US3773547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of coatings by curing with ionizing radiation
Assignee: BASF SE
•
Filing: 1971-11-15
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Granted: 1973-11-20
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Expires: 1991-11-15
Abstract
Abstract WHERE R, R1, R2, R3 and R4 are identical or different and denote hydrogen or alkyl of one to four carbon atoms, and the coating is applied to a substrate and cured with ionizing radiation. A process for the production of coatings in which the component serving as binder contains olefinically unsaturated polymeric substances having per molecule at least two units of the general formula
Inventors
- 👤 H Spoor
- 👤 K Demmler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:53
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/46; B; B05; B05D; B05D3/00; B05D3/06; B05D3/068; C08F8/00; B05D3/04; B05D3/0486; C08F2800/00; C08F2800/20; C08F2810/00; C08F2810/20; C08F2810/30; C08F2810/40; C08F2810/50; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31645; Y10T428/31649; Y10T428/31652; Y10T428/31667; Y10T428/31678; Y10T428/31692; Y10T428/31699; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906; Y10T428/31935
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
20 words
A process as claimed in claim 1 wherein R, R1, R2, R3 and R4 in the general formula are hydrogen.
Claim 2
Dependent Claim
24 words
A process as claimed in claim 1 wherein R or R1 in the general formula is methyl and R2, R3 and R4 are hydrogen.
Claim 3
Dependent Claim
37 words
A process as claimed in claim 1 wherein the olefinically unsatured polymeric substances forming the binder have been applied to a substrate in admixture with monomeric olefinically moNo- or polyunsaturated substances and are cured by ionizing radiation.
Claim 4
Dependent Claim
23 words
A process as claimed in claim 1 wherein the olefinically unsaturated polymeric substances forming the binder are used in admixture with conventional additives.
Claim 5
Dependent Claim
22 words
A process as claimed in claim 4 wherein the olefinically unsaturated polymeric substances forming the binder are used together with conventional additives.
Claim 6
Dependent Claim
26 words
A process as claimed in claim 1 wherein the olefinically unsaturated polymeric substances forming the binder have a mean molecular weight of from 700 to 3,000.
Claim 7
Dependent Claim
26 words
A process as claimed in claim 1 wherein the olefinically unsaturated polymeric substances forming the binder have a mean molecular weight of from 800 to 2,000.
Claim 8
Dependent Claim
48 words
A process as claimed in claim 4 wherein the olefinically unsaturated polymeric substances are applied to a substrate together with an ester of an olefinically unsaturated C3 to C5 monocarboxylic acid with a dihydric alcohol or oxa-alcohol of two to 10 carbon atoms, and cured by ionizing radiation.
Claim 9
Dependent Claim
18 words
A process as claimed in claim 9 wherein said ester is an ester of acrylic or methacrylic acid.
Claim 10
Dependent Claim
46 words
A process as claimed in claim 1 wherein the olefinically unsaturated polymeric substances are used in admixture with an ester of acrylic or methacrylic acid with a C1 to C20 monoalcohol, a vinylaromatic compound or a vinyl ester of an organic C1 to C11 carboxylic acid.
Claim 11
Dependent Claim
60 words
A process as claimed in claim 1 wherein the olefinically unsaturated polymeric substance is a reaction product of vinyl thioethanol with a copolymer of maleic anhydride and a copolymerizable olefinically unsaturated compound selected from the group consisting of ethylene, propylene, butene, isobutylene, diisobutene, hexene, styrene, vinyltoluene, vinyl acetate, vinyl propionate and a vinyl ether of a C1 to C20 alcohol.
Claim 12
Dependent Claim
14 words
Coated articles which have been cured by the method as claimed in claim 1.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |