US4619956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of high solids coatings with synergistic combinations
Assignee: Wyeth Holdings LLC
•
Filing: 1985-05-03
•
Granted: 1986-10-28
•
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 18:37
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.
References Cited (Backward Citations)
US3118887A
Cited
US3268474A
Cited
US4426472A
Cited
US4355071A
Cited
US4426471A
Cited
US4314933A
Cited
US4356307A
Cited
US4419472A
Cited
EP0078603A1
Cited
US4530950A
Cited
EP0087294A1
Cited
US4524165A
Cited
US4525504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-10-27 | 1990-04-28 | 1990-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-27 | 1994-04-28 | 1994-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-27 | 1998-04-28 | 1998-10-28 | $7700.00 | Window Closed / Lapsed |