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US4546148A
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Polymeric compounds, containing piperidine radicals, a process for their preparation, and their use as stabilizers for synthetic polymers
Assignee: Novartis Corp
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Filing: 1984-07-19
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Granted: 1985-10-08
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Expires: 2004-07-19
Abstract
Abstract Novel polycondensed compounds containing piperidine groups of polycarbamate structure, of the general formula: ##STR1##
Inventors
- 👤 Giuseppe Cantatore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:25
CPC Classifications
C; C08; C08G; C08G71/00; C08G71/04; C08L; C08L57/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
206 words
A compound of the formula I ##STR21## in which R 1 is hydrogen, O-, cyanomethyl, C 1 -C 12 -alkyl, C 3 -C 12 -alkenyl or -alkynyl, C 7 -C 12 -aralkyl, C 1 -C 12 -acyl, 2,3-epoxypropyl or ##STR22## wherein R 5 is hydrogen, methyl, ethyl or phenyl, R 2 is C 2 -C 12 -alkylene, C 4 -C 18 -alkylene substituted by 1 to 2 oxygen or nitrogen atoms, C 6 -C 12 -cycloalkylene, C 6 -C 12 -Arylene or C 8 -C 12 -aralkylene, R 3 is hydrogen, C 1 -C 18 -alkyl, C 5 -C 18 -cycloalkyl, C 6 -C 18 -aryl, C 7 -C 18 -aralkyl or a radical of the formula (II) ##STR23## where R 1 is as defined above, R 4 is C 2 -C 18 -alkylene, C 4 -C 12 -alkylene substituted by 1 or 2 oxygen atoms, C 6 -C 18 -cycloalkylene, C 6 -C 18 -arylene, C 8 -C 18 -aralkylene or a radical of the formula (III) of (IV) ##STR24## wherein R 5 is as defined above and R 6 C 2 -C 12 -alkylene, C 4 -C 12 -alkenylene or C 8 -C 12 -aralkylene, and n is a number from 2 to 100.
Claim 2
Dependent Claim
206 words
A compound of the formula I ##STR21## in which R 1 is hydrogen, O-, cyanomethyl, C 1 -C 12 -alkyl, C 3 -C 12 -alkenyl or -alkynyl, C 7 -C 12 -aralkyl, C 1 -C 12 -acyl, 2,3-epoxypropyl or ##STR22## wherein R 5 is hydrogen, methyl, ethyl or phenyl, R 2 is C 2 -C 12 -alkylene, C 4 -C 18 -alkylene substituted by 1 to 2 oxygen or nitrogen atoms, C 6 -C 12 -cycloalkylene, C 6 -C 12 -Arylene or C 8 -C 12 -aralkylene, R 3 is hydrogen, C 1 -C 18 -alkyl, C 5 -C 18 -cycloalkyl, C 6 -C 18 -aryl, C 7 -C 18 -aralkyl or a radical of the formula (II) ##STR23## where R 1 is as defined above, R 4 is C 2 -C 18 -alkylene, C 4 -C 12 -alkylene substituted by 1 or 2 oxygen atoms, C 6 -C 18 -cycloalkylene, C 6 -C 18 -arylene, C 8 -C 18 -aralkylene or a radical of the formula (III) of (IV) ##STR24## wherein R 5 is as defined above and R 6 C 2 -C 12 -alkylene, C 4 -C 12 -alkenylene or C 8 -C 12 -aralkylene, and n is a number from 2 to 100.
Claim 3
Dependent Claim
110 words
A compound of the formula (I) according to claim 1, wherein R 1 is hydrogen, methyl, allyl, benzyl or acetyl, R 2 is C 2 -C 12 -alkylene, R 3 is C 1 -C 12 -alkyl, C 5 -C 12 -cycloalkyl or a radical of the formula (II) where R 1 is as defined, R 4 is C 2 -C 12 -alkylene, 3-oxapentane-1,5-diyl, C 6 -C 10 -cycloalkylene, a radical of the formula (III) where R 5 is hydrogen, methyl or ethyl, or a radical of the formula (IV) where R 6 is C 2 -C 6 -alkylene, but-2-ene-1,4-diyl or xylylene, and n is a number from 2 to 50.
Claim 4
Dependent Claim
83 words
A compound of the formula (I) according to claim 1, wherein R 1 is hydrogen or methyl, R 2 is C 2 -C 6 -alkylene, R 3 is C 1 -C 8 alkyl, C 6 -C 9 -cycloalkyl, 2,2,6,6-tetramethyl-piperidin-4-yl or 1,2,2,6,6-pentamethyl-piperidin-4-yl, R 4 is C 2 -C 6 -alkylene, a radical of the formula (III) where R 5 is hydrogen or methyl, or a radical of the formula (IV) where R 6 is xylylene, and n is a number from 2 to 20.
Claim 5
Dependent Claim
41 words
A light-stabilised, heat-stabilised and oxidation-stabilised polymer composition comprising a synthetic polymer and one or more stabilisers of the formula (I) according to claim 1 in a quantity from 0.01 to 5% by weight relative to the weight of the synthetic polymer.
Claim 6
Dependent Claim
24 words
A composition according to claim 4, which, in addition to the novel stabiliser of the formula (I), comprises other conventional additives for synthetic polymers.
Claim 7
Dependent Claim
14 words
A composition according to claim 4, wherein the synthetic polymer is polyethylene of polypropylene.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1988-10-07 | 1989-04-08 | 1989-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-07 | 1993-04-08 | 1993-10-08 | $3760.00 | Window Closed / Lapsed |
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