Patent EP0200190A2 successfully refreshed from Google Patents.
EP0200190A2
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EP
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Stabilization of high solids coatings with synergistic combinations
Assignee: Wyeth Holdings LLC
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Filing: 1986-04-28
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Granted: —
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Expires: 2006-04-28
Abstract
Abstract A method of stabilizing a polymer film coating or molded article against the action of light, moisture, and oxygen is disclosed. The method comprises incorporating in said polymer a stabilizingly and synergistically effective amount of: (A) A 2,2,6, 6-tetraalkylpiperidine compound, or the acid addition salts or complexes with metal compounds thereof; and (B) A tris-aryi-s-triazine compound represented by the formula: wherein X, Y and Z are each aromatic, carbocylic radicals of less than three 6-membered rings, and at least one of X, Y and Z is substituted by a hydroxy group ortho to the point of attachment to the triazine ring; and each of R' through R 9 is selected from the group consisting of hydrogen, hydroxy, alkyl, alkoxy, sulfonic, carboxy, halo, haloalkyl and acylamino.
Inventors
- 👤 Peter Vincent Susi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 19:09
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/02; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3467; C08K5/3477; C08K5/3492; C08K5/3412; C08K5/3432; C08K5/3435; C09; C09D; C09D167/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
124 words
A method of stabilizing a polymer film, coating or molded article against the action of light, moisture, and oxygen comprising incorporating in said polymer a stabilizingly and synergistically effective amount of: (A) A 2, 2, 6, 6-tetraalkylpiperidine compound, or the acid addition salts of complexes with metal compounds thereof; and (B) A tris-aryl-s-triazine compound represented by the formula: wherein X, Y and Z are each aromatic, carbocyclic radicals of less than three 6-membered rings, and at least one of X, Y and Z is substituted by a hydroxy group ortho to the point of attachment to the triazine ring; and each of R l through R 9 is selected from the group consisting of hydrogen, hydroxy, alkyl, alkoxy, sulfonic, carboxy, halo, haloalkyl and acylamino.
Claim 2
Independent Claim
124 words
A method of stabilizing a polymer film, coating or molded article against the action of light, moisture, and oxygen comprising incorporating in said polymer a stabilizingly and synergistically effective amount of: (A) A 2, 2, 6, 6-tetraalkylpiperidine compound, or the acid addition salts of complexes with metal compounds thereof; and (B) A tris-aryl-s-triazine compound represented by the formula: wherein X, Y and Z are each aromatic, carbocyclic radicals of less than three 6-membered rings, and at least one of X, Y and Z is substituted by a hydroxy group ortho to the point of attachment to the triazine ring; and each of R l through R 9 is selected from the group consisting of hydrogen, hydroxy, alkyl, alkoxy, sulfonic, carboxy, halo, haloalkyl and acylamino.
Claim 3
Dependent Claim
22 words
A method of Claim 1 wherein said polymer is an acid catalyzed thermoset acrylic coating or an acid catalyzed thermoset alkyd resin.
Claim 4
Dependent Claim
20 words
A method of Claim 1, wherein said piperidine is selected from the group consisting of compounds of the formula: and
Claim 5
Dependent Claim
27 words
A method of Claim 1 wherein said triazine is a compound represented by the formula: wherein R is hydrogen or alkyl of 1 to 18 carbon atoms.
Claim 6
Dependent Claim
11 words
A method of Claim 4 wherein R is hydrogen or C8H17.
Claim 7
Dependent Claim
51 words
A method of Claim 1 wherein said piperidine compound is present in an amount of from about 0.01 to about 5 wt. % based on total resin solids and said triazine compound is present in an amount of from about 0.01 to about 5 wt. % based on total resin solids.
Claim 8
Dependent Claim
31 words
A method as recited in Claim 1, wherein said piperidine compound and said triazine compound are each added in an amount of about 0.5% by weight based on total resin solids.
Claim 9
Dependent Claim
92 words
A synergistic stabilizer combination for a polymer, said combination comprising: (a) a 2, 2, 6, 6-tetraalkylpiperidine compound; and (b) a tris-aryl-s-triazine compound represented by the formula: wherein X, Y and Z are eaach aromatic, carbocyclic radicals of less than three 6-membered rings, and at least one of X, Y and Z is substituted by a hydroxy group ortho to the point of attachment to the triazine ring; and each of R 1 through R 9 is selected from the group consisting of hydrogen, hydroxy, alkyl, alkoxy, sulfonic, carboxy, halo, haloalkyl and acylamino.
Claim 10
Dependent Claim
92 words
A synergistic stabilizer combination for a polymer, said combination comprising: (a) a 2, 2, 6, 6-tetraalkylpiperidine compound; and (b) a tris-aryl-s-triazine compound represented by the formula: wherein X, Y and Z are eaach aromatic, carbocyclic radicals of less than three 6-membered rings, and at least one of X, Y and Z is substituted by a hydroxy group ortho to the point of attachment to the triazine ring; and each of R 1 through R 9 is selected from the group consisting of hydrogen, hydroxy, alkyl, alkoxy, sulfonic, carboxy, halo, haloalkyl and acylamino.
Claim 11
Dependent Claim
111 words
A light stable composition comprising: (A) A synthetic polymer useful in coatings and susceptible to degradation by light; and (B) an effective amount of a synergistic stabilizer combination comprising: (1) a 2, 2, 6, 6-tetraalkylpiperidine compound; and (2) a tris-aryl-s-triazine compound represented by the formula: wherein X, Y and Z are each aromatic, carbocyclic radicals of less than three 6-membered rings, and at least one of X, Y and Z is substituted by a hydroxy group ortho to the point of attachment to the triazine ring; and each of R 1 through R 9 is selected from the group consisting of hydrogen, hydroxy, alkyl, alkoxy, sulfonic, carboxy, halo, haloalkyl and acylamino.
Claim 12
Dependent Claim
111 words
A light stable composition comprising: (A) A synthetic polymer useful in coatings and susceptible to degradation by light; and (B) an effective amount of a synergistic stabilizer combination comprising: (1) a 2, 2, 6, 6-tetraalkylpiperidine compound; and (2) a tris-aryl-s-triazine compound represented by the formula: wherein X, Y and Z are each aromatic, carbocyclic radicals of less than three 6-membered rings, and at least one of X, Y and Z is substituted by a hydroxy group ortho to the point of attachment to the triazine ring; and each of R 1 through R 9 is selected from the group consisting of hydrogen, hydroxy, alkyl, alkoxy, sulfonic, carboxy, halo, haloalkyl and acylamino.
References Cited (Backward Citations)
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