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US4279718A
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Aryl-glyoxyloyloxyalkylacrylates and their use in photopolymerizable binders
Assignee: Bayer AG
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Filing: 1979-10-01
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Granted: 1981-07-21
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Expires: 1999-10-01
Abstract
Abstract Compounds added to initiate photopolymerization of monomers to produce polymeric coatings include compounds of the formula ##STR1## wherein Ar is phenyl or naphthyl, R is hydrogen, alkyl with 1-4 carbon atoms, alkoxy with 1-4 carbon atoms, halogen, dialkylamino with 1-4 carbon atoms in each alkyl group, carboxyl, or alkoxycarbonyl with 1-4 carbon atoms in the alkoxy group, X is alkylene having 3 to 6 carbon atoms or alkylene having 6 to 72 carbon atoms interrupted by at least one member selected from the group consisting of ##STR2## and the precursor of X being a polyol having 3 to 6 hydroxyls and having a hydroxyl number of from 100 to 1850, R 1 is hydrogen or methyl, n is a number with a value from about 2 to about 5, and n+m is a number with a value from about 3 to about 6.
Inventors
- 👤 Karl-Ernst Schuster
- 👤 Hans Rudolph
- 👤 Wolfram Mayer
- 👤 Hans J. Rosenkranz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:59
CPC Classifications
C; C08; C08F; C08F299/00; C08F299/02; C08F299/04; C08F299/0407; C08F299/0421; C08F299/0428; C08F299/0435; G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/031
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
150 words
A method of initiating photopolymerization of olefinically unsaturated photopolymerizable monomeric or oligomeric compounds or mixtures thereof comprising using as the initiator a compound of the formula ##STR10## wherein Ar is phenyl or naphthyl, R is hydrogen, alkyl with 1-4 carbon atoms, alkoxy with 1-4 carbon atoms, halogen, dialkylamino with 1-4 carbon atoms in each alkyl group, carboxyl, or alkoxycarbonyl with 1-4 carbon atoms in the alkoxy group, X is alkylene having 3 to 6 carbon atoms or alkylene having 6 to 72 carbon atoms interrupted by at least one member selected from the group consisting of ##STR11## and the precursor of X being a polyol having 3-6 hydroxyls and having a hydroxyl number from 100 to 1850, R 1 is hydrogen or methyl, n is a number with a value from about 2 to about 5, and n+m is a number with a value from about 3 to about 6.
Claim 2
Independent Claim
150 words
A method of initiating photopolymerization of olefinically unsaturated photopolymerizable monomeric or oligomeric compounds or mixtures thereof comprising using as the initiator a compound of the formula ##STR10## wherein Ar is phenyl or naphthyl, R is hydrogen, alkyl with 1-4 carbon atoms, alkoxy with 1-4 carbon atoms, halogen, dialkylamino with 1-4 carbon atoms in each alkyl group, carboxyl, or alkoxycarbonyl with 1-4 carbon atoms in the alkoxy group, X is alkylene having 3 to 6 carbon atoms or alkylene having 6 to 72 carbon atoms interrupted by at least one member selected from the group consisting of ##STR11## and the precursor of X being a polyol having 3-6 hydroxyls and having a hydroxyl number from 100 to 1850, R 1 is hydrogen or methyl, n is a number with a value from about 2 to about 5, and n+m is a number with a value from about 3 to about 6.
Claim 3
Dependent Claim
202 words
A photopolymerizable binder consisting of mixtures of (A) 20-95% by weight of at least one photopolymerizable resin containing more than one olefinically unsaturated C--C double bond, selected from the group consisting of epoxy resins polyesters and polyurethanes, (B) 0-75% by weight of at least one acrylic or methacrylic acid ester of a mono- to tetrahydric alcohol or styrene or mixtures thereof, and (C) 5-80% by weight of at least one photoinitiator which is a compound of the formula ##STR12## wherein Ar is phenyl or naphthyl, R is hydrogen, alkyl with 1-4 carbon atoms, alkoxy with 1-4 carbon atoms, halogen, dialkylamino with 1-4 carbon atoms in each alkyl group, carboxyl, or alkoxycarbonyl with 1-4 carbon atoms in the alkoxy group, X is alkylene having 3 to 6 carbon atoms or alkylene having 6 to 72 carbon atoms interrupted by at least one member selected from the group consisting of ##STR13## and the precursor of X being a polyol having 3-6 hydroxyls and having a hydroxyl number from 100 to 1850, R 1 is hydrogen or methyl, n is a number with a value from about 2 to about 5, and n+m is a number with a value from about 3 to about 6.
Claim 4
Dependent Claim
202 words
A photopolymerizable binder consisting of mixtures of (A) 20-95% by weight of at least one photopolymerizable resin containing more than one olefinically unsaturated C--C double bond, selected from the group consisting of epoxy resins polyesters and polyurethanes, (B) 0-75% by weight of at least one acrylic or methacrylic acid ester of a mono- to tetrahydric alcohol or styrene or mixtures thereof, and (C) 5-80% by weight of at least one photoinitiator which is a compound of the formula ##STR12## wherein Ar is phenyl or naphthyl, R is hydrogen, alkyl with 1-4 carbon atoms, alkoxy with 1-4 carbon atoms, halogen, dialkylamino with 1-4 carbon atoms in each alkyl group, carboxyl, or alkoxycarbonyl with 1-4 carbon atoms in the alkoxy group, X is alkylene having 3 to 6 carbon atoms or alkylene having 6 to 72 carbon atoms interrupted by at least one member selected from the group consisting of ##STR13## and the precursor of X being a polyol having 3-6 hydroxyls and having a hydroxyl number from 100 to 1850, R 1 is hydrogen or methyl, n is a number with a value from about 2 to about 5, and n+m is a number with a value from about 3 to about 6.
Claim 5
Dependent Claim
64 words
A photopolymerizable binder according to claim 2, wherein component A is an unsaturated polyester containing mainly --OOC--CH═CH--COO--groups as photopolymerizable groups, 1,2-polyepoxides in which 1 mol of 1,2-epoxide groups have been reacted with from 0.6 to 1 mol of (meth)acrylic acid, or polyurethanes containing OH groups, in which 1 mol of OH groups have been esterified with from 0.6 to 1 mol of (meth)acrylic acid.
References Cited (Backward Citations)
US4148987A
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1984-07-20 | 1985-01-19 | 1985-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-20 | 1989-01-19 | 1989-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-20 | 1993-01-19 | 1993-07-21 | $7700.00 | Window Closed / Lapsed |