Patent US4596644A successfully refreshed from Google Patents.
US4596644A
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Method of polymerization
Assignee: Novartis Corp
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Filing: 1985-07-05
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Granted: 1986-06-24
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Expires: 2005-07-05
Abstract
Abstract Cationically polymerizable materials, such as epoxide resins, phenoplasts, and aminoplasts, are polymerized by passing an electric current through a composition comprising (A) the cationically polymerizable material, and (B) a boron trifluoride complex, between an anode and a cathode in contact with the composition, whereby polymerized material is deposited on the anode. Typical complexes (B) are those of boron trifluoride with primary, secondary, or tertiary amines or with trialkyl or triaryl phosphines. The method is a particularly suitable means for coating conductive substrates, giving a rapid cure without the need for special formulations to render the polymers electrodepositable.
Inventors
- 👤 Christopher P. Banks
- 👤 Edward Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:05
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2642; C08G65/2645; C08G65/2654; C08G59/00; C08G59/18; C08G59/68; C08G59/72; C08G75/00; C08G75/02; C08G75/06; C08G8/00; C08G8/04; C08L; C08L61/00; C09; C09D; C09D5/00; C09D5/44; C09D5/4476; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31529
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
48 words
A method of polymerizing a cationically polymerizable material which comprises passing an electric current through a composition comprising (A) the cationically polymerizable material, and (B) a boron trifluoride complex, between an anode and a cathode in contact with the composition, whereby polymerized material is deposited on the anode.
Claim 2
Independent Claim
48 words
A method of polymerizing a cationically polymerizable material which comprises passing an electric current through a composition comprising (A) the cationically polymerizable material, and (B) a boron trifluoride complex, between an anode and a cathode in contact with the composition, whereby polymerized material is deposited on the anode.
Claim 3
Dependent Claim
25 words
A method as claimed in claim 1 in which the boron trifluoride complex is one with an alcohol, ether, acid, amine, ester, or tri-substituted phosphine.
Claim 4
Dependent Claim
39 words
A method as claimed in claim 2 in which the boron trifluoride complex is one with an amine which is a heterocycle, amine-substituted heterocycle, aliphatic, cycloaliphatic, or araliphatic or with a phosphine substituted by three aliphatic or aromatic groups.
Claim 5
Dependent Claim
34 words
A method as claimed in claim 3 in which the boron trifluoride complex is one with pyridine, piperidine, mono-, di-, or tri-ethylamine, mono-, di-, or tri-methylamine, isophoronediamine, benzylamine, cyclohexylamine, trimethylhexamethylenediamine, N,N,N,',N'-tetramethylhexamethylenediamine, trimethylphosphine or triphenylphosphine.
Claim 6
Dependent Claim
37 words
A method as claimed in claim 1, in which the cationically polymerizable material is an oxetane, thiirane, dihydropyran, tetrahydrofuran, 1,2-monoepoxide or episulfide having from 2 to 20 carbon atoms, epoxide resin, phenoplast, aminoplast or ethylenically unsaturated material.
Claim 7
Dependent Claim
46 words
A method as claimed in claim 1, in which the cationically polymerizable material is epoxide resin and is a cycloaliphatic epoxide resin, a polyglycidyl ether, or an advanced polyglycidyl ether, of a polyhydric alcohol or a polyhydric phenol, or a polyglycdyl ester of a polycarboxylic acid.
Claim 8
Dependent Claim
27 words
A method as claimed in claim 1, wherein there is used 0.1 to 10% by weight of the complex, based on the weight of the polymerizable material.
Claim 9
Dependent Claim
55 words
A method as claimed in claim 1 that is effected by mixing the polymerizable material with the complex in an organic or aqueous organic solvent, inserting a conductive material as the anode and a metal as the cathode and passing a current until a suitable thickness of polymerizable material has been deposited on the anode.
Claim 10
Dependent Claim
23 words
A method as claimed in claim 8 in which the concentration of polymerizable material in solution is from 5% to 50% by weight.
Claim 11
Dependent Claim
21 words
A method as claimed in claim 8 which is effected at a temperature within the range 0° C. to 80° C.
Claim 12
Dependent Claim
41 words
A method as claimed in claim 8 in which the solvent is a ketone, an alcohol, a halogenated hydrocarbon, a nitro compound, a mixture of two or more thereof or, where water-miscible, a mixture of one or more thereof with water.
Claim 13
Dependent Claim
18 words
A method as claimed in claim 1, in which the voltage used is 5 V to 150 V.
Claim 14
Dependent Claim
18 words
A method as claimed in claim 1, in which the voltage used is 5 V to 100 V.
Claim 15
Dependent Claim
18 words
A method as claimed in claim 1, in which the voltage used is 15 V to 50 V.
Claim 16
Dependent Claim
18 words
A method as claimed in claim 1, in which the voltage used in 50 V to 100 V.
Claim 17
Dependent Claim
20 words
A method as claimed in claim 1, in which a conductive substrate to be coated is used as the anode.
Claim 18
Dependent Claim
20 words
A method as claimed in claim 16, in which the conductive substrate is a metal or a metallised non-conductive material.
Claim 19
Dependent Claim
11 words
A material polymerized by a method as claimed in claim 1.
Claim 20
Dependent Claim
12 words
A conductive substrate coated by a method as claimed in claim 16.
References Cited (Backward Citations)
US4297188A
Cited
US4416752A
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) | 1989-06-23 | 1989-12-23 | 1990-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-23 | 1993-12-23 | 1994-06-24 | $3760.00 | Window Closed / Lapsed |
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