Patent US5143959A successfully refreshed from Google Patents.
US5143959A
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Compositions for use with chlorinated polymers
Assignee: Rhodia Chimie SAS
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Filing: 1991-04-19
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Granted: 1992-09-01
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Expires: 2011-04-19
Abstract
Abstract A novel composition for use in chlorinated polymers comprising: a) dawsonite, hydrotalcite or a mixture thereof, b) a (γ-hydroxyalkyl)polyorganosiloxane oil, c) an organic zinc compound, and d) an organic calcium, magnesium, barium or lanthanide compound, or a mixture thereof is disclosed, The presence of the polyorganosiloxane oil enables the content of epoxidized oils to be decreased while preserving the thermal stability of the polymer composition. The impact strength of shaped articles prepared from polymers containing compositions of the present invention is also enhanced.
Inventors
- 👤 Louis Carette
- 👤 Gerard Velleret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:32
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/24; C08K3/26; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C08L; C08L57/00; C08L57/06; C08L57/08
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
96 words
A composition comprising: a) dawsonite, hydrotalcite, or a mixture thereof, b) a (γ-hydroxyalkyl)polyorganosiloxane oil of general formula (I) ##STR3## wherein, R, which may be the same or different, represent a methyl or phenyl radical, with at least 60 mol% of R being methyl radicals, R' represents a linear or branched alkylene radical having 2 to 6 carbon atoms, p represents an average number from 1 to 30, and q represents an average number from 1 to 100, c) an organic zinc compound, and d) an organic calcium, magnesium, barium or lanthanide compound, or a mixture thereof.
Claim 2
Dependent Claim
96 words
A composition comprising: a) dawsonite, hydrotalcite, or a mixture thereof, b) a (γ-hydroxyalkyl)polyorganosiloxane oil of general formula (I) ##STR3## wherein, R, which may be the same or different, represent a methyl or phenyl radical, with at least 60 mol% of R being methyl radicals, R' represents a linear or branched alkylene radical having 2 to 6 carbon atoms, p represents an average number from 1 to 30, and q represents an average number from 1 to 100, c) an organic zinc compound, and d) an organic calcium, magnesium, barium or lanthanide compound, or a mixture thereof.
Claim 3
Dependent Claim
49 words
The composition of claim 1, further comprising a chlorinated polymer selected from the group consisting of polyvinyl chloride, polyvinylidene chloride, copolymers substantially containing vinyl chloride units obtained from vinyl chloride and other monomers, and mixtures of polymers or copolymers of which a predominant part is obtained from vinyl chloride.
Claim 4
Dependent Claim
40 words
The composition of claim 1 wherein in formula (I), R represents a methyl radical; R' represents a trimethylene or 2-methyltrimethylene radical; p represents an average number from 2 to 30; and 'q represents an average number from 2 to 30.
Claim 5
Dependent Claim
31 words
The composition of claim 2 wherein said (γ-hydroxyalkyl) polyorganosiloxane oil is present in the amount of from 0.005% to 5% by weight relative to the weight of the chlorinated polymer used.
Claim 6
Dependent Claim
17 words
The composition of claim 1 wherein said organic zinc compound is a zinc carboxylate or zinc phenolate.
Claim 7
Dependent Claim
23 words
The composition claim 1 wherein said organic calcium, magnesium, barium and lanthanide compound or mixture thereof is of the carboxylate or phenolate form.
Claim 8
Dependent Claim
28 words
The composition of claim 2 wherein said organic zinc compound is present in the amount of from 0.005% to 1% by weight relative to the chlorinated polymer used.
Claim 9
Dependent Claim
38 words
The composition of claim 2, wherein organic calcium, magnesium, barium and lanthanide compound mixtures thereof is present in the amount of from 0.005 % to 5 % by weight relative to the weight of the chlorinated polymer used.
Claim 10
Dependent Claim
29 words
The composition of claim 2 wherein said dawsonite is present in the amount of from 0.005% to 5% by weight relative to the weight of the chlorinated polymer used.
Claim 11
Dependent Claim
29 words
The composition of claim 1 wherein said hydrotalcite is present in the amount of from 0.005% to 5% by weight relative to the weight of the chlorinated polymer used.
Claim 12
Dependent Claim
14 words
The composition of claim 1 further comprising at least β-diketone or one β-keto aldehyde.
Claim 13
Dependent Claim
22 words
The composition of claim 11, wherein said β-diketone is selected from the group consisting of benzoylstearoylmethane, dibenzoylmethane, benzoylacetone, benzoyl-(3-methylbutanoyl)methane, (methoxycarbonylbenzoyl)benzoylmethanes and bis(βdiketones).
Claim 14
Dependent Claim
15 words
The composition of claim 2 further comprising at least β-diketone or one -62 -keto aldehyde.
Claim 15
Dependent Claim
11 words
The composition of claim 1 further comprising at least one 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate.
Claim 16
Dependent Claim
11 words
The composition of claim 2 further comprising at least one 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate.
Claim 17
Dependent Claim
101 words
A stabilized composition comprising: a) a chlorinated polymer, b) dawsonite, hydrotalite or a mixture thereof, c) a (γ-hydroxylalkyl)polyorganosiloxane oil of general formula (I) ##STR4## wherein, R, which may be the same or different, represent a methyl or phenyl radical, with at least 60 mol% of R being methyl radicals, R' represents a linear or branched alkylene radical having 2 to 6 carbon atoms, p represents an average number from 1 to 30, and q represents an average number from 1 to 100, d) an organic zinc compound, and e) an organic calcium, magnesium, barium or lanthanide compound, or a mixture thereof.
Claim 18
Dependent Claim
101 words
A stabilized composition comprising: a) a chlorinated polymer, b) dawsonite, hydrotalite or a mixture thereof, c) a (γ-hydroxylalkyl)polyorganosiloxane oil of general formula (I) ##STR4## wherein, R, which may be the same or different, represent a methyl or phenyl radical, with at least 60 mol% of R being methyl radicals, R' represents a linear or branched alkylene radical having 2 to 6 carbon atoms, p represents an average number from 1 to 30, and q represents an average number from 1 to 100, d) an organic zinc compound, and e) an organic calcium, magnesium, barium or lanthanide compound, or a mixture thereof.
Claim 19
Dependent Claim
40 words
The composition of claim 16 wherein in formula (I), R represents a methyl radical; R' represents a trimethylene or 2-methyltrimethylene radical; p represents an average number from 2 to 30; and q represents an average number from 2 to 30.
Claim 20
Dependent Claim
17 words
The composition of claim 16 wherein said organic zinc compound is a zinc carboxylate or zinc phenolate.
Claim 21
Dependent Claim
23 words
The composition claim 16 wherein said organic calcium, magnesium, barium and lanthanide compound or mixture thereof is of the carboxylate or phenolate form.
Claim 22
Dependent Claim
14 words
The composition of claim 16 further comprising at least β-diketone or one γ-keto aldehyde.
Claim 23
Dependent Claim
28 words
The composition of claim 13 wherein said β-diketone is present in the amount of from 0.005% to 5% by weight relative to the weight of the chlorinated polymer.
Claim 24
Dependent Claim
29 words
The composition of claim 15, wherein said 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate is present in the amount of from 0.01% to 5% by weight relative to the weight of the chlorinated polymer used.
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