US5236981A
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US
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Stabilized halogenated polymer compositions containing a lead or organotin compound
Assignee: Rhodia Chimie SAS
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Filing: 1992-04-09
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Granted: 1993-08-17
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Expires: 2012-04-09
Abstract
Abstract The present invention relates to new stabilized compositions based on halogenated polymer and more specifically on chlorinated polymer. It relates more particularly to stabilized compositions based on chlorinated polymer, which are characterized in that they contain: a) an effective quantity of at least one lead compound or of at least one organostannic compound, and b) an effective quantity of at least one essentially amorphous basic aluminum magnesium carbonate denoted by the formula (I): (MgO).sub.y.Al.sub.2 O.sub.3.(CO.sub.2).sub.x.(H.sub.2 O).sub.z (I).
Inventors
- 👤 Mireille Arfiche
- 👤 Louis Carette
- 👤 Pierre Pena Porta
- 👤 Francois Pouenat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:39
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/56; C08K5/57; C08K3/00; C08K3/18; C08K3/24; C08K3/26
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
88 words
Stabilized compositions based on chlorinated polymer comprising: a) an effective amount of at least one lead compound or of at least one organostannic compound, and b) an effective amount of at least one essentially amorphous basic aluminum magnesium carbonate represented by formula (I): (MgO).sub.y.Al.sub.2 O.sub.3.(CO.sub.2).sub.x.(H.sub.2 O).sub.z (I) wherein: y denotes, in moles, a whole or fractional number such that y≦1.7, x denotes, in moles, a whole or fractional number such that x≦0.7, and z denotes, in moles, a whole or fractional number greater than or equal to 3.
Claim 2
Dependent Claim
88 words
Stabilized compositions based on chlorinated polymer comprising: a) an effective amount of at least one lead compound or of at least one organostannic compound, and b) an effective amount of at least one essentially amorphous basic aluminum magnesium carbonate represented by formula (I): (MgO).sub.y.Al.sub.2 O.sub.3.(CO.sub.2).sub.x.(H.sub.2 O).sub.z (I) wherein: y denotes, in moles, a whole or fractional number such that y≦1.7, x denotes, in moles, a whole or fractional number such that x≦0.7, and z denotes, in moles, a whole or fractional number greater than or equal to 3.
Claim 3
Dependent Claim
49 words
Compositions according to claim 1, wherein the chlorinated polymer is selected from the group consisting of polyvinyl chloride, polyvinylidene chloride, copolymers containing predominantly vinyl chloride units obtained from vinyl chloride and other monomers, and mixtures of polymers or copolymers in which a predominant part is obtained from vinyl chloride.
Claim 4
Dependent Claim
29 words
Compositions according to claim 1, comprising from 0.005% to 5% by weight of the amorphous basic aluminum magnesium carbonate of formula (I) relative to the weight of chlorinated polymer.
Claim 5
Dependent Claim
29 words
Compositions according to claim 3, comprising from 0.01% to 2% by weight of the amorphous basic aluminum magnesium carbonate of formula (I) relative to the weight of chlorinated polymer.
Claim 6
Dependent Claim
70 words
Compositions according to claim 1 wherein the lead compound is selected from the group consisting of dibasic lead carbonate, tribasic lead sulphate, tetrabasic lead sulphate, dibasic lead phosphite, lead orthosilicate, basic lead silicate, a coprecipitate of lead silicate and sulphate, basic lead chlorosilicate, a coprecipitate of silica gel and lead orthosilicate, dibasic lead phthalate, lead stearate, dibasic lead stearate, tetrabasic lead fumarate, dibasic lead maleate, lead 2-ethylhexanoate and lead laurate.
Claim 7
Dependent Claim
26 words
Compositions according to claim 1, wherein the quantity of lead compound is from 0.005% to 5% by weight relative to the weight of the chlorinated polymer.
Claim 8
Dependent Claim
26 words
Compositions according to claim 6, wherein the quantity of lead compound is from 0.05% to 2% by weight relative to the weight of the chlorinated polymer.
Claim 9
Dependent Claim
15 words
Compositions according to claim 1, further comprising organic cadmium or barium compounds or mixtures thereof.
Claim 10
Dependent Claim
25 words
Compositions according to claim 8, wherein the organic cadmium or barium compounds are cadmium carboxylates or phenolates or barium carboxylates or phenolates or mixtures thereof.
Claim 11
Dependent Claim
46 words
Compositions according to claim 8, wherein the quantity of organic cadmium compounds is up to 1% by weight relative to the weight of the chlorinated polymer and the quantity of barium compounds is up to 5% by weight relative to the weight of the chlorinated polymer.
Claim 12
Dependent Claim
27 words
Compositions according to claim 10, wherein the quantity of organic cadmium compounds is from 0.01% to 0.6% by weight relative to the weight of the chlorinated polymer.
Claim 13
Dependent Claim
26 words
Compositions according to claim 10, wherein the quantity of barium compounds is from 0.02% to 2% by weight relative to the weight of the chlorinated polymer.
Claim 14
Dependent Claim
16 words
Compositions according to claim 1, wherein the organostannic compound is a dialkyltin carboxylate or dialkyltin mercaptide.
Claim 15
Dependent Claim
17 words
Compositions according to claim 13, wherein the organostannic compound is a di-n-butyltin derivative or a di-n-octyltin derivative.
Claim 16
Dependent Claim
27 words
Compositions according to claim 1, wherein the quantity of the organostannic compound is from 0.005% to 5% by weight relative to the weight of the chlorinated polymer.
Claim 17
Dependent Claim
27 words
Compositions according to claim 15, wherein the quantity of the organostannic compound is from 0.01% to 2% by weight relative to the weight of the chlorinated polymer.
Claim 18
Dependent Claim
79 words
Compositions according to claim 1, further comprising an effective quantity of a γ-hydroxyalkylated polyorganosiloxane oil of general formula (II) ##STR2## wherein: the radicals R, which are the same or different, denote a methyl or phenyl radical, at least 60 mol % of which are methyl radicals; R' denotes a linear or branched alkylene radical containing 2 to 6 carbon atoms; p denotes an average number from 1 to 30; and q denotes an average number from 1 to 100.
Claim 19
Dependent Claim
43 words
Compositions according to claim 17, containing an oil of formula (II) wherein: R denotes a methyl radical; R' denotes a trimethylene or 2-methyltrimethylene radical; p denotes an average number from 2 to 20; and q denotes an average number from 2 to 30.
Claim 20
Dependent Claim
23 words
Compositions according to claim 1, further comprising up to 5% weight of γ-hydroxyalkylated polyorganosiloxane oil relative to the weight of the chlorinated polymer.
Claim 21
Dependent Claim
25 words
Compositions according to claim 19, further comprising from 0.01% to 2% by weight of γ-hydroxyalkylated polyorganosiloxane oil relative to the weight of the chlorinated polymer.
Claim 22
Dependent Claim
23 words
Compositions according to claim 1, wherein the amorphous basic aluminum magnesium carbonate further comprises from 0.1% to 20% by weight of a polyol.
Claim 23
Dependent Claim
23 words
Compositions according to claim 21, wherein the amorphous basic aluminum magnesium carbonate further comprises from 1% to 10% by weight of a polyol.
Claim 24
Dependent Claim
10 words
Compositions according to claim 21, wherein the polyol is sorbitol.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-08-16 | 1997-02-15 | 1997-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-16 | 2001-02-15 | 2001-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-16 | 2005-02-15 | 2005-08-17 | $7700.00 | Window Closed / Lapsed |