00; C07D471/02; C07D471/10; C07D491/00; C07D491/02; C07D491/10; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3432; C08K5/3435; C08K5/3442; C08K5/3445; C08K5/35; C09; C09D; C09D7/00; C09D7/40; C09D7/48
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
358 words
A compound of the formula I ##STR34## in which n is 2 or 3, R 1 is hydrogen, R 2 is --OH, --OR 5 , --CH 2 COOR 6 , --CH 2 CN, --N(R 7 )--CO--R 8 , --O--CO--R 9 , --N(R 7 )--CO--O--R 10 , or --O--CO--N(R 7 ) 2 and R 3 is hydrogen, or R 2 and R 3 together are O═, 10 or a group of the formula II, III, IV, or V ##STR35## and, if n is 2, R 4 is C 2 -C 12 -alkylene, phenylene, naphthylene, tolylene or a group of the formula ##STR36## in which R 19 is hydrogen, methyl or ethyl and R 20 is hydrogen or methyl, and, if n is 3, R 4 is a group of the formula ##STR37## and R 5 is C 1 -C 12 -alkyl, C 3 -C 5 -alkenyl or benzyl, R 6 is C 1 -C 4 -alkyl or cyclohexyl, R 7 is C 1 -C 12 -alkyl, cyclohexyl, allyl or phenyl, R 8 and R 9 are C 1 -C 12 -alkyl, C 2 -C 3 -alkenyl, phenyl, benzyl or cyclohexyl, R 10 is C 1 -C 12 -alkyl or phenyl, R 12 is hydrogen, C 1 -C 12 -alkyl, C 5 -C 8 -cycloalkyl or benzyl and R 13 is C 1 -C 12 -alkyl, C 5 -C 8 -cycloalkyl or phenyl, or R 12 and R 13 , together with the C atom to which they are bonded, are a C 6 -C 14 -cycloalkane or alkylcycloalkane ring, R 14 is hydrogen, C 1 -C 12 -alkyl, C 3 -C 5 -alkenyl, C 5 -C 8 -cycloalkyl, C 2 -C 4 -hydroxyalkyl, C 2 -C 10 -alkanoyl, benzoyl, C 7 -C 12 -phenylalkyl or a group R--NH--CO--, in which R is C 1 -C 8 -alkyl or phenyl, R 15 is hydrogen, C 1 -C 18 -alkyl, C 3 -C 5 -alkenyl, C 2 -C 4 -hydroxyalkyl, C 5 -C 8 -cycloalkyl, C 1 -C 12 -phenylalkyl or glycidyl, R 16 is hydrogen or C 1 -C 4 -alkyl and R 17 is hydrogen, methyl, ethyl or hydroxymethyl.
Claim 2
Dependent Claim
358 words
A compound of the formula I ##STR34## in which n is 2 or 3, R 1 is hydrogen, R 2 is --OH, --OR 5 , --CH 2 COOR 6 , --CH 2 CN, --N(R 7 )--CO--R 8 , --O--CO--R 9 , --N(R 7 )--CO--O--R 10 , or --O--CO--N(R 7 ) 2 and R 3 is hydrogen, or R 2 and R 3 together are O═, 10 or a group of the formula II, III, IV, or V ##STR35## and, if n is 2, R 4 is C 2 -C 12 -alkylene, phenylene, naphthylene, tolylene or a group of the formula ##STR36## in which R 19 is hydrogen, methyl or ethyl and R 20 is hydrogen or methyl, and, if n is 3, R 4 is a group of the formula ##STR37## and R 5 is C 1 -C 12 -alkyl, C 3 -C 5 -alkenyl or benzyl, R 6 is C 1 -C 4 -alkyl or cyclohexyl, R 7 is C 1 -C 12 -alkyl, cyclohexyl, allyl or phenyl, R 8 and R 9 are C 1 -C 12 -alkyl, C 2 -C 3 -alkenyl, phenyl, benzyl or cyclohexyl, R 10 is C 1 -C 12 -alkyl or phenyl, R 12 is hydrogen, C 1 -C 12 -alkyl, C 5 -C 8 -cycloalkyl or benzyl and R 13 is C 1 -C 12 -alkyl, C 5 -C 8 -cycloalkyl or phenyl, or R 12 and R 13 , together with the C atom to which they are bonded, are a C 6 -C 14 -cycloalkane or alkylcycloalkane ring, R 14 is hydrogen, C 1 -C 12 -alkyl, C 3 -C 5 -alkenyl, C 5 -C 8 -cycloalkyl, C 2 -C 4 -hydroxyalkyl, C 2 -C 10 -alkanoyl, benzoyl, C 7 -C 12 -phenylalkyl or a group R--NH--CO--, in which R is C 1 -C 8 -alkyl or phenyl, R 15 is hydrogen, C 1 -C 18 -alkyl, C 3 -C 5 -alkenyl, C 2 -C 4 -hydroxyalkyl, C 5 -C 8 -cycloalkyl, C 1 -C 12 -phenylalkyl or glycidyl, R 16 is hydrogen or C 1 -C 4 -alkyl and R 17 is hydrogen, methyl, ethyl or hydroxymethyl.
Claim 3
Dependent Claim
7 words
The compound ##STR38## according to claim 1.
Claim 4
Dependent Claim
7 words
The compound ##STR39## according to claim 1.
Claim 5
Dependent Claim
7 words
The compound ##STR40## according to claim 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-10 | 1989-08-12 | 1990-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-10 | 1993-08-12 | 1994-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-10 | 1997-08-12 | 1998-02-11 | $7700.00 | Window Closed / Lapsed |