Radiation curable light-stablised compositions
First Claim
Patent Images
1. A radiation curable, light-stabilized coating composition comprising:
- (A) a curable ethylenically unsaturated monomer or oligomer which is crosslinkable upon exposure to radiation or electron beams and selected from the group consisting of;
a) alkyl (meth)acrylates,b) hydroxyalkyl (meth)acrylates,c) acylamide,d) methacrylamide,e) N-substituted (meth)acylamides,f) vinyl esters,g) vinyl esters,h) styrene,i) alkylstyrenes,j) halostyrenes,k) N-vinylpyrrolidone,l) vinyl chloride,m) vinylidene chloride,n) 4,4'"'"'-bis(2-acryloyloxyethoxy)diphenylpropane,o) trimethylolpropane triacrylate,p) pentaerythritol triacrylate and tetraacrylate,q) vinyl acrylate,r) divinylbenzene,s) divinyl succinate,t) diallyl phthalate,u) triallyl phosphate,v) triallyl isocyanurate,w) tris(2-acryloyloxyethyl)isocyanurate,x) ethylene glycol diacrylate,y) bisphenol A diacrylate,z) acrylated epoxy resins,aa) acylated polyethers,bb) acylated polyurethanes,cc) acylated polyesters,dd) unsaturated polyester resins prepared from maleic acid, phthalic acid and one or more diols which have molecular weights of ca. 500 to 3000; and
ee) mixtures of said monomers and oligomers; and
B) an effective stabilizing amount of triazine UV absorber of formula I ##STR5## wherein R is hydrogen or C1 -C18 alkyl,R1 and R2 are each, independently of the other, hydrogen, OH, C1 -C12 alkyl, halogen or halomethyl,R3 and R4 are each, independently of the other, hydrogen, OH, C1 -C12 alkyl, C1 -C18 alkoxy or halogen, andR5 and R6 are each, independently of the other, hydrogen, C1 -C12 alkyl or halogen.
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Abstract
A radiation curable composition contains as light stabiliser a UV absorber of formula I ##STR1## wherein R is hydrogen or C1 -C18 alkyl, R1 and R2 are each independently of the other H, OH, C1 -C12 alkyl, halogen or halomethyl,
R3 and R4 are each independently of the other H, OH, C1 -C12 alkyl, C1 -C18 alkoxy or halogen, and
R5 and R6 are each independently of the other H, C1 -C12 alkyl or halogen. These UV absorbers are substantially non-yellowing.
69 Citations
17 Claims
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1. A radiation curable, light-stabilized coating composition comprising:
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(A) a curable ethylenically unsaturated monomer or oligomer which is crosslinkable upon exposure to radiation or electron beams and selected from the group consisting of; a) alkyl (meth)acrylates, b) hydroxyalkyl (meth)acrylates, c) acylamide, d) methacrylamide, e) N-substituted (meth)acylamides, f) vinyl esters, g) vinyl esters, h) styrene, i) alkylstyrenes, j) halostyrenes, k) N-vinylpyrrolidone, l) vinyl chloride, m) vinylidene chloride, n) 4,4'"'"'-bis(2-acryloyloxyethoxy)diphenylpropane, o) trimethylolpropane triacrylate, p) pentaerythritol triacrylate and tetraacrylate, q) vinyl acrylate, r) divinylbenzene, s) divinyl succinate, t) diallyl phthalate, u) triallyl phosphate, v) triallyl isocyanurate, w) tris(2-acryloyloxyethyl)isocyanurate, x) ethylene glycol diacrylate, y) bisphenol A diacrylate, z) acrylated epoxy resins, aa) acylated polyethers, bb) acylated polyurethanes, cc) acylated polyesters, dd) unsaturated polyester resins prepared from maleic acid, phthalic acid and one or more diols which have molecular weights of ca. 500 to 3000; and ee) mixtures of said monomers and oligomers; and B) an effective stabilizing amount of triazine UV absorber of formula I ##STR5## wherein R is hydrogen or C1 -C18 alkyl, R1 and R2 are each, independently of the other, hydrogen, OH, C1 -C12 alkyl, halogen or halomethyl, R3 and R4 are each, independently of the other, hydrogen, OH, C1 -C12 alkyl, C1 -C18 alkoxy or halogen, and R5 and R6 are each, independently of the other, hydrogen, C1 -C12 alkyl or halogen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification
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Current AssigneeCIBA Specialty Chemicals
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Original AssigneeCiba-Geigy Corporation (Novartis Ag)
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InventorsValet, Andreas, Kohler, Manfred
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Primary Examiner(s)Berman, Susan W.
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Application NumberUS07/695,374Time in Patent Office1,306 DaysField of Search522/75, 522/96, 522/174, 522/182, 524/89, 524/100US Class Current522/75CPC Class CodesC08K 5/3492 TriazinesC08K 5/34926 also containing heterocycli...C09B 57/00 Other synthetic dyes of kno...C09D 7/48 Stabilisers against degrada...
