Patent US3770491A successfully refreshed from Google Patents.
US3770491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System hardenable by ionizing radiation
Assignee: BASF SE
•
Filing: 1971-11-08
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Granted: 1973-11-06
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Expires: 1991-11-08
Abstract
Abstract A process for the production, on a substrate, of coatings with improved adhesion, mechanical properties and corrosion resistance wherein a mixture which contains, as the components forming the binder, a mixture of olefinically unsaturated organic compounds is first applied by a conventional method to the substrate to be coated and then cured with ionizing radiation and wherein the binder is a mixture of the following components: A. from 50 to 98 percent by weight of at least one copolymerizable compound having a boiling point above 100*C and containing at least two olefinically unsaturated bonds: B. from 50 to 2 percent by weight of compounds of the general formula: IN WHICH THE RADICAL X and/or Y contains at least one copolymerizable C-C double bond and up to twenty carbon atoms; and C. from 0 to 30 percent by weight of at least one other compound (not identical with the compounds specified under (B) having a single olefinic unsaturation; the sum of the percentages given under (A), (B) and (C) being 100.
Inventors
- 👤 H Spoor
- 👤 K Demmler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:16
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/24; C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/20; C08F283/00; C08F283/01; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
17 words
A process as claimed in claim 1 wherein the radical X in the compound (B) is a
Claim 2
Dependent Claim
42 words
A process as claimed in claim 1 wherein the radical Y in the compound (B) denotes a linear or branched alkylene radical of two to 20 carbon atoms or a cycloalkylene radical or five to 10 carbon atoMs or an arylene radical.
Claim 3
Dependent Claim
62 words
A process as claimed in claim 1 wherein the component forming the binder consists of a mixture of: from 60 to 80 percent by weight of component (A); from 20 to 40 percent by weight of component (B); and from 0 to 20 percent by weight of component (C), the sum of the percentages given under (A), (B) and (C) being 100.
Claim 4
Dependent Claim
39 words
A process as claimed in claim 1 wherein component (A) is at least one compound from the group consisting of glycol diacrylate, glycol dimethacrylate, 1,3-propylene glycol diacrylate, 1,3-propylene glycol dimethacrylate, 1,4-butanediol diacrylate, 1,4-butanediol dimethacrylate, 2-ethylhexanediol-1,6 diacrylate and 2-ethylhexanediol-1,6 dimethacrylate.
Claim 5
Dependent Claim
37 words
A process as claimed in claim 1 wherein an unsaturated polyester which is a polycondensation product from a polybasic carboxylic acid and a polyhydrid alcohol and which contains ethylenically unsaturated copolymerizable groups is used as component (A).
Claim 6
Dependent Claim
72 words
A process as claimed in claim 6 wherein the unsaturated polyester used as component (A) contains condensed therein in ester combination as the polybasic carboxylic acid at least one compound from the group consisting of maleic acid, fumaric acid and itaconic acid and, as polyhydric alcohol, at least one compound from the group consisting of ethylene glycol, propylene glycol-1,2, butanediol-1,3 butanediol-1,4, hexanediol-1,6, 2,2-dimethylpropanediol-1,3, diethylene glycol, triethylene glycol, cyclohexanediol-1,2, 2,2-bis-(p-hydroxycyclohexyl)-propane, 1,4-bismethylolcyclohexene and butenediol-1,4.
Claim 7
Dependent Claim
78 words
A process as claimed in claim 7 wherein the polycarboxylic acid, condensed into the unsaturated polyester, from the group consisting of maleic acid, fumaric acid and itaconic acid is partially replaced by at least one compound from the group consisting of succinic acid, glutaric acid, Alpha -methylglutaric acid, adipic acid, sebacic acid, o-phthalic acid, isophthalic acid, terephthalic acid, tetrahydrophthalic acid, 3, 6-endomethylene-1,2,3,6-tetrahydrophthalic acid and hexachloroendomethylenetetrahydrophthalic acid, and the unsaturated polyester has an acid number of less than 70.
Claim 8
Dependent Claim
17 words
A process as claimed in claim 1 wherein the radical X in the compound (B) is a
Claim 9
Dependent Claim
16 words
A process as claimed in claim wherein the radical X in the compound (B) is a
Claim 10
Dependent Claim
21 words
A process as claimed in claim 3 wherein the alkylene, cycloalkylene or arylene radical Y in compound (B) is olefinically unsaturated.
Claim 11
Dependent Claim
27 words
A process as claimed in claim 3 wherein the cycloalkylene or arylene radical specified as radical Y in compound (B) bears alkyl or carboxyl as a substituent.
Claim 12
Dependent Claim
108 words
A process as claimed in claim 1 wherein as component (B) there is used a monoester of a dicarboxylic acid from the group maleic acid, fumaric acid, o-phthalic acid, dihydrophthalic acid, tetrahydrophthalic acid, bicyclooctenetetracarboxylic acids, itaconic acid, succinic acid, glutaric acid, adipic acid, with a compound containing a hydroxyl group from the group consisting of ethylene glycol monoacrylate, ethylene glycol monomethacrylate, 1,2-propylene glycol monoacrylate or monomethacrylate, 1,3-propylene glycol monoacrylate or monomethacrylate, 1,4-butanediol monoacrylate, 1,4-butanediol monomethacrylate, 1,6-hexanediol monoacrylate or methacrylate, 2-ethylhexanediol-1,6 monoacrylate or monomethacrylate, diglycol monoacrylate or monoMethacrylate, triglycol monoacrylate or monomethacrylate, ethylene glycol monovinyl ether, 1,4-butanediol monovinyl ether, glycol monovinyl thioether, diglycol monovinyl ether and diglycol monovinyl thioether.
Claim 13
Dependent Claim
12 words
A process as claimed in claim 1 wherein component (C) is styrene.
Claim 14
Dependent Claim
35 words
A process as claimed in claim 1 wherein the components forming the binder are applied to a substrate to be coated together with a known finely particled pigment or filler and cured with ionizing radiation.
Claim 15
Dependent Claim
45 words
A process as claimed in claim 1 wherein the components forming the binder are applied to a substrate to be coated mixed with a small amount of known additives from the group of organic solvents, stabilizers, plasticizers and flow improvers and cured with ionizing radiation.
Claim 16
Dependent Claim
20 words
A process as claimed in claim 1 wherein curing by irradiation with ionizing radiation is carried out while excluding air.
Claim 17
Dependent Claim
13 words
Articles whose surface has been coated by the process claimed in 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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |