US4339383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Imide containing stabilizers for chlorinated thermoplastics
Assignee: BASF Corp
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Filing: 1980-07-02
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Granted: 1982-07-13
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Expires: 2000-07-02
Abstract
Abstract The invention relates to alkanolamido- beta -carboxylic acid esters of the formula I <IMAGE> (I) A full definition of the above formula will be found in claim 1 of the specification. These compounds are useful stabilizers for chlorinated thermoplastics.
Inventors
- 👤 Wolfgang Wehner
- 👤 Klaus-Peter Michaelis
- 👤 Rainer Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:06
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/44; C07D209/48; C07C; C07C61/00; C07C61/16; C07C61/39; C07D209/56; C07D209/58; C07D209/72; C07D209/76; C07D251/00; C07D251/02; C07D251/12; C07D251/26; C07D251/30; C07D251/34; C07D487/00; C07D487/02; C07D487/04; C08; C08K; C08K5/00; C08K5/16; C08K5/20; C08K5/34
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
216 words
A compound of the formula ##STR36## wherein n is an integer from 1 to 2, R is C 1 -C 24 alkyl or phenyl, each of R 1 and R 2 independently is hydrogen or R, and X is C 1 -C 6 alkylene or C 2 -C 6 alkylene having oxygen between any two adjacent carbon atoms and, if n is 1, A is ##STR37## wherein Q is a group of --Z--CO, wherein the carbonyl group is attached to the nitrogen of the formula II, and Z is o-phenylene which can be substituted by a group --CON(R 6 )R 7 , --COOR 8 or --COSR 8 , or by 4 halogen atoms, R 6 and R 7 are the same or different and are hydrogen or C 1 -C 12 -alkyl and R 8 is C 1 -C 12 alkyl, and, if n is 2, A is one of the groups of the formulae ##STR38## wherein Y can be --O-- or --NH--, B is C 1 -C 6 alkylene, p-phenylene or one of the groups [--CH 2 -- q O] r (CH 2 -- q or [(CH 2 -- q S] r (CH 2 -- q , wherein q is an integer from 1 to 4 and r is an integer from 1 to 3.
Claim 2
Dependent Claim
216 words
A compound of the formula ##STR36## wherein n is an integer from 1 to 2, R is C 1 -C 24 alkyl or phenyl, each of R 1 and R 2 independently is hydrogen or R, and X is C 1 -C 6 alkylene or C 2 -C 6 alkylene having oxygen between any two adjacent carbon atoms and, if n is 1, A is ##STR37## wherein Q is a group of --Z--CO, wherein the carbonyl group is attached to the nitrogen of the formula II, and Z is o-phenylene which can be substituted by a group --CON(R 6 )R 7 , --COOR 8 or --COSR 8 , or by 4 halogen atoms, R 6 and R 7 are the same or different and are hydrogen or C 1 -C 12 -alkyl and R 8 is C 1 -C 12 alkyl, and, if n is 2, A is one of the groups of the formulae ##STR38## wherein Y can be --O-- or --NH--, B is C 1 -C 6 alkylene, p-phenylene or one of the groups [--CH 2 -- q O] r (CH 2 -- q or [(CH 2 -- q S] r (CH 2 -- q , wherein q is an integer from 1 to 4 and r is an integer from 1 to 3.
Claim 3
Dependent Claim
65 words
A compound according to claim 1 of the formula I, wherein n is 1 or 2, R is methyl or phenyl, R 1 and R 2 are hydrogen, and X is C 2 -C 3 alkylene or a group --CH 2 CH 2 O--CH 2 CH 2 , and if n is 2, A is one of the groups of the formulae IX or XI.
Claim 4
Dependent Claim
57 words
A compound according to claim 1 of the formula I, wherein R is methyl and X is C 2 -C 3 alkylene, n is 1 or 2, and, if n is 1, A is a group of the formula ##STR39## and, if n is 2, A is one of the groups of the formulae IX or XI.
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) | 1985-07-12 | 1986-01-11 | 1986-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-12 | 1990-01-11 | 1990-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-12 | 1994-01-11 | 1994-07-13 | $7700.00 | Window Closed / Lapsed |