Diacrylates and dimethacrylates
First Claim
1. A photosensitive composition consisting essentially of(a) 5-65% by weight of a compound of formula (Ia) or (Ib), ##STR9## wherein the substituents R1 are each independently of the other hydrogen or methyl, R2 is an unsubstituted C1 -C20 alkyl group or a C1 -C20 alkyl group which is substituted by one or more than one substituent selected from the group consisting of hydroxy, C6 -C14 aryl and halogen, an unsubstituted phenyl group or a phenyl group which is substituted by one or more than one substituent selected from the group consisting of C1 -C6 alkyl, hydroxy or halogen, or is a radical of formula --CH2 OR3, wherein R3 is an unsubstituted C1 -C20 alkyl group or a C1 -C20 alkyl group which is substituted by one or more than one substituent selected from the group consisting of hydroxy, C6 -C14 aryl and halogen, an unsubstituted phenyl group or a phenyl group which is substituted by one or more than one substituent selected from the group consisting of C1 -C6 alkyl, hydroxy and halogen, or is a C2 -C6 alkenyl group, a C2 -C20 acyl group or an unsubstituted cyclohexylcarbonyl group or a cyclohexylcarbonyl group which is substituted by one or more than one substituent selected from the group consisting of C1 -C6 alkyl, hydroxy and halogen, Z is a group of formulae (IIa)-(IIe) ##STR10## wherein Y is a direct bond, C1 -C6 alkylene, --S--, --O--, --SO--, --SO2 -- or --CO--, and R1 is hydrogen or methyl, and wherein the aromatic and cycloaliphatic rings of formulae (IIa)-(IIe) are unsubstituted or substituted by one or more than one substituent selected from the group consisting of C1 -C6 alkyl, chloro and bromo,(b) 15-70% by weight of one or more than one bifunctional acrylate or methacrylate having a molecular weight in the range from 150 to 450 and differing from the compound of formula (Ia) or (Ib),(c) 0-40% by weight of one or more than one monomeric polyfunctional acrylate or methacrylate having a functionality of not less than 3 and a molecular weight of not more than 600,(d) 0-10% by weight of at least one monofunctional acrylate or methacrylate,(e) 0-10% by weight of N-vinylpyrrolidone or N-vinylcaprolactam,(f) 2-10% by weight of at least one photoinitiator, and(g) 0-60% by weight of at least one urethane acrylate or methacrylate having a functionality of 2-4 and a molecular weight in the range from 500-10 000,such that the sum of the amounts of components (a) to (g) together is 100% by weight.
10 Assignments
0 Petitions
Accused Products
Abstract
Compounds of formulae (Ia) and (Ib) ##STR1## wherein the substituents R1 are each independently of the other hydrogen or methyl, R2 is an unsubstituted C1 -C20 alkyl group or a C1 -C20 alkyl group which is substituted by one or more than one substituent selected from the group consisting of hydroxy, C6 -C14 aryl and halogen, an unsubstituted phenyl group or a phenyl group which is substituted by one or more than one substituent selected from the group consisting of C1 -C6 alkyl, hydroxy or halogen, or is a radical of formula --CH2 --OR3, wherein R3 is an unsubstituted C1 -C20 alkyl group or a C1 -C20 alkyl group which is substituted by one or more than one substituent selected from the group consisting of hydroxy, C6 -C14 aryl and halogen, an unsubstituted phenyl group or a phenyl group which is substituted by one or more than one substituent selected from the group consisting of C1 -C6 alkyl, hydroxy and halogen, or is a C2 -C6 alkenyl group, a C2 -C20 acyl group or an unsubstituted cyclohexylcarbonyl group or a cyclohexylcarbonyl group which is substituted by one or more than one substituent selected from the group consisting of C1 -C6 alkyl, hydroxy and halogen, Z is a group of formulae (IIa)-(IIe) ##STR2## wherein Y is a direct bond, C1 -C6 alkylene, --S--, --O--, --SO--, --SO2 -- or --CO--, and R1 is hydrogen or methyl, and wherein the aromatic and cycloaliphatic rings of formulae (IIa)-(IIe) are unsubstituted or substituted by one or more than one substituent selected from the group consisting of C1 -C6 alkyl, chloro and bromo, form, in conjunction with other acrylates or methacrylates, low viscosity photocurable compositions which, when fully cured, give moulded articles of excellent flexibility.
19 Citations
10 Claims
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1. A photosensitive composition consisting essentially of
(a) 5-65% by weight of a compound of formula (Ia) or (Ib), ##STR9## wherein the substituents R1 are each independently of the other hydrogen or methyl, R2 is an unsubstituted C1 -C20 alkyl group or a C1 -C20 alkyl group which is substituted by one or more than one substituent selected from the group consisting of hydroxy, C6 -C14 aryl and halogen, an unsubstituted phenyl group or a phenyl group which is substituted by one or more than one substituent selected from the group consisting of C1 -C6 alkyl, hydroxy or halogen, or is a radical of formula --CH2 OR3, wherein R3 is an unsubstituted C1 -C20 alkyl group or a C1 -C20 alkyl group which is substituted by one or more than one substituent selected from the group consisting of hydroxy, C6 -C14 aryl and halogen, an unsubstituted phenyl group or a phenyl group which is substituted by one or more than one substituent selected from the group consisting of C1 -C6 alkyl, hydroxy and halogen, or is a C2 -C6 alkenyl group, a C2 -C20 acyl group or an unsubstituted cyclohexylcarbonyl group or a cyclohexylcarbonyl group which is substituted by one or more than one substituent selected from the group consisting of C1 -C6 alkyl, hydroxy and halogen, Z is a group of formulae (IIa)-(IIe) ##STR10## wherein Y is a direct bond, C1 -C6 alkylene, --S--, --O--, --SO--, --SO2 -- or --CO--, and R1 is hydrogen or methyl, and wherein the aromatic and cycloaliphatic rings of formulae (IIa)-(IIe) are unsubstituted or substituted by one or more than one substituent selected from the group consisting of C1 -C6 alkyl, chloro and bromo, (b) 15-70% by weight of one or more than one bifunctional acrylate or methacrylate having a molecular weight in the range from 150 to 450 and differing from the compound of formula (Ia) or (Ib), (c) 0-40% by weight of one or more than one monomeric polyfunctional acrylate or methacrylate having a functionality of not less than 3 and a molecular weight of not more than 600, (d) 0-10% by weight of at least one monofunctional acrylate or methacrylate, (e) 0-10% by weight of N-vinylpyrrolidone or N-vinylcaprolactam, (f) 2-10% by weight of at least one photoinitiator, and (g) 0-60% by weight of at least one urethane acrylate or methacrylate having a functionality of 2-4 and a molecular weight in the range from 500-10 000, such that the sum of the amounts of components (a) to (g) together is 100% by weight.
Specification
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- Resources
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Current AssigneeHuntsman Advanced Materials Americas, Inc.
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Original AssigneeCIBA Specialty Chemicals
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InventorsSchulthess, Adrian, Hunziker, Max, Steinmann, Bettina
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Primary Examiner(s)DAWSON, ROBERT A
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Application NumberUS08/342,955Time in Patent Office1,954 DaysField of Search525/531, 525/922, 525/529, 525/530US Class Current525/531CPC Class CodesB33Y 10/00 Processes of additive manuf...B33Y 70/00 Materials specially adapted...C07C 69/54 Acrylic acid esters; Methac...G03F 7/027 Non-macromolecular photopol...Y10S 525/922 Polyepoxide polymer having ...
