Patent US4619956A successfully refreshed from Google Patents.
US4619956A
Expired / Lapsed
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Stabilization of high solids coatings with synergistic combinations
Assignee: Wyeth Holdings LLC
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Filing: 1985-05-03
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Granted: 1986-10-28
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Expires: 2005-05-03
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-aryl-s-triazine compound represented by the formula: ##STR1## 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 1 through R 9 is selected from the group consisting of hydrogen, hydroxy, alkyl, alkoxy, sulfonic, carboxy, halo, haloalkyl and acylamino. ,
Inventors
- 👤 Peter V. Susi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:36
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: 20
Claim 1
Independent Claim
122 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 or complexes with metal compounds thereof; and (B) A tris-aryl-s-triazine compound represented by the formula: ##STR26## 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 1 through R 9 is selected from the group consisting of hydrogen, hydroxy, alkyl, alkoxy, sulfonic, carboxy, halo, haloalkyl and acylamino.
Claim 2
Independent Claim
122 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 or complexes with metal compounds thereof; and (B) A tris-aryl-s-triazine compound represented by the formula: ##STR26## 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 1 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
91 words
A method of claim 1 wherein said piperidine compound is represented by the formula: ##STR27## wherein R is a saturated or unsaturated, optionally alkyl- or alkenyl-substituted alkylene or cycloalkylene radical having 2-20 C-atoms and R' is selected from the group consisting of: hydrogen; an alkyl radical having 1-20 C-atoms; an alkenyl radical having 3-5 C-atoms; an aralkyl radical having 7-12 C-atoms; --CH 2 --CH 2 --CN; --CH 2 --CH 2 --COO--alkyl; --CH 2 --CH(CH 3 )--COO--alkyl; an acyl radical; and --(CH 2 --CH 2 O) n H, wherein n is 1-10.
Claim 5
Dependent Claim
43 words
A method of claim 3 wherein R is: (a) a group represented by the formula ##STR28## wherein R" is a C 12 -C 18 alkyl group; (b) a cycloalkylene group; (c) 1,2-cyclohexanediyl or methyl-substituted 1,2-cyclohexanediyl radicals; or (d) a bicyclic divalent aliphatic radical.
Claim 6
Dependent Claim
14 words
A method of claim 3 wherein R' of said piperidine is methyl or acetyl.
Claim 7
Dependent Claim
20 words
A method of claim 1, wherein said piperidine is selected from the group consisting of compounds of the formula: ##STR29##
Claim 8
Dependent Claim
28 words
A method of claim 1 wherein said triazine is a compound represented by the formula: ##STR30## wherein R is hydrogen or alkyl of 1 to 18 carbon atoms.
Claim 9
Dependent Claim
15 words
A method of claim 7 wherein R is hydrogen or C 8 H 17 .
Claim 10
Dependent Claim
116 words
A method of claim 1 wherein said piperidine is a compound represented by the formula: ##STR31## wherein R is a saturated or unsaturated, optionally alkyl- or alkenyl-substituted alkylene or cycloalkylene radical having 2-20 C-atoms and R' is selected from the group consisting of: hydrogen; an alkyl radical having 1-20 C-atoms; an alkenyl radical having 3-5 C-atoms; an aralkyl radical having 7-12 C-atoms; --CH 2 --CH 2 --CN; --CH 2 --CH 2 --COO--alkyl; --CH 2 --CH(CH 3 )--COO--alkyl; an acyl radical; and --(CH 2 -CH 2 O) n H, wherein n is 1-10 and said triazine is a compound represented by the formula: ##STR32## wherein R is a hydrogen or alkyl of 1 to 18 carbon atoms.
Claim 11
Dependent Claim
60 words
A method of claim 9 wherein R of said piperidine compound is: (a) a group represented by the formula ##STR33## wherein R" is a C 12 -C 18 alkyl group; (b) a cycloalkylene group; (c) 1,2-cyclohexanediyl or methyl-substituted 1,2-cyclohexanediyl radicals; and (d) a bicyclic divalent aliphatic radical; and R of said triazine is hydrogen or C 8 H 17 .
Claim 12
Dependent Claim
15 words
A method of claim 10 wherein R' of the piperdine compound is methyl or acetyl.
Claim 13
Dependent Claim
21 words
A method of claim 11 wherein said piperidine is selected from the group consisting of compounds represented by the formulas: ##STR34##
Claim 14
Dependent Claim
44 words
A method of claim 1 wherein said piperidine is selected from the group consisting of compounds represented by the formulas: ##STR35## and said triazine is a compound of the formula: ##STR36## wherein R is a hydrogen or alkyl of 1 to 18 carbon atoms.
Claim 15
Dependent Claim
18 words
A method of claim 13 wherein R of said triazine is hydrogen or C 8 H 17 .
Claim 16
Dependent Claim
55 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 the weight of binder solids and said triazine compound is present in an amount of from about 0.01 to about 5 wt. % based on the weight of binder solids.
Claim 17
Dependent Claim
119 words
A method of claim 3 wherein R of said piperidine is: (a) a group represented by the formula ##STR37## wherein R" is a C 12 -C 18 alkyl group; (b) a cycloalkylene group; (c) 1,2-cyclohexanediyl or methyl-substituted 1,2-cyclohexanediyl radicals; and (d) a bicyclic divalent aliphatic radical; or said piperidine is a compound represented by the formulas: ##STR38## and said triazine is a compound represented by the formulas: ##STR39## and wherein said piperidine compound is present in an amount of from about 0.01 to about 5 wt. % based on the weight of binder solids and said triazine compound is present in an amount of from about 0.01 to about 5 wt. % based on the weight of binder solids.
Claim 18
Dependent Claim
16 words
A method of claim 16 wherein said piperidine is a compound represented by the formula: ##STR40##
Claim 19
Dependent Claim
22 words
A method of claim 16 wherein the polymer is an acid catalyzed thermoset acrylic coating or an acid catalyzed thermoset alkyd resin.
Claim 20
Dependent Claim
14 words
A method of claim 16 wherein R' of said piperidine is methyl or acetyl.
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