US4087404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers stabilized with substituted 2-(piperidinyl-4')-ethyl alcohol and salts thereof
Assignee: Novartis Corp
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Filing: 1976-05-19
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Granted: 1978-05-02
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Expires: 1996-05-19
Abstract
Abstract A composition comprising an organic material and, as stabiliser, a compound having the formula ##STR1## and salts thereof, wherein R 1 and R 2 are the same or different and each is an alkyl residue having from 1 to 12 carbon atoms or R 1 and R 2 , together with the carbon atom to which they are bound, form a cycloalkyl residue having from 5 to 12 carbon atoms in the ring, Y is 0, hydrogen, a straight-or branched alkyl residue having from 1 to 20 carbon atoms, an alkenyl or alkynyl residue having from 3 to 12 carbon atoms, an aralkyl residue having from 7 to 12 carbon atoms or a group having the formula ##STR2## wherein R is hydrogen, or a methyl or phenyl residue and R 3 is hydrogen or a straight- or branched chain alkyl residue having from 1 to 12 carbon atoms.
Inventors
- 👤 Barry Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:55
CPC Classifications
C; C07; C07D; C07D221/00; C07D221/02; C07D221/20; C07D211/00; C07D211/04; C07D211/06; C07D211/08; C07D211/18; C07D211/20; C07D211/22; C07D211/92; C07D211/94; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3432; C08K5/3435; C09; C09K; C09K15/00; C09K15/04; C09K15/30
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
153 words
A composition comprising an organic material and, as stabiliser, a stabilizing amount of a compound having the formula: ##STR21## and salts thereof, wherein R 1 and R 2 are the same or different and each is an alkyl residue having from 1 to 12 carbon atoms or R 1 and R 2 , together with the carbon atom to which they are bound, form a cycloalkyl residue having from 5 to 12 carbon atoms in the ring, Y is O; hydrogen, a straight- or branched alkyl residue having from 1 to 20 carbon atoms, an alkenyl or alkynyl residue having from 3 to 12 carbon atoms, an aralkyl residue having from 7 to 12 carbon atoms or a group having the formula: ##STR22## wherein R is hydrogen, or a methyl or phenyl residue and R 3 is hydrogen or a straight- or branched chain alkyl residue having from 1 to 12 carbon atoms.
Claim 2
Dependent Claim
153 words
A composition comprising an organic material and, as stabiliser, a stabilizing amount of a compound having the formula: ##STR21## and salts thereof, wherein R 1 and R 2 are the same or different and each is an alkyl residue having from 1 to 12 carbon atoms or R 1 and R 2 , together with the carbon atom to which they are bound, form a cycloalkyl residue having from 5 to 12 carbon atoms in the ring, Y is O; hydrogen, a straight- or branched alkyl residue having from 1 to 20 carbon atoms, an alkenyl or alkynyl residue having from 3 to 12 carbon atoms, an aralkyl residue having from 7 to 12 carbon atoms or a group having the formula: ##STR22## wherein R is hydrogen, or a methyl or phenyl residue and R 3 is hydrogen or a straight- or branched chain alkyl residue having from 1 to 12 carbon atoms.
Claim 3
Dependent Claim
18 words
A composition as claimed in claim 1 wherein R 1 and R 2 are each a methyl residue.
Claim 4
Dependent Claim
16 words
A composition as claimed in claim 1 wherein Y is a methyl residue, hydrogen or O.
Claim 5
Dependent Claim
12 words
A composition as claimed in claim 1 wherein R 3 is hydrogen.
Claim 6
Dependent Claim
25 words
A composition as claimed in claim 1 wherein the salt is a phosphate, carbonate, chloride, acetate, stearate, maleate, citrate, tartrate, oxalate, benzoate or substituted carbamate.
Claim 7
Dependent Claim
40 words
A composition as claimed in claim 1 wherein the organic material is low- or high density polyethylene or polypropylene, polystyrene, a polymer of butene-1, pentene-1, 3-methylbutene-1, hexene-1, 4-methylpentene-1, 4-methylhexene-1, 4,4-dimethylpentene-1 or a co- or ter- polymer of ethylene or propylene.
Claim 8
Dependent Claim
17 words
A composition as claimed in claim 1 wherein the organic material is a natural or synthetic polymer.
Claim 9
Dependent Claim
41 words
A composition as claimed in claim 7 wherein the synthetic polymer is polyvinyl chloride, polyvinylidene chloride, a vinyl chloride copolymer, polyvinyl acetate or a condensation polymer derived from ether, ester derived from carboxylic, sulphonic or carbonic acids amide or urethane compounds.
Claim 10
Dependent Claim
35 words
A composition as claimed in claim 1 wherein the amount of the compound of formula I is within the range of from 0.1% to 2% by weight based on the weight of untreated organic material.
Claim 11
Dependent Claim
35 words
A composition as claimed in claim 1 wherein the composition consists of a binary, tertiary or multi-component composition containing, as stabiliser, a compound of formula I together with one or more functional additives for polymers.
Claim 12
Dependent Claim
29 words
A composition as claimed in claim 10 wherein the functional additive is an antioxidant of the phenol or amine type, a U.V. absorber or light protectant, a phosphite stabiliser.
Claim 13
Dependent Claim
30 words
A composition as claimed in claim 7 wherein the synthetic polymer is a polyvinyl acetal, a polyacrylate, a polyamide, a urea- formaldehyde or melamine- formaldehyde resin or a cellulose plastic.
Claim 14
Dependent Claim
14 words
A composition as claimed in claim 1 comprising polypropylene and the stabilizer 2-(2',2',6',6',6'-tetra-methylpiperidinyl-4')-ethyl alcohol.
References Cited (Backward Citations)
GB1398414A
Cited
GB1398412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-01 | 1981-10-31 | 1982-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-01 | 1985-10-31 | 1986-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-01 | 1989-10-31 | 1990-05-02 | $7700.00 | Window Closed / Lapsed |