US4302484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers crosslinkable by electron beams
Assignee: Bayer AG
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Filing: 1979-12-19
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Granted: 1981-11-24
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Expires: 1999-12-19
Abstract
Abstract Resist lacquers crosslinking under the influence of electron beams of which the active constituents is a copolymer of (A) 10 to 90 moles of a C 1 -C 20 alkyl ester of acrylic acid and/or methacrylic acid; (B) 0 to 50 moles and, preferably 10 to 50 moles, of a hydroxyl-group-containing C 1 -C 10 alkyl ester of acrylic and/or methacrylic acid, and (C) 3 to 70 moles and, preferably 10 to 50 moles, of a monomer which contains the structural element ##STR1## wherein ##STR2## --O-- and Ar is an aromatic radical.
Inventors
- 👤 Hans J. Rosenkranz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:14
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31667; Y10T428/31678; Y10T428/31692; Y10T428/31699; Y10T428/31855; Y10T428/31935
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
236 words
A method of crosslinking a coating on a substrate, said coating comprising a copolymer of (A) 10 to 90 moles of a C 1 -C 20 alkyl ester of at least one member of the group consisting of acrylic acid and methacrylic acid; (B) 0 to 50 moles of a hydroxyl group containing C 1 -C 10 alkyl ester of at least one member selected from the group consisting of acrylic acid and methacrylic acid and (C) 3 to 70 moles of a monomer of the formula ##STR6## wherein Ar is a monofunctional to hexafunctional aryl radical having from 6 to 18 carbon atoms and consisting of from 1 to 3 rings; R is hydrogen, alkyl having 1 to 12 carbon atoms, halogen, alkoxy having 1 to 12 carbon atoms, --O--(CH 2 CH 2 --O) 1-4 --H, --O--(CHCH 3 --CH 2 O) 1-4 --H, nitro, --COOH, --CHO, --COO-alkyl wherein said alkyl has 1 to 12 carbon atoms, --CN, --CONH 2 , --CONH-alkyl wherein said alkyl has 1 to 12 carbon atoms, --CON(alkyl) 2 wherein alkyl has from 1 to 12 carbon atoms or --NHCO-alkyl wherein said alkyl has 1 to 12 carbon atoms and n is an integer of from 1 to 5, said method comprising subjecting said coating on said substrate to electron beam radiation at a dose of 10 -6 to 10 -3 coulombs/cm 2 at an energy of from 1,000 to 100,000 eV.
Claim 2
Independent Claim
236 words
A method of crosslinking a coating on a substrate, said coating comprising a copolymer of (A) 10 to 90 moles of a C 1 -C 20 alkyl ester of at least one member of the group consisting of acrylic acid and methacrylic acid; (B) 0 to 50 moles of a hydroxyl group containing C 1 -C 10 alkyl ester of at least one member selected from the group consisting of acrylic acid and methacrylic acid and (C) 3 to 70 moles of a monomer of the formula ##STR6## wherein Ar is a monofunctional to hexafunctional aryl radical having from 6 to 18 carbon atoms and consisting of from 1 to 3 rings; R is hydrogen, alkyl having 1 to 12 carbon atoms, halogen, alkoxy having 1 to 12 carbon atoms, --O--(CH 2 CH 2 --O) 1-4 --H, --O--(CHCH 3 --CH 2 O) 1-4 --H, nitro, --COOH, --CHO, --COO-alkyl wherein said alkyl has 1 to 12 carbon atoms, --CN, --CONH 2 , --CONH-alkyl wherein said alkyl has 1 to 12 carbon atoms, --CON(alkyl) 2 wherein alkyl has from 1 to 12 carbon atoms or --NHCO-alkyl wherein said alkyl has 1 to 12 carbon atoms and n is an integer of from 1 to 5, said method comprising subjecting said coating on said substrate to electron beam radiation at a dose of 10 -6 to 10 -3 coulombs/cm 2 at an energy of from 1,000 to 100,000 eV.
Claim 3
Dependent Claim
18 words
The method of claim 1 wherein (B) is present in an amount of from 10 to 50 moles.
Claim 4
Dependent Claim
18 words
The method of claim 1 wherein (C) is present in an amount of from 10 to 50 moles.
Claim 5
Dependent Claim
19 words
The method of claim 1 wherein said copolymer further comprises from 0 to 30 moles of unsaturated carboxylic acid.
Claim 6
Dependent Claim
23 words
The method of claim 4 wherein said unsaturated carboxylic acid is acrylic acid, methacrylic acid, maleic acid or fumaric acid in copolymerized form.
Claim 7
Dependent Claim
27 words
The method of claim 1 wherein said copolymer further comprises from 0 to 40 moles of acrylamide, methacrylamide or the N-alkyl substitution products thereof in copolymerized form.
Claim 8
Dependent Claim
50 words
The method of claim 1 wherein the copolymer further comprises from 0 to 70 moles of styrene, α-methylstyrene, acrylonitrile, vinylacetate, vinyl propionate, a vinylalkyl ether having from 1 to 8 carbon atoms in the alkyl moiety, methacrylonitrile, allylacetate, vinyl chloride, vinylidene chloride, maleic imide or maleic anhydride in copolymerized form.
Claim 9
Dependent Claim
26 words
The method of claim 1 wherein compound (A) is methylacrylate, ethylacrylate, butylacrylate, propylacrylate, ethylhexylacrylate, dodecylacrylate, methyl methacrylate, ethyl methacrylate, propyl methacrylate, butyl methacrylate or dodecyl methacrylate.
Claim 10
Dependent Claim
16 words
The method of claim 1 wherein component (B) is hydroxyethylacrylate, hydroxypropylacrylate, hydroxyethyl methacrylate, or hydroxypropyl methacrylate.
Claim 11
Dependent Claim
14 words
The method of claim 1 wherein Ar is phenyl, biphenyl, anthracenyl, phenanthryl or naphthyl.
Claim 12
Dependent Claim
9 words
The method of claim 1 wherein R is halogen.
Claim 13
Dependent Claim
10 words
The method of claim 3 wherein said halogen is chlorine.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-23 | 1985-05-25 | 1985-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-23 | 1989-05-25 | 1989-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-23 | 1993-05-25 | 1993-11-24 | $7700.00 | Window Closed / Lapsed |