US4107012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monomer-free resin compositions, based on unsaturated polyesters, which can be cured by UV-light
Assignee: Bayer AG
•
Filing: 1973-04-24
•
Granted: 1978-08-15
•
Expires: 1993-04-24
Abstract
Abstract The invention relates to a resin composition that is curable by ultra-violet light, which composition comprises (a) 10 to 99.7 percent by weight of a polyester that contains α, β-ethylenically unsaturated dicarboxylic acid radicals and β,γ-ethylenically unsaturated ether groupings, and (b) 0.3 to 10 percent by weight of a photoinitiator.
Inventors
- 👤 Karl Fuhr
- 👤 Hans-Joachim Traenckner
- 👤 Hans Jurgen Rosenkranz
- 👤 Hans Rufolph
- 👤 Manfred Patheiger
- 👤 Artur Haus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:10
CPC Classifications
C; C09; C09D; C09D167/00; C09D167/06; C08; C08F; C08F283/00; C08F283/01; C08L; C08L67/00; C08L67/06; C09D11/00; C09D11/02; C09D11/10; C09D11/101; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786; Y10T428/3179
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
78 words
A resin composition which is curable by ultraviolet light, said composition comprising (a) as the sole curable component, 10 to 99.7% by weight of a polyester having a molecular weight of 300 to 4,000 and containing α,β-ethylenically unsaturated dicarboxylic acid radicals and β,γ-ethylenically unsaturated ether groupings, the molar ratio of the β,γ-unsaturated ether groupings to the double bonds of the dicarboxylic acid radicals being from 0.2:1 to 8:1 and (b) 0.3 to 10% by weight of a photoinitiator.
Claim 2
Dependent Claim
78 words
A resin composition which is curable by ultraviolet light, said composition comprising (a) as the sole curable component, 10 to 99.7% by weight of a polyester having a molecular weight of 300 to 4,000 and containing α,β-ethylenically unsaturated dicarboxylic acid radicals and β,γ-ethylenically unsaturated ether groupings, the molar ratio of the β,γ-unsaturated ether groupings to the double bonds of the dicarboxylic acid radicals being from 0.2:1 to 8:1 and (b) 0.3 to 10% by weight of a photoinitiator.
Claim 3
Dependent Claim
18 words
A composition according to claim 1 which includes an alkyd resin component based on an unsaturated fatty acid.
Claim 4
Dependent Claim
27 words
A composition according to claim 1, in which the polyester (a) comprises at least 50 mole per cent of α,β-ethylenically unsaturated dicarboxylic acid radicals incorporated by condensation.
Claim 5
Dependent Claim
19 words
A composition according to claim 1, in which the polyester (a) has a molecular weight of 500 to 2,000.
Claim 6
Dependent Claim
112 words
A composition according to claim 1, in which the photoinitiator (b) is a benzoin of the general formula ##STR3## in which R is hydrogen, alkyl, aryl, aralkyl, hydroxymethyl or a sulphonic acid ester derivative of hydroxymethyl, R 1 and R 2 are each hydrogen, alkyl with 1 - 4 carbon atoms, alkoxy or halogen, R 4 is --O--Y or --S--Y, and Y is alkyl, aryl, aralkyl, trimethylsilyl or hydrogen, or a benzophenone of the general formula ##STR4## in which R 1 is --CH 2 X, --CHX 2 or --CX 3 , R 2 is hydrogen, methyl, CH 2 X, CHX 2 or CX 3 , and X is chlorine, bromine or iodine.
Claim 7
Dependent Claim
21 words
A composition according to any of claim 1, which further comprises, as a drying agent, a metal naphthenate or metal chelate.
Claim 8
Dependent Claim
16 words
A composition according to any of claim 1, which further comprises a filler, dyestuff or pigment.
Claim 9
Dependent Claim
19 words
A method of producing a cured resin, which method comprises irradiating a composition of claim 1 with ultra-violet light.
Claim 10
Dependent Claim
13 words
A coating or printing ink produced from a composition according to claim 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-08-14 | 1982-02-13 | 1982-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-14 | 1986-02-13 | 1986-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-14 | 1990-02-13 | 1990-08-15 | $7700.00 | Window Closed / Lapsed |